534b6a84a6
- 在沙箱中实现了新的功能，包括内存分配和API钩子初始化 - 更新了沙箱类，增加了对WFP引擎的支持 - 添加了多个API的实现，如GetLastError、InitializeCriticalSection等 - 修改了主函数以使用新的沙箱功能，替换了恶意软件扫描功能 - 更新了项目文件以包含新的源文件和API实现 - 改进了错误处理和日志记录功能
2128 lines
74 KiB
C++
2128 lines
74 KiB
C++
#include "sandbox.h"
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#include "sandbox_callbacks.h"
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void Api_GetLastError(void* sandbox, uc_engine* uc, uint64_t address) {
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auto context = static_cast<Sandbox*>(sandbox);
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DWORD last_error = 0;
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// 从TEB中获取LastError
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if (context->GetPeInfo()->isX64) {
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last_error = context->GetTeb64()->LastErrorValue;
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} else {
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last_error = context->GetTeb32()->LastErrorValue;
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}
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printf("[*] GetLastError: LastError=0x%x\n", last_error);
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uc_reg_write(uc,
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context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
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&last_error);
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}
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auto Api_InitializeCriticalSectionAndSpinCount(void* sandbox, uc_engine* uc,
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uint64_t address) -> void {
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auto context = static_cast<Sandbox*>(sandbox);
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uint64_t lpCriticalSection = 0;
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uint32_t dwSpinCount = 0;
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BOOL success = TRUE; // 默认返回成功
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// 获取参数
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if (context->GetPeInfo()->isX64) {
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// x64: rcx = lpCriticalSection, rdx = dwSpinCount
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uc_reg_read(uc, UC_X86_REG_RCX, &lpCriticalSection);
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uint64_t temp_spin_count = 0;
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uc_reg_read(uc, UC_X86_REG_RDX, &temp_spin_count);
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dwSpinCount = static_cast<uint32_t>(temp_spin_count);
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} else {
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// x86: 从栈上读取参数
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uint32_t esp_address = 0;
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uint32_t temp_cs = 0;
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uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
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esp_address += 0x4; // 跳过返回地址
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uc_mem_read(uc, esp_address, &temp_cs, sizeof(uint32_t));
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lpCriticalSection = temp_cs;
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esp_address += 0x4;
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uc_mem_read(uc, esp_address, &dwSpinCount, sizeof(uint32_t));
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}
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if (lpCriticalSection != 0) {
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// 初始化关键段结构
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RTL_CRITICAL_SECTION cs = {0};
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cs.LockCount = -1; // 初始未锁定状态
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cs.RecursionCount = 0; // 初始递归计数为0
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cs.SpinCount = dwSpinCount; // 设置自旋计数
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cs.OwningThread = 0; // 初始无拥有线程
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cs.LockSemaphore = 0; // 初始信号量为0
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// 写入初始化后的结构到目标内存
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uc_mem_write(uc, lpCriticalSection, &cs, sizeof(RTL_CRITICAL_SECTION));
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} else {
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success = FALSE;
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// 设置LastError
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DWORD error = ERROR_INVALID_PARAMETER;
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if (context->GetPeInfo()->isX64) {
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context->GetTeb64()->LastErrorValue = error;
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} else {
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context->GetTeb32()->LastErrorValue = error;
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}
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}
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printf(
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"[*] InitializeCriticalSectionAndSpinCount: CS=0x%llx, SpinCount=0x%x, "
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"Success=%d\n",
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lpCriticalSection, dwSpinCount, success);
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uc_reg_write(uc,
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context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
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&success);
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}
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auto Api_InitializeCriticalSectionEx(void* sandbox, uc_engine* uc,
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uint64_t address) -> void {
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auto context = static_cast<Sandbox*>(sandbox);
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uint64_t lpCriticalSection = 0;
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uint32_t dwSpinCount = 0;
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uint32_t dwFlags = 0;
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BOOL success = TRUE; // 默认返回成功
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// 获取参数
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if (context->GetPeInfo()->isX64) {
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// x64: rcx = lpCriticalSection, rdx = dwSpinCount, r8 = dwFlags
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uc_reg_read(uc, UC_X86_REG_RCX, &lpCriticalSection);
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uint64_t temp_spin_count = 0;
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uc_reg_read(uc, UC_X86_REG_RDX, &temp_spin_count);
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dwSpinCount = static_cast<uint32_t>(temp_spin_count);
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uint64_t temp_flags = 0;
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uc_reg_read(uc, UC_X86_REG_R8, &temp_flags);
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dwFlags = static_cast<uint32_t>(temp_flags);
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} else {
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// x86: 从栈上读取参数
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uint32_t esp_address = 0;
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uint32_t temp_cs = 0;
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uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
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esp_address += 0x4; // 跳过返回地址
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uc_mem_read(uc, esp_address, &temp_cs, sizeof(uint32_t));
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lpCriticalSection = temp_cs;
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esp_address += 0x4;
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uc_mem_read(uc, esp_address, &dwSpinCount, sizeof(uint32_t));
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esp_address += 0x4;
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uc_mem_read(uc, esp_address, &dwFlags, sizeof(uint32_t));
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}
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if (lpCriticalSection != 0) {
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// 初始化关键段结构
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RTL_CRITICAL_SECTION cs = {0};
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cs.LockCount = -1; // 初始未锁定状态
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cs.RecursionCount = 0; // 初始递归计数为0
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cs.SpinCount = dwSpinCount; // 设置自旋计数
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cs.OwningThread = 0; // 初始无拥有线程
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cs.LockSemaphore = 0; // 初始信号量为0
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// 处理特殊标志
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// CRITICAL_SECTION_FLAG_NO_DEBUG_INFO = 0x01000000
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// CRITICAL_SECTION_FLAG_DYNAMIC_SPIN = 0x02000000
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// CRITICAL_SECTION_FLAG_STATIC_INIT = 0x04000000
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// CRITICAL_SECTION_FLAG_RESOURCE_TYPE = 0x08000000
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// CRITICAL_SECTION_FLAG_FORCE_DEBUG_INFO = 0x10000000
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// 写入初始化后的结构到目标内存
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uc_mem_write(uc, lpCriticalSection, &cs, sizeof(RTL_CRITICAL_SECTION));
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} else {
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success = FALSE;
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// 设置LastError
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DWORD error = ERROR_INVALID_PARAMETER;
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if (context->GetPeInfo()->isX64) {
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context->GetTeb64()->LastErrorValue = error;
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} else {
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context->GetTeb32()->LastErrorValue = error;
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}
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}
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printf(
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"[*] InitializeCriticalSectionEx: CS=0x%llx, SpinCount=0x%x, "
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"Flags=0x%x, "
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"Success=%d\n",
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lpCriticalSection, dwSpinCount, dwFlags, success);
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uc_reg_write(uc,
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context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
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&success);
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}
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auto Api_TlsAlloc(void* sandbox, uc_engine* uc, uint64_t address) -> void {
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auto context = static_cast<Sandbox*>(sandbox);
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DWORD tls_index = TLS_OUT_OF_INDEXES; // 默认返回失败值
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// 获取TEB结构
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if (context->GetPeInfo()->isX64) {
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auto teb = context->GetTeb64();
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// 在TLS槽中查找第一个可用的位置
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for (DWORD i = 0; i < 64; i++) { // TEB中TlsSlots数组大小为64
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if (teb->TlsSlots[i] == (void*)0x1337ffffff) {
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teb->TlsSlots[i] = (void*)0; // 标记为已使用
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tls_index = i;
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break;
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}
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}
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} else {
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auto teb = context->GetTeb32();
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// 在TLS槽中查找第一个可用的位置
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for (DWORD i = 0; i < 64; i++) { // TEB中TlsSlots数组大小为64
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if (teb->TlsSlots[i] == 0x1337) {
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teb->TlsSlots[i] = 0; // 标记为已使用
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tls_index = i;
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break;
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}
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}
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}
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if (tls_index == TLS_OUT_OF_INDEXES) {
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// 设置LastError为没有可用的TLS索引
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DWORD error = ERROR_NO_MORE_ITEMS;
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if (context->GetPeInfo()->isX64) {
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context->GetTeb64()->LastErrorValue = error;
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} else {
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context->GetTeb32()->LastErrorValue = error;
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}
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}
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printf("[*] TlsAlloc: Allocated TLS Index=0x%x\n", tls_index);
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// 返回分配的TLS索引
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uc_reg_write(uc,
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context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
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&tls_index);
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}
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auto Api_TlsSetValue(void* sandbox, uc_engine* uc, uint64_t address) -> void {
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auto context = static_cast<Sandbox*>(sandbox);
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uint32_t dwTlsIndex = 0;
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uint64_t lpTlsValue = 0;
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BOOL success = FALSE;
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// 获取参数
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if (context->GetPeInfo()->isX64) {
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// x64: rcx = dwTlsIndex, rdx = lpTlsValue
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uint64_t temp_index;
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uc_reg_read(uc, UC_X86_REG_RCX, &temp_index);
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dwTlsIndex = static_cast<uint32_t>(temp_index);
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uc_reg_read(uc, UC_X86_REG_RDX, &lpTlsValue);
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} else {
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// x86: 从栈上读取参数
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uint32_t esp_address = 0;
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uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
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esp_address += 0x4; // 跳过返回地址
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uc_mem_read(uc, esp_address, &dwTlsIndex, sizeof(uint32_t));
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esp_address += 0x4;
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uint32_t temp_value;
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uc_mem_read(uc, esp_address, &temp_value, sizeof(uint32_t));
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lpTlsValue = temp_value;
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}
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// 检查索引是否有效（小于64）
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if (dwTlsIndex < 64) {
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if (context->GetPeInfo()->isX64) {
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auto teb = context->GetTeb64();
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// 检查槽是否已分配（不为nullptr）
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if (teb->TlsSlots[dwTlsIndex] != (void*)0x1337ffffff) {
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teb->TlsSlots[dwTlsIndex] = (void*)lpTlsValue;
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success = TRUE;
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}
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} else {
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auto teb = context->GetTeb32();
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// 检查槽是否已分配（不为0）
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if (teb->TlsSlots[dwTlsIndex] != 0x1337) {
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teb->TlsSlots[dwTlsIndex] = static_cast<uint32_t>(lpTlsValue);
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success = TRUE;
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}
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}
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}
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if (!success) {
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// 设置LastError
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DWORD error = ERROR_INVALID_PARAMETER;
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if (context->GetPeInfo()->isX64) {
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context->GetTeb64()->LastErrorValue = error;
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} else {
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context->GetTeb32()->LastErrorValue = error;
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}
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}
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printf("[*] TlsSetValue: Index=0x%x, Value=0x%llx, Success=%d\n",
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dwTlsIndex, lpTlsValue, success);
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uc_reg_write(uc,
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context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
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&success);
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}
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auto Api_DeleteCriticalSection(void* sandbox, uc_engine* uc, uint64_t address)
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-> void {
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auto context = static_cast<Sandbox*>(sandbox);
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uint64_t lpCriticalSection = 0;
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// 获取参数
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if (context->GetPeInfo()->isX64) {
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// x64: rcx = lpCriticalSection
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uc_reg_read(uc, UC_X86_REG_RCX, &lpCriticalSection);
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} else {
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// x86: 从栈上读取参数
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uint32_t esp_address = 0;
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uint32_t temp_cs = 0;
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uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
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esp_address += 0x4; // 跳过返回地址
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uc_mem_read(uc, esp_address, &temp_cs, sizeof(uint32_t));
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lpCriticalSection = temp_cs;
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}
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if (lpCriticalSection != 0) {
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// 读取现有的关键段结构
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RTL_CRITICAL_SECTION cs;
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uc_mem_read(uc, lpCriticalSection, &cs, sizeof(RTL_CRITICAL_SECTION));
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// 检查是否有线程仍在等待
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if (cs.LockCount >= 0) {
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// 有线程正在等待，设置错误
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DWORD error = ERROR_SEM_IS_SET;
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if (context->GetPeInfo()->isX64) {
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context->GetTeb64()->LastErrorValue = error;
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} else {
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context->GetTeb32()->LastErrorValue = error;
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}
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}
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// 清零内存，表示删除
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memset(&cs, 0, sizeof(RTL_CRITICAL_SECTION));
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uc_mem_write(uc, lpCriticalSection, &cs, sizeof(RTL_CRITICAL_SECTION));
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}
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printf("[*] DeleteCriticalSection: CS=0x%llx\n", lpCriticalSection);
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}
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auto Api_IsProcessorFeaturePresent(void* sandbox, uc_engine* uc,
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uint64_t address) -> void {
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auto context = static_cast<Sandbox*>(sandbox);
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uint32_t feature_number = 0;
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BOOL is_supported = FALSE;
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// 获取参数
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if (context->GetPeInfo()->isX64) {
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// x64: rcx = FeatureNumber
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uint64_t temp_feature;
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uc_reg_read(uc, UC_X86_REG_RCX, &temp_feature);
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feature_number = static_cast<uint32_t>(temp_feature);
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} else {
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// x86: 从栈上读取参数
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uint32_t esp_address = 0;
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uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
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esp_address += 0x4; // 跳过返回地址
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uc_mem_read(uc, esp_address, &feature_number, sizeof(uint32_t));
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}
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// 模拟一些常见的处理器特性
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switch (feature_number) {
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case PF_FLOATING_POINT_PRECISION_ERRATA: // 0
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is_supported = FALSE;
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break;
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case PF_FLOATING_POINT_EMULATED: // 1
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is_supported = FALSE;
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break;
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case PF_COMPARE_EXCHANGE_DOUBLE: // 2
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is_supported = TRUE;
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break;
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case PF_MMX_INSTRUCTIONS_AVAILABLE: // 3
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is_supported = TRUE;
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break;
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case PF_XMMI_INSTRUCTIONS_AVAILABLE: // 6
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is_supported = TRUE;
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break;
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case PF_3DNOW_INSTRUCTIONS_AVAILABLE: // 7
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is_supported = FALSE;
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break;
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case PF_RDTSC_INSTRUCTION_AVAILABLE: // 8
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is_supported = TRUE;
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break;
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case PF_PAE_ENABLED: // 9
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is_supported = TRUE;
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break;
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case PF_XMMI64_INSTRUCTIONS_AVAILABLE: // 10
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is_supported = TRUE;
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break;
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case PF_SSE_DAZ_MODE_AVAILABLE: // 11
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is_supported = TRUE;
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break;
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case PF_NX_ENABLED: // 12
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is_supported = TRUE;
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break;
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case PF_SSE3_INSTRUCTIONS_AVAILABLE: // 13
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is_supported = TRUE;
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break;
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case PF_COMPARE_EXCHANGE128: // 14
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is_supported = TRUE;
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break;
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case PF_XSAVE_ENABLED: // 17
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is_supported = TRUE;
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break;
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case PF_ARM_VFP_32_REGISTERS_AVAILABLE: // 18
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is_supported = FALSE;
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break;
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default:
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is_supported = FALSE;
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break;
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}
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printf("[*] IsProcessorFeaturePresent: Feature=0x%x, Supported=%d\n",
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feature_number, is_supported);
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uc_reg_write(uc,
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context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
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&is_supported);
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}
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auto Api___set_app_type(void* sandbox, uc_engine* uc, uint64_t address)
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-> void {
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auto context = static_cast<Sandbox*>(sandbox);
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int32_t appType = 0;
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// 获取参数
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if (context->GetPeInfo()->isX64) {
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// x64: rcx = appType
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uint64_t temp_type;
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uc_reg_read(uc, UC_X86_REG_RCX, &temp_type);
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appType = static_cast<int32_t>(temp_type);
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} else {
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// x86: 从栈上读取参数
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uint32_t esp_address = 0;
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uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
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esp_address += 0x4; // 跳过返回地址
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uc_mem_read(uc, esp_address, &appType, sizeof(int32_t));
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}
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// 简单地返回0表示成功
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int32_t result = 0;
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printf("[*] __set_app_type: AppType=%d\n", appType);
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uc_reg_write(uc,
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context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
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&result);
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}
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auto Api___p__fmode(void* sandbox, uc_engine* uc, uint64_t address) -> void {
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auto sb = static_cast<Sandbox*>(sandbox);
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// 检查是否已经创建了 _fmode 变量
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static uint64_t fmode_address = 0;
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static int32_t fmode_value = 0; // 默认为文本模式 (_O_TEXT)
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if (fmode_address == 0) {
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// 为 _fmode 变量分配内存
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// 使用特定堆地址，与其他 API 一致
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uint64_t heap_handle =
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sb->GetPeInfo()->isX64 ? HEAP_ADDRESS_64 : HEAP_ADDRESS_32;
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// 在堆上分配空间
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HeapSegment* segment = nullptr;
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auto it = sb->m_heapSegments.find(heap_handle);
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if (it != sb->m_heapSegments.end()) {
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segment = it->second;
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} else {
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// 创建新的堆段
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segment = sb->CreateHeapSegment(heap_handle, 0x10000);
|
||
sb->m_heapSegments[heap_handle] = segment;
|
||
}
|
||
|
||
if (segment) {
|
||
fmode_address = sb->AllocateFromSegment(segment, sizeof(int32_t));
|
||
if (fmode_address) {
|
||
// 初始化 _fmode 为文本模式
|
||
uc_mem_write(uc, fmode_address, &fmode_value, sizeof(int32_t));
|
||
printf(
|
||
"[*] __p__fmode: Allocated _fmode at 0x%llx with value "
|
||
"%d\n",
|
||
fmode_address, fmode_value);
|
||
}
|
||
}
|
||
}
|
||
|
||
// 返回 _fmode 变量的地址
|
||
printf("[*] __p__fmode: Returning address 0x%llx\n", fmode_address);
|
||
|
||
// 设置返回值
|
||
if (sb->GetPeInfo()->isX64) {
|
||
uc_reg_write(uc, UC_X86_REG_RAX, &fmode_address);
|
||
} else {
|
||
uint32_t eax = static_cast<uint32_t>(fmode_address);
|
||
uc_reg_write(uc, UC_X86_REG_EAX, &eax);
|
||
}
|
||
}
|
||
|
||
// 实现 AreFileApisANSI API
|
||
auto Api_AreFileApisANSI(void* sandbox, uc_engine* uc, uint64_t address)
|
||
-> void {
|
||
// 默认返回TRUE，表示使用ANSI字符集
|
||
BOOL isAnsi = TRUE;
|
||
printf("[*] AreFileApisANSI: IsAnsi=%d\n", isAnsi);
|
||
|
||
// 返回结果
|
||
uc_reg_write(uc,
|
||
static_cast<Sandbox*>(sandbox)->GetPeInfo()->isX64
|
||
? UC_X86_REG_RAX
|
||
: UC_X86_REG_EAX,
|
||
&isAnsi);
|
||
}
|
||
|
||
auto Api_WideCharToMultiByte(void* sandbox, uc_engine* uc, uint64_t address)
|
||
-> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
uint32_t CodePage = 0;
|
||
uint32_t dwFlags = 0;
|
||
uint64_t lpWideCharStr = 0;
|
||
int32_t cchWideChar = 0;
|
||
uint64_t lpMultiByteStr = 0;
|
||
int32_t cbMultiByte = 0;
|
||
uint64_t lpDefaultChar = 0;
|
||
uint64_t lpUsedDefaultChar = 0;
|
||
|
||
// 获取参数
|
||
if (context->GetPeInfo()->isX64) {
|
||
// x64: rcx, rdx, r8, r9, [rsp+0x28], [rsp+0x30], [rsp+0x38], [rsp+0x40]
|
||
uint64_t temp_codepage = 0;
|
||
uint64_t temp_flags = 0;
|
||
uint64_t temp_widechar = 0;
|
||
uint64_t temp_cchwidechar = 0;
|
||
|
||
uc_reg_read(uc, UC_X86_REG_RCX, &temp_codepage);
|
||
uc_reg_read(uc, UC_X86_REG_RDX, &temp_flags);
|
||
uc_reg_read(uc, UC_X86_REG_R8, &temp_widechar);
|
||
uc_reg_read(uc, UC_X86_REG_R9, &temp_cchwidechar);
|
||
|
||
CodePage = static_cast<uint32_t>(temp_codepage);
|
||
dwFlags = static_cast<uint32_t>(temp_flags);
|
||
lpWideCharStr = temp_widechar;
|
||
cchWideChar = static_cast<int32_t>(temp_cchwidechar);
|
||
|
||
// 获取栈上的参数
|
||
uint64_t rsp = 0;
|
||
uc_reg_read(uc, UC_X86_REG_RSP, &rsp);
|
||
uint64_t shadow_space = 0x20;
|
||
|
||
uc_mem_read(uc, rsp + shadow_space + 0x8, &lpMultiByteStr,
|
||
sizeof(uint64_t));
|
||
uc_mem_read(uc, rsp + shadow_space + 0x10, &cbMultiByte,
|
||
sizeof(int32_t));
|
||
uc_mem_read(uc, rsp + shadow_space + 0x18, &lpDefaultChar,
|
||
sizeof(uint64_t));
|
||
uc_mem_read(uc, rsp + shadow_space + 0x20, &lpUsedDefaultChar,
|
||
sizeof(uint64_t));
|
||
} else {
|
||
// x86: 从栈上读取参数
|
||
uint32_t esp_address = 0;
|
||
uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
|
||
esp_address += 0x4; // 跳过返回地址
|
||
|
||
uc_mem_read(uc, esp_address, &CodePage, sizeof(uint32_t));
|
||
uc_mem_read(uc, esp_address + 0x4, &dwFlags, sizeof(uint32_t));
|
||
uc_mem_read(uc, esp_address + 0x8, &lpWideCharStr, sizeof(uint32_t));
|
||
uc_mem_read(uc, esp_address + 0xC, &cchWideChar, sizeof(int32_t));
|
||
uc_mem_read(uc, esp_address + 0x10, &lpMultiByteStr, sizeof(uint32_t));
|
||
uc_mem_read(uc, esp_address + 0x14, &cbMultiByte, sizeof(int32_t));
|
||
uc_mem_read(uc, esp_address + 0x18, &lpDefaultChar, sizeof(uint32_t));
|
||
uc_mem_read(uc, esp_address + 0x1C, &lpUsedDefaultChar,
|
||
sizeof(uint32_t));
|
||
}
|
||
|
||
// 基本参数验证
|
||
if (lpWideCharStr == 0 || cchWideChar == 0) {
|
||
DWORD error = ERROR_INVALID_PARAMETER;
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = error;
|
||
}
|
||
int result = 0;
|
||
uc_reg_write(
|
||
uc, context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&result);
|
||
return;
|
||
}
|
||
|
||
// 读取源宽字符串
|
||
std::vector<wchar_t> srcBuffer;
|
||
size_t actualWideLength = 0;
|
||
|
||
if (cchWideChar == -1) {
|
||
// 如果长度为-1,则源字符串以null结尾
|
||
wchar_t ch = 0;
|
||
do {
|
||
if (uc_mem_read(uc, lpWideCharStr + (actualWideLength * 2), &ch,
|
||
2) != UC_ERR_OK) {
|
||
break;
|
||
}
|
||
srcBuffer.push_back(ch);
|
||
actualWideLength++;
|
||
} while (ch != 0 && actualWideLength < MAX_PATH);
|
||
|
||
if (actualWideLength >= MAX_PATH) {
|
||
DWORD error = ERROR_INSUFFICIENT_BUFFER;
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = error;
|
||
}
|
||
int result = 0;
|
||
uc_reg_write(
|
||
uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&result);
|
||
return;
|
||
}
|
||
} else {
|
||
// 使用指定长度
|
||
if (cchWideChar > 0 && cchWideChar <= MAX_PATH) {
|
||
srcBuffer.resize(cchWideChar);
|
||
if (uc_mem_read(uc, lpWideCharStr, srcBuffer.data(),
|
||
cchWideChar * 2) != UC_ERR_OK) {
|
||
DWORD error = ERROR_INVALID_PARAMETER;
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = error;
|
||
}
|
||
int result = 0;
|
||
uc_reg_write(uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX
|
||
: UC_X86_REG_EAX,
|
||
&result);
|
||
return;
|
||
}
|
||
actualWideLength = cchWideChar;
|
||
} else {
|
||
DWORD error = ERROR_INVALID_PARAMETER;
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = error;
|
||
}
|
||
int result = 0;
|
||
uc_reg_write(
|
||
uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&result);
|
||
return;
|
||
}
|
||
}
|
||
|
||
// 读取默认字符和使用默认字符标志
|
||
char defaultChar = '?';
|
||
BOOL usedDefaultChar = FALSE;
|
||
if (lpDefaultChar != 0) {
|
||
uc_mem_read(uc, lpDefaultChar, &defaultChar, 1);
|
||
}
|
||
|
||
// 计算所需的多字节缓冲区大小
|
||
int requiredSize = WideCharToMultiByte(
|
||
CodePage, dwFlags, srcBuffer.data(), static_cast<int>(actualWideLength),
|
||
nullptr, 0, lpDefaultChar ? &defaultChar : nullptr,
|
||
lpUsedDefaultChar ? &usedDefaultChar : nullptr);
|
||
|
||
if (requiredSize == 0) {
|
||
// 获取并设置错误码
|
||
DWORD error = GetLastError();
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = error;
|
||
}
|
||
int result = 0;
|
||
uc_reg_write(
|
||
uc, context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&result);
|
||
return;
|
||
}
|
||
|
||
// 如果只是查询所需缓冲区大小
|
||
if (lpMultiByteStr == 0 || cbMultiByte == 0) {
|
||
uc_reg_write(
|
||
uc, context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&requiredSize);
|
||
return;
|
||
}
|
||
|
||
// 检查目标缓冲区大小是否足够
|
||
if (cbMultiByte < requiredSize) {
|
||
DWORD error = ERROR_INSUFFICIENT_BUFFER;
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = error;
|
||
}
|
||
int result = 0;
|
||
uc_reg_write(
|
||
uc, context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&result);
|
||
return;
|
||
}
|
||
|
||
// 执行实际转换
|
||
std::vector<char> multiByteBuffer(requiredSize);
|
||
int result = WideCharToMultiByte(
|
||
CodePage, dwFlags, srcBuffer.data(), static_cast<int>(actualWideLength),
|
||
multiByteBuffer.data(), requiredSize,
|
||
lpDefaultChar ? &defaultChar : nullptr,
|
||
lpUsedDefaultChar ? &usedDefaultChar : nullptr);
|
||
|
||
if (result > 0) {
|
||
// 写入转换后的字符串到目标内存
|
||
if (uc_mem_write(uc, lpMultiByteStr, multiByteBuffer.data(), result) !=
|
||
UC_ERR_OK) {
|
||
DWORD error = ERROR_INVALID_PARAMETER;
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = error;
|
||
}
|
||
result = 0;
|
||
}
|
||
|
||
// 如果需要，写回使用默认字符标志
|
||
if (lpUsedDefaultChar != 0) {
|
||
uc_mem_write(uc, lpUsedDefaultChar, &usedDefaultChar, sizeof(BOOL));
|
||
}
|
||
} else {
|
||
// 获取并设置错误码
|
||
DWORD error = GetLastError();
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = error;
|
||
}
|
||
}
|
||
|
||
printf(
|
||
"[*] WideCharToMultiByte: CodePage=%u, Flags=0x%x, WideStr=%p, "
|
||
"WideLen=%d, MultiStr=%p, MultiLen=%d, Result=%d\n",
|
||
CodePage, dwFlags, (void*)lpWideCharStr, cchWideChar,
|
||
(void*)lpMultiByteStr, cbMultiByte, result);
|
||
|
||
uc_reg_write(uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&result);
|
||
}
|
||
|
||
// 实现 InitializeSListHead API
|
||
auto Api_InitializeSListHead(void* sandbox, uc_engine* uc, uint64_t address)
|
||
-> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
uint64_t ListHead = 0;
|
||
|
||
// 获取参数
|
||
if (context->GetPeInfo()->isX64) {
|
||
// x64: rcx = ListHead
|
||
uc_reg_read(uc, UC_X86_REG_RCX, &ListHead);
|
||
} else {
|
||
// x86: 从栈上读取参数
|
||
uint32_t esp_address = 0;
|
||
uint32_t temp_listhead = 0;
|
||
uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
|
||
esp_address += 0x4; // 跳过返回地址
|
||
uc_mem_read(uc, esp_address, &temp_listhead, sizeof(uint32_t));
|
||
ListHead = temp_listhead;
|
||
}
|
||
|
||
if (ListHead != 0) {
|
||
if (context->GetPeInfo()->isX64) {
|
||
// 64位系统的SLIST_HEADER结构 (16字节对齐)
|
||
struct SLIST_HEADER64 {
|
||
union {
|
||
struct {
|
||
ULONGLONG Alignment;
|
||
ULONGLONG Region;
|
||
} DUMMYSTRUCTNAME;
|
||
struct {
|
||
ULONGLONG Depth : 16;
|
||
ULONGLONG Sequence : 48;
|
||
ULONGLONG Reserved : 4;
|
||
ULONGLONG NextEntry : 60;
|
||
} HeaderX64;
|
||
};
|
||
} header = {0};
|
||
|
||
// 初始化Depth和Sequence为0
|
||
header.HeaderX64.Depth = 0;
|
||
header.HeaderX64.Sequence = 0;
|
||
header.HeaderX64.Reserved = 0;
|
||
header.HeaderX64.NextEntry = 0;
|
||
|
||
// 写入初始化的结构
|
||
uc_mem_write(uc, ListHead, &header, sizeof(SLIST_HEADER64));
|
||
} else {
|
||
// 32位系统的SLIST_HEADER结构 (8字节)
|
||
struct SLIST_HEADER32 {
|
||
union {
|
||
ULONGLONG Alignment;
|
||
struct {
|
||
SLIST_ENTRY* Next;
|
||
WORD Depth;
|
||
WORD Sequence;
|
||
} Header32;
|
||
};
|
||
} header = {0};
|
||
|
||
// 初始化Next、Depth和Sequence为0
|
||
header.Header32.Next = nullptr;
|
||
header.Header32.Depth = 0;
|
||
header.Header32.Sequence = 0;
|
||
|
||
// 写入初始化的结构
|
||
uc_mem_write(uc, ListHead, &header, sizeof(SLIST_HEADER32));
|
||
}
|
||
}
|
||
|
||
printf("[*] InitializeSListHead: ListHead=0x%llx\n", ListHead);
|
||
}
|
||
|
||
// 实现 GetEnvironmentStringsW API
|
||
auto Api_GetEnvironmentStringsW(void* sandbox, uc_engine* uc, uint64_t address)
|
||
-> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
uint64_t envBlock = context->GetEnvBlockBase();
|
||
uc_reg_write(uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&envBlock);
|
||
}
|
||
|
||
// 实现 FreeEnvironmentStringsW API
|
||
auto Api_FreeEnvironmentStringsW(void* sandbox, uc_engine* uc, uint64_t address)
|
||
-> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
uint64_t lpszEnvironmentBlock = 0;
|
||
|
||
// 获取参数
|
||
if (context->GetPeInfo()->isX64) {
|
||
// x64: rcx = lpszEnvironmentBlock
|
||
uc_reg_read(uc, UC_X86_REG_RCX, &lpszEnvironmentBlock);
|
||
} else {
|
||
// x86: 从栈上读取参数
|
||
uint32_t esp_address = 0;
|
||
uint32_t temp_block = 0;
|
||
uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
|
||
esp_address += 0x4; // 跳过返回地址
|
||
uc_mem_read(uc, esp_address, &temp_block, sizeof(uint32_t));
|
||
lpszEnvironmentBlock = temp_block;
|
||
}
|
||
|
||
// 检查传入的地址是否是我们之前分配的环境块地址
|
||
BOOL success = (lpszEnvironmentBlock == context->GetEnvBlockBase());
|
||
|
||
if (!success) {
|
||
// 如果地址无效，设置错误码
|
||
DWORD error = ERROR_INVALID_PARAMETER;
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = error;
|
||
}
|
||
}
|
||
|
||
printf("[*] FreeEnvironmentStringsW: Block=0x%llx, Success=%d\n",
|
||
lpszEnvironmentBlock, success);
|
||
|
||
// 返回操作是否成功
|
||
uc_reg_write(uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&success);
|
||
}
|
||
|
||
// 实现HeapCreate API
|
||
auto Api_HeapCreate(void* sandbox, uc_engine* uc, uint64_t address) -> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
uint32_t flOptions = 0;
|
||
uint64_t dwInitialSize = 0;
|
||
uint64_t dwMaximumSize = 0;
|
||
|
||
// 获取参数
|
||
if (context->GetPeInfo()->isX64) {
|
||
// x64: rcx = flOptions, rdx = dwInitialSize, r8 = dwMaximumSize
|
||
uint64_t temp_options;
|
||
uc_reg_read(uc, UC_X86_REG_RCX, &temp_options);
|
||
flOptions = static_cast<uint32_t>(temp_options);
|
||
uc_reg_read(uc, UC_X86_REG_RDX, &dwInitialSize);
|
||
uc_reg_read(uc, UC_X86_REG_R8, &dwMaximumSize);
|
||
} else {
|
||
// x86: 从栈上读取参数
|
||
uint32_t esp_address = 0;
|
||
uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
|
||
esp_address += 0x4; // 跳过返回地址
|
||
uc_mem_read(uc, esp_address, &flOptions, sizeof(uint32_t));
|
||
esp_address += 0x4;
|
||
uint32_t temp_initial;
|
||
uc_mem_read(uc, esp_address, &temp_initial, sizeof(uint32_t));
|
||
dwInitialSize = temp_initial;
|
||
esp_address += 0x4;
|
||
uint32_t temp_maximum;
|
||
uc_mem_read(uc, esp_address, &temp_maximum, sizeof(uint32_t));
|
||
dwMaximumSize = temp_maximum;
|
||
}
|
||
|
||
// 如果初始大小为0，使用默认大小
|
||
if (dwInitialSize == 0) {
|
||
dwInitialSize =
|
||
context->GetPeInfo()->isX64 ? HEAP_SIZE_64 : HEAP_SIZE_32;
|
||
}
|
||
|
||
// 如果最大大小小于初始大小，将其设置为初始大小
|
||
if (dwMaximumSize < dwInitialSize) {
|
||
dwMaximumSize = dwInitialSize;
|
||
}
|
||
|
||
// 生成新的堆基址
|
||
uint64_t heapBase =
|
||
context->GetPeInfo()->isX64
|
||
? (HEAP_ADDRESS_64 +
|
||
(context->GetHeapBlocks().size() * HEAP_SIZE_64))
|
||
: (HEAP_ADDRESS_32 +
|
||
(context->GetHeapBlocks().size() * HEAP_SIZE_32));
|
||
|
||
// 创建新的堆段
|
||
HeapSegment* segment = context->CreateHeapSegment(heapBase, dwInitialSize);
|
||
if (segment == nullptr) {
|
||
uint64_t null_handle = 0;
|
||
uc_reg_write(
|
||
uc, context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&null_handle);
|
||
return;
|
||
}
|
||
|
||
// 将新堆段添加到堆映射表中
|
||
context->m_heapSegments[heapBase] = segment;
|
||
|
||
// 映射堆内存
|
||
uc_err err =
|
||
uc_mem_map(uc, heapBase, dwInitialSize, UC_PROT_READ | UC_PROT_WRITE);
|
||
if (err != UC_ERR_OK) {
|
||
uint64_t null_handle = 0;
|
||
uc_reg_write(
|
||
uc, context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&null_handle);
|
||
return;
|
||
}
|
||
|
||
printf(
|
||
"[*] HeapCreate: Options=0x%x, InitialSize=0x%llx, MaximumSize=0x%llx, "
|
||
"Handle=0x%llx\n",
|
||
flOptions, dwInitialSize, dwMaximumSize, heapBase);
|
||
|
||
// 返回堆句柄（使用堆基址作为句柄）
|
||
uc_reg_write(uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&heapBase);
|
||
}
|
||
|
||
// 实现 SHGetKnownFolderPath API
|
||
auto Api_SHGetKnownFolderPath(void* sandbox, uc_engine* uc, uint64_t address)
|
||
-> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
uint64_t rfid = 0; // REFKNOWNFOLDERID
|
||
uint64_t dwFlags = 0; // DWORD
|
||
uint64_t hToken = 0; // HANDLE
|
||
uint64_t ppszPath = 0; // PWSTR*
|
||
uint64_t result = 0; // 返回值
|
||
|
||
// 获取参数
|
||
if (context->GetPeInfo()->isX64) {
|
||
// x64: rcx = rfid, rdx = dwFlags, r8 = hToken, r9 = ppszPath
|
||
uc_reg_read(uc, UC_X86_REG_RCX, &rfid);
|
||
uc_reg_read(uc, UC_X86_REG_RDX, &dwFlags);
|
||
uc_reg_read(uc, UC_X86_REG_R8, &hToken);
|
||
uc_reg_read(uc, UC_X86_REG_R9, &ppszPath);
|
||
} else {
|
||
// x86: 从栈上读取参数
|
||
uint32_t esp_address = 0;
|
||
uint32_t temp_rfid = 0;
|
||
uint32_t temp_flags = 0;
|
||
uint32_t temp_token = 0;
|
||
uint32_t temp_path = 0;
|
||
|
||
uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
|
||
esp_address += 0x4; // 跳过返回地址
|
||
|
||
uc_mem_read(uc, esp_address, &temp_rfid, sizeof(uint32_t));
|
||
esp_address += 0x4;
|
||
|
||
uc_mem_read(uc, esp_address, &temp_flags, sizeof(uint32_t));
|
||
esp_address += 0x4;
|
||
|
||
uc_mem_read(uc, esp_address, &temp_token, sizeof(uint32_t));
|
||
esp_address += 0x4;
|
||
|
||
uc_mem_read(uc, esp_address, &temp_path, sizeof(uint32_t));
|
||
|
||
rfid = temp_rfid;
|
||
dwFlags = temp_flags;
|
||
hToken = temp_token;
|
||
ppszPath = temp_path;
|
||
}
|
||
|
||
// 根据已知文件夹ID分配不同的路径
|
||
std::wstring folderPath;
|
||
|
||
// 常见已知文件夹GUID的16进制值映射表
|
||
std::map<uint64_t, std::wstring> knownFolders = {
|
||
// FOLDERID_Desktop = {B4BFCC3A-DB2C-424C-B029-7FE99A87C641}
|
||
{0xB4BFCC3A, L"C:\\Users\\User\\Desktop"},
|
||
// FOLDERID_Documents = {FDD39AD0-238F-46AF-ADB4-6C85480369C7}
|
||
{0xFDD39AD0, L"C:\\Users\\User\\Documents"},
|
||
// FOLDERID_Downloads = {374DE290-123F-4565-9164-39C4925E467B}
|
||
{0x374DE290, L"C:\\Users\\User\\Downloads"},
|
||
// FOLDERID_ProgramFiles = {905e63b6-c1bf-494e-b29c-65b732d3d21a}
|
||
{0x905e63b6, L"C:\\Program Files"},
|
||
// FOLDERID_ProgramFilesX86 = {7C5A40EF-A0FB-4BFC-874A-C0F2E0B9FA8E}
|
||
{0x7C5A40EF, L"C:\\Program Files (x86)"},
|
||
// FOLDERID_Windows = {F38BF404-1D43-42F2-9305-67DE0B28FC23}
|
||
{0xF38BF404, L"C:\\Windows"},
|
||
// FOLDERID_System = {1AC14E77-02E7-4E5D-B744-2EB1AE5198B7}
|
||
{0x1AC14E77, L"C:\\Windows\\System32"},
|
||
// FOLDERID_SystemX86 = {D65231B0-B2F1-4857-A4CE-A8E7C6EA7D27}
|
||
{0xD65231B0, L"C:\\Windows\\SysWOW64"},
|
||
// FOLDERID_ProgramData = {62AB5D82-FDC1-4DC3-A9DD-070D1D495D97}
|
||
{0x62AB5D82, L"C:\\ProgramData"},
|
||
// FOLDERID_LocalAppData = {F1B32785-6FBA-4FCF-9D55-7B8E7F157091}
|
||
{0xF1B32785, L"C:\\Users\\User\\AppData\\Local"},
|
||
// FOLDERID_RoamingAppData = {3EB685DB-65F9-4CF6-A03A-E3EF65729F3D}
|
||
{0x3EB685DB, L"C:\\Users\\User\\AppData\\Roaming"},
|
||
// FOLDERID_Startup = {B97D20BB-F46A-4C97-BA10-5E3608430854}
|
||
{0xB97D20BB,
|
||
L"C:\\Users\\User\\AppData\\Roaming\\Microsoft\\Windows\\Start "
|
||
L"Menu\\Programs\\Startup"},
|
||
// FOLDERID_StartMenu = {625B53C3-AB48-4EC1-BA1F-A1EF4146FC19}
|
||
{0x625B53C3,
|
||
L"C:\\Users\\User\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu"},
|
||
// FOLDERID_Fonts = {FD228CB7-AE11-4AE3-864C-16F3910AB8FE}
|
||
{0xFD228CB7, L"C:\\Windows\\Fonts"},
|
||
// FOLDERID_Templates = {A63293E8-664E-48DB-A079-DF759E0509F7}
|
||
{0xA63293E8,
|
||
L"C:\\Users\\User\\AppData\\Roaming\\Microsoft\\Windows\\Templates"},
|
||
// FOLDERID_PublicDesktop = {C4AA340D-F20F-4863-AFEF-F87EF2E6BA25}
|
||
{0xC4AA340D, L"C:\\Users\\Public\\Desktop"},
|
||
// FOLDERID_CommonDocuments = {ED4824AF-DCE4-45A8-81E2-FC7965083634}
|
||
{0xED4824AF, L"C:\\Users\\Public\\Documents"}};
|
||
|
||
// 从传入的rfid获取第一个DWORD作为键
|
||
uint32_t guidFirstDword = 0;
|
||
uc_mem_read(uc, rfid, &guidFirstDword, sizeof(uint32_t));
|
||
|
||
// 查找对应的文件夹路径
|
||
auto it = knownFolders.find(guidFirstDword);
|
||
if (it != knownFolders.end()) {
|
||
context->SetMalwareAnalysisType(MalwareAnalysisType::kSuspicious);
|
||
folderPath = it->second;
|
||
} else {
|
||
// 如果找不到对应的GUID，返回默认文档文件夹
|
||
folderPath = L"C:\\Users\\User\\Documents";
|
||
}
|
||
|
||
// 分配内存用于存储路径
|
||
uint64_t pathBuffer = 0;
|
||
size_t bufferSize = (folderPath.length() + 1) * sizeof(wchar_t);
|
||
|
||
// 从堆中分配内存
|
||
if (context->GetPeInfo()->isX64) {
|
||
HeapSegment* segment = context->FindHeapSegment(HEAP_ADDRESS_64);
|
||
if (segment) {
|
||
pathBuffer = context->AllocateFromSegment(segment, bufferSize);
|
||
}
|
||
} else {
|
||
HeapSegment* segment = context->FindHeapSegment(HEAP_ADDRESS_32);
|
||
if (segment) {
|
||
pathBuffer = context->AllocateFromSegment(segment, bufferSize);
|
||
}
|
||
}
|
||
|
||
if (pathBuffer != 0) {
|
||
// 写入路径
|
||
uc_mem_write(uc, pathBuffer, folderPath.c_str(), bufferSize);
|
||
|
||
// 写入路径地址到ppszPath指向的位置
|
||
if (ppszPath != 0) {
|
||
uc_mem_write(uc, ppszPath, &pathBuffer,
|
||
context->GetPeInfo()->isX64 ? 8 : 4);
|
||
result = 0; // S_OK
|
||
} else {
|
||
result = 0x80070057; // E_INVALIDARG
|
||
}
|
||
} else {
|
||
result = 0x8007000E; // E_OUTOFMEMORY
|
||
}
|
||
|
||
printf(
|
||
"[*] SHGetKnownFolderPath: rfid=0x%llx, flags=0x%x, token=0x%llx, "
|
||
"path=0x%llx, result=0x%llx, folder=%ls\n",
|
||
rfid, dwFlags, hToken, ppszPath, result, folderPath.c_str());
|
||
|
||
// 设置返回值
|
||
uc_reg_write(uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&result);
|
||
}
|
||
|
||
auto Api_EncodePointer(void* sandbox, uc_engine* uc, uint64_t address) -> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
uint64_t ptr = 0;
|
||
|
||
// 获取参数
|
||
if (context->GetPeInfo()->isX64) {
|
||
// x64: rcx = ptr
|
||
uc_reg_read(uc, UC_X86_REG_RCX, &ptr);
|
||
} else {
|
||
// x86: 从栈上读取参数
|
||
uint32_t esp_address = 0;
|
||
uint32_t temp_ptr = 0;
|
||
uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
|
||
esp_address += 0x4; // 跳过返回地址
|
||
uc_mem_read(uc, esp_address, &temp_ptr, sizeof(uint32_t));
|
||
ptr = temp_ptr;
|
||
}
|
||
|
||
// 使用固定密钥进行简单的异或操作来"编码"指针
|
||
// 注意：这是一个简化的实现，实际的Windows实现更复杂
|
||
uint64_t cookie = 0x1234567890ABCDEF;
|
||
uint64_t encoded_ptr = ptr ^ cookie;
|
||
|
||
printf("[*] EncodePointer: Original=0x%llx, Encoded=0x%llx\n", ptr,
|
||
encoded_ptr);
|
||
|
||
// 返回编码后的指针
|
||
uc_reg_write(uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&encoded_ptr);
|
||
}
|
||
|
||
auto Api_GetProcessHeap(void* sandbox, uc_engine* uc, uint64_t address)
|
||
-> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
// 返回默认堆句柄（使用堆基址作为句柄）
|
||
uint64_t heap_handle =
|
||
context->GetPeInfo()->isX64 ? HEAP_ADDRESS_64 : HEAP_ADDRESS_32;
|
||
|
||
printf("[*] GetProcessHeap: Handle=0x%llx\n", heap_handle);
|
||
|
||
// 返回堆句柄
|
||
uc_reg_write(uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&heap_handle);
|
||
}
|
||
|
||
// 实现HeapAlloc API
|
||
auto Api_HeapAlloc(void* sandbox, uc_engine* uc, uint64_t address) -> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
uint64_t hHeap = 0;
|
||
uint32_t dwFlags = 0;
|
||
uint64_t dwBytes = 0;
|
||
|
||
// 获取参数
|
||
if (context->GetPeInfo()->isX64) {
|
||
// x64: rcx = hHeap, rdx = dwFlags, r8 = dwBytes
|
||
uc_reg_read(uc, UC_X86_REG_RCX, &hHeap);
|
||
uint64_t temp_flags;
|
||
uc_reg_read(uc, UC_X86_REG_RDX, &temp_flags);
|
||
dwFlags = static_cast<uint32_t>(temp_flags);
|
||
uc_reg_read(uc, UC_X86_REG_R8, &dwBytes);
|
||
} else {
|
||
// x86: 从栈上读取参数
|
||
uint32_t esp_address = 0;
|
||
uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
|
||
esp_address += 0x4; // 跳过返回地址
|
||
uint32_t temp_heap;
|
||
uc_mem_read(uc, esp_address, &temp_heap, sizeof(uint32_t));
|
||
hHeap = temp_heap;
|
||
esp_address += 0x4;
|
||
uc_mem_read(uc, esp_address, &dwFlags, sizeof(uint32_t));
|
||
esp_address += 0x4;
|
||
uint32_t temp_bytes;
|
||
uc_mem_read(uc, esp_address, &temp_bytes, sizeof(uint32_t));
|
||
dwBytes = temp_bytes;
|
||
}
|
||
// 这里如果想检查有效,得先跑main,再跑其他的,浪费时间了,操
|
||
|
||
// 检查堆句柄是否有效
|
||
/*
|
||
uint64_t expected_handle =
|
||
context->GetPeInfo()->isX64 ? HEAP_ADDRESS_64 : HEAP_ADDRESS_32;
|
||
if (hHeap != expected_handle) {
|
||
uint64_t null_ptr = 0;
|
||
hHeap = expected_handle;
|
||
uc_reg_write(
|
||
uc, context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&null_ptr);
|
||
return;
|
||
}
|
||
*/
|
||
// 获取或创建堆段
|
||
HeapSegment* segment = nullptr;
|
||
auto it = context->m_heapSegments.find(hHeap);
|
||
if (it == context->m_heapSegments.end()) {
|
||
segment = context->CreateHeapSegment(
|
||
hHeap, context->GetPeInfo()->isX64 ? HEAP_SIZE_64 : HEAP_SIZE_32);
|
||
context->m_heapSegments[hHeap] = segment;
|
||
} else {
|
||
segment = it->second;
|
||
}
|
||
|
||
// 分配内存
|
||
uint64_t allocated_address = context->AllocateFromSegment(segment, dwBytes);
|
||
|
||
printf(
|
||
"[*] HeapAlloc: Handle=0x%llx, Flags=0x%x, Size=0x%llx, "
|
||
"Address=0x%llx\n",
|
||
hHeap, dwFlags, dwBytes, allocated_address);
|
||
|
||
// 返回分配的地址
|
||
uc_reg_write(uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&allocated_address);
|
||
}
|
||
|
||
// 实现HeapFree API
|
||
auto Api_HeapFree(void* sandbox, uc_engine* uc, uint64_t address) -> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
uint64_t hHeap = 0;
|
||
uint32_t dwFlags = 0;
|
||
uint64_t lpMem = 0;
|
||
|
||
// 获取参数
|
||
if (context->GetPeInfo()->isX64) {
|
||
// x64: rcx = hHeap, rdx = dwFlags, r8 = lpMem
|
||
uc_reg_read(uc, UC_X86_REG_RCX, &hHeap);
|
||
uint64_t temp_flags;
|
||
uc_reg_read(uc, UC_X86_REG_RDX, &temp_flags);
|
||
dwFlags = static_cast<uint32_t>(temp_flags);
|
||
uc_reg_read(uc, UC_X86_REG_R8, &lpMem);
|
||
} else {
|
||
// x86: 从栈上读取参数
|
||
uint32_t esp_address = 0;
|
||
uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
|
||
esp_address += 0x4; // 跳过返回地址
|
||
uint32_t temp_heap;
|
||
uc_mem_read(uc, esp_address, &temp_heap, sizeof(uint32_t));
|
||
hHeap = temp_heap;
|
||
esp_address += 0x4;
|
||
uc_mem_read(uc, esp_address, &dwFlags, sizeof(uint32_t));
|
||
esp_address += 0x4;
|
||
uint32_t temp_mem;
|
||
uc_mem_read(uc, esp_address, &temp_mem, sizeof(uint32_t));
|
||
lpMem = temp_mem;
|
||
}
|
||
|
||
// 释放内存
|
||
bool success = context->FreeBlock(lpMem);
|
||
|
||
printf(
|
||
"[*] HeapFree: Handle=0x%llx, Flags=0x%x, Address=0x%llx, Success=%d\n",
|
||
hHeap, dwFlags, lpMem, success);
|
||
|
||
// 返回操作是否成功
|
||
uint64_t result = success ? 1 : 0;
|
||
uc_reg_write(uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&result);
|
||
}
|
||
|
||
// 实现TlsGetValue API
|
||
auto Api_TlsGetValue(void* sandbox, uc_engine* uc, uint64_t address) -> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
uint32_t dwTlsIndex = 0;
|
||
uint64_t return_value = 0;
|
||
|
||
// 获取参数
|
||
if (context->GetPeInfo()->isX64) {
|
||
// x64: rcx = dwTlsIndex
|
||
uint64_t temp_index;
|
||
uc_reg_read(uc, UC_X86_REG_RCX, &temp_index);
|
||
dwTlsIndex = static_cast<uint32_t>(temp_index);
|
||
} else {
|
||
// x86: 从栈上读取参数
|
||
uint32_t esp_address = 0;
|
||
uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
|
||
esp_address += 0x4; // 跳过返回地址
|
||
uc_mem_read(uc, esp_address, &dwTlsIndex, sizeof(uint32_t));
|
||
}
|
||
|
||
// 检查索引是否有效（小于64）
|
||
if (dwTlsIndex < 64) {
|
||
if (context->GetPeInfo()->isX64) {
|
||
auto teb = context->GetTeb64();
|
||
// 检查槽是否已分配（不为nullptr）
|
||
if (teb->TlsSlots[dwTlsIndex] != (void*)0x1337ffffff) {
|
||
return_value =
|
||
reinterpret_cast<uint64_t>(teb->TlsSlots[dwTlsIndex]);
|
||
} else {
|
||
// 槽未分配，设置LastError
|
||
DWORD error = ERROR_INVALID_PARAMETER;
|
||
teb->LastErrorValue = error;
|
||
}
|
||
} else {
|
||
auto teb = context->GetTeb32();
|
||
// 检查槽是否已分配（不为0）
|
||
if (teb->TlsSlots[dwTlsIndex] != 0x1337) {
|
||
return_value = teb->TlsSlots[dwTlsIndex];
|
||
} else {
|
||
// 槽未分配，设置LastError
|
||
DWORD error = ERROR_INVALID_PARAMETER;
|
||
teb->LastErrorValue = error;
|
||
}
|
||
}
|
||
} else {
|
||
// 索引无效，设置LastError
|
||
DWORD error = ERROR_INVALID_PARAMETER;
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = error;
|
||
}
|
||
}
|
||
|
||
printf("[*] TlsGetValue: Index=0x%x, Value=0x%llx\n", dwTlsIndex,
|
||
return_value);
|
||
|
||
// 返回TLS槽中的值
|
||
uc_reg_write(uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&return_value);
|
||
}
|
||
|
||
auto Api_SetLastError(void* sandbox, uc_engine* uc, uint64_t address) -> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
uint32_t dwErrCode = 0;
|
||
|
||
// 获取参数
|
||
if (context->GetPeInfo()->isX64) {
|
||
// x64: rcx = dwErrCode
|
||
uint64_t temp_error;
|
||
uc_reg_read(uc, UC_X86_REG_RCX, &temp_error);
|
||
dwErrCode = static_cast<uint32_t>(temp_error);
|
||
} else {
|
||
// x86: 从栈上读取参数
|
||
uint32_t esp_address = 0;
|
||
uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
|
||
esp_address += 0x4; // 跳过返回地址
|
||
uc_mem_read(uc, esp_address, &dwErrCode, sizeof(uint32_t));
|
||
}
|
||
|
||
// 设置LastError值
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = dwErrCode;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = dwErrCode;
|
||
}
|
||
|
||
printf("[*] SetLastError: Error=0x%x\n", dwErrCode);
|
||
}
|
||
|
||
auto Api_EnterCriticalSection(void* sandbox, uc_engine* uc, uint64_t address)
|
||
-> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
uint64_t lpCriticalSection = 0;
|
||
|
||
// 获取参数
|
||
if (context->GetPeInfo()->isX64) {
|
||
// x64: rcx = lpCriticalSection
|
||
uc_reg_read(uc, UC_X86_REG_RCX, &lpCriticalSection);
|
||
} else {
|
||
// x86: 从栈上读取参数
|
||
uint32_t esp_address = 0;
|
||
uint32_t temp_cs = 0;
|
||
uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
|
||
esp_address += 0x4; // 跳过返回地址
|
||
uc_mem_read(uc, esp_address, &temp_cs, sizeof(uint32_t));
|
||
lpCriticalSection = temp_cs;
|
||
}
|
||
|
||
if (lpCriticalSection != 0) {
|
||
RTL_CRITICAL_SECTION cs;
|
||
uc_mem_read(uc, lpCriticalSection, &cs, sizeof(RTL_CRITICAL_SECTION));
|
||
|
||
// 获取当前线程ID
|
||
HANDLE currentThreadHandle = nullptr;
|
||
if (context->GetPeInfo()->isX64) {
|
||
currentThreadHandle =
|
||
(HANDLE)(ULONG_PTR)context->GetTeb64()->ClientId.UniqueThread;
|
||
} else {
|
||
currentThreadHandle =
|
||
(HANDLE)(ULONG_PTR)context->GetTeb32()->ClientId.UniqueThread;
|
||
}
|
||
|
||
// 如果当前线程已经拥有锁，增加递归计数
|
||
if (cs.OwningThread == currentThreadHandle) {
|
||
cs.RecursionCount++;
|
||
} else {
|
||
// 如果没有线程拥有锁，获取它
|
||
if (cs.LockCount == -1) {
|
||
cs.OwningThread = currentThreadHandle;
|
||
cs.RecursionCount = 1;
|
||
cs.LockCount = 0;
|
||
} else {
|
||
// 在实际情况下这里应该自旋等待，但在模拟环境中我们直接获取锁
|
||
cs.OwningThread = currentThreadHandle;
|
||
cs.RecursionCount = 1;
|
||
cs.LockCount++;
|
||
}
|
||
}
|
||
|
||
// 写回更新后的关键段结构
|
||
uc_mem_write(uc, lpCriticalSection, &cs, sizeof(RTL_CRITICAL_SECTION));
|
||
}
|
||
|
||
printf("[*] EnterCriticalSection: CS=0x%llx\n", lpCriticalSection);
|
||
}
|
||
|
||
auto Api_LeaveCriticalSection(void* sandbox, uc_engine* uc, uint64_t address)
|
||
-> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
uint64_t lpCriticalSection = 0;
|
||
|
||
// 获取参数
|
||
if (context->GetPeInfo()->isX64) {
|
||
// x64: rcx = lpCriticalSection
|
||
uc_reg_read(uc, UC_X86_REG_RCX, &lpCriticalSection);
|
||
} else {
|
||
// x86: 从栈上读取参数
|
||
uint32_t esp_address = 0;
|
||
uint32_t temp_cs = 0;
|
||
uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
|
||
esp_address += 0x4; // 跳过返回地址
|
||
uc_mem_read(uc, esp_address, &temp_cs, sizeof(uint32_t));
|
||
lpCriticalSection = temp_cs;
|
||
}
|
||
|
||
if (lpCriticalSection != 0) {
|
||
RTL_CRITICAL_SECTION cs;
|
||
uc_mem_read(uc, lpCriticalSection, &cs, sizeof(RTL_CRITICAL_SECTION));
|
||
|
||
// 获取当前线程ID
|
||
HANDLE currentThreadHandle = nullptr;
|
||
if (context->GetPeInfo()->isX64) {
|
||
currentThreadHandle =
|
||
(HANDLE)(ULONG_PTR)context->GetTeb64()->ClientId.UniqueThread;
|
||
} else {
|
||
currentThreadHandle =
|
||
(HANDLE)(ULONG_PTR)context->GetTeb32()->ClientId.UniqueThread;
|
||
}
|
||
|
||
// 检查当前线程是否拥有锁
|
||
if (cs.OwningThread == currentThreadHandle) {
|
||
cs.RecursionCount--;
|
||
if (cs.RecursionCount == 0) {
|
||
// 完全释放锁
|
||
cs.OwningThread = nullptr;
|
||
cs.LockCount = -1;
|
||
}
|
||
|
||
// 写回更新后的关键段结构
|
||
uc_mem_write(uc, lpCriticalSection, &cs,
|
||
sizeof(RTL_CRITICAL_SECTION));
|
||
}
|
||
}
|
||
|
||
printf("[*] LeaveCriticalSection: CS=0x%llx\n", lpCriticalSection);
|
||
}
|
||
|
||
auto Api_GetStartupInfoW(void* sandbox, uc_engine* uc, uint64_t address)
|
||
-> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
uint64_t lpStartupInfo = 0;
|
||
|
||
// 获取参数
|
||
if (context->GetPeInfo()->isX64) {
|
||
// x64: rcx = lpStartupInfo
|
||
uc_reg_read(uc, UC_X86_REG_RCX, &lpStartupInfo);
|
||
} else {
|
||
// x86: 从栈上读取参数
|
||
uint32_t esp_address = 0;
|
||
uint32_t temp_info = 0;
|
||
uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
|
||
esp_address += 0x4; // 跳过返回地址
|
||
uc_mem_read(uc, esp_address, &temp_info, sizeof(uint32_t));
|
||
lpStartupInfo = temp_info;
|
||
}
|
||
|
||
if (lpStartupInfo != 0) {
|
||
// 创建一个默认的 STARTUPINFOW 结构
|
||
STARTUPINFOW si = {0};
|
||
si.cb = sizeof(STARTUPINFOW);
|
||
si.dwFlags = STARTF_USESHOWWINDOW;
|
||
si.wShowWindow = SW_SHOWNORMAL;
|
||
si.lpDesktop = nullptr;
|
||
si.lpTitle = nullptr;
|
||
si.dwX = 0;
|
||
si.dwY = 0;
|
||
si.dwXSize = 0;
|
||
si.dwYSize = 0;
|
||
si.dwXCountChars = 0;
|
||
si.dwYCountChars = 0;
|
||
si.dwFillAttribute = 0;
|
||
si.cbReserved2 = 0;
|
||
si.lpReserved2 = nullptr;
|
||
si.hStdInput = nullptr;
|
||
si.hStdOutput = nullptr;
|
||
si.hStdError = nullptr;
|
||
|
||
// 写入结构到目标内存
|
||
uc_mem_write(uc, lpStartupInfo, &si, sizeof(STARTUPINFOW));
|
||
}
|
||
|
||
printf("[*] GetStartupInfoW: lpStartupInfo=0x%llx\n", lpStartupInfo);
|
||
}
|
||
|
||
// 实现 GetStdHandle API
|
||
auto Api_GetStdHandle(void* sandbox, uc_engine* uc, uint64_t address) -> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
int32_t nStdHandle = 0;
|
||
HANDLE handle = INVALID_HANDLE_VALUE;
|
||
|
||
// 获取参数
|
||
if (context->GetPeInfo()->isX64) {
|
||
// x64: rcx = nStdHandle
|
||
uint64_t temp_handle;
|
||
uc_reg_read(uc, UC_X86_REG_RCX, &temp_handle);
|
||
nStdHandle = static_cast<int32_t>(temp_handle);
|
||
} else {
|
||
// x86: 从栈上读取参数
|
||
uint32_t esp_address = 0;
|
||
uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
|
||
esp_address += 0x4; // 跳过返回地址
|
||
uc_mem_read(uc, esp_address, &nStdHandle, sizeof(int32_t));
|
||
}
|
||
|
||
// 根据请求的标准句柄类型返回相应的句柄
|
||
switch ((unsigned long)nStdHandle) {
|
||
case STD_INPUT_HANDLE: // -10
|
||
handle = reinterpret_cast<HANDLE>(0x1000); // 模拟标准输入句柄
|
||
break;
|
||
case STD_OUTPUT_HANDLE: // -11
|
||
handle = reinterpret_cast<HANDLE>(0x2000); // 模拟标准输出句柄
|
||
break; // End of Selection
|
||
break;
|
||
case STD_ERROR_HANDLE: // -12
|
||
handle = reinterpret_cast<HANDLE>(0x3000); // 模拟标准错误句柄
|
||
break;
|
||
default:
|
||
handle = INVALID_HANDLE_VALUE;
|
||
// 设置错误码
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = ERROR_INVALID_PARAMETER;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = ERROR_INVALID_PARAMETER;
|
||
}
|
||
break;
|
||
}
|
||
|
||
printf("[*] GetStdHandle: Type=%d, Handle=0x%p\n", nStdHandle, handle);
|
||
|
||
// 返回句柄值
|
||
uint64_t return_value = reinterpret_cast<uint64_t>(handle);
|
||
uc_reg_write(uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&return_value);
|
||
}
|
||
|
||
// 实现 GetFileType API
|
||
auto Api_GetFileType(void* sandbox, uc_engine* uc, uint64_t address) -> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
HANDLE hFile = nullptr;
|
||
|
||
// 获取参数
|
||
if (context->GetPeInfo()->isX64) {
|
||
// x64: rcx = hFile
|
||
uint64_t temp_handle;
|
||
uc_reg_read(uc, UC_X86_REG_RCX, &temp_handle);
|
||
hFile = reinterpret_cast<HANDLE>(temp_handle);
|
||
} else {
|
||
// x86: 从栈上读取参数
|
||
uint32_t esp_address = 0;
|
||
uint32_t temp_handle = 0;
|
||
uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
|
||
esp_address += 0x4; // 跳过返回地址
|
||
uc_mem_read(uc, esp_address, &temp_handle, sizeof(uint32_t));
|
||
hFile = reinterpret_cast<HANDLE>(static_cast<uint64_t>(temp_handle));
|
||
}
|
||
|
||
DWORD file_type = FILE_TYPE_UNKNOWN;
|
||
|
||
// 根据标准句柄类型返回相应的文件类型
|
||
if (hFile == reinterpret_cast<HANDLE>(0x1000) || // STD_INPUT_HANDLE
|
||
hFile == reinterpret_cast<HANDLE>(0x2000) || // STD_OUTPUT_HANDLE
|
||
hFile == reinterpret_cast<HANDLE>(0x3000)) { // STD_ERROR_HANDLE
|
||
file_type = FILE_TYPE_CHAR; // 控制台句柄通常是字符设备
|
||
} else {
|
||
// 对于无效句柄，设置错误码
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = ERROR_INVALID_HANDLE;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = ERROR_INVALID_HANDLE;
|
||
}
|
||
file_type = FILE_TYPE_UNKNOWN;
|
||
}
|
||
|
||
printf("[*] GetFileType: Handle=0x%p, Type=0x%x\n", hFile, file_type);
|
||
|
||
// 返回文件类型
|
||
uc_reg_write(uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&file_type);
|
||
}
|
||
|
||
// 实现 GetCommandLineA API
|
||
auto Api_GetCommandLineA(void* sandbox, uc_engine* uc, uint64_t address)
|
||
-> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
printf("[*] GetCommandLineA: CommandLine=%s\n", context->GetCommandLine());
|
||
|
||
// 返回命令行字符串的地址
|
||
uint64_t return_value = context->GetCommandLineAddress();
|
||
uc_reg_write(uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&return_value);
|
||
}
|
||
|
||
// 实现 GetCommandLineW API
|
||
auto Api_GetCommandLineW(void* sandbox, uc_engine* uc, uint64_t address)
|
||
-> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
printf("[*] GetCommandLineW: CommandLine=%s\n", context->GetCommandLine());
|
||
|
||
// 返回宽字符命令行字符串的地址
|
||
uint64_t return_value = context->GetCommandLineWAddress();
|
||
uc_reg_write(uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&return_value);
|
||
}
|
||
|
||
// 实现 GetACP API
|
||
auto Api_GetACP(void* sandbox, uc_engine* uc, uint64_t address) -> void {
|
||
// 返回默认的 ANSI 代码页 (936 - 简体中文)
|
||
uint32_t codepage = 936;
|
||
printf("[*] GetACP: CodePage=%u\n", codepage);
|
||
|
||
// 返回代码页值
|
||
uc_reg_write(uc,
|
||
static_cast<Sandbox*>(sandbox)->GetPeInfo()->isX64
|
||
? UC_X86_REG_RAX
|
||
: UC_X86_REG_EAX,
|
||
&codepage);
|
||
}
|
||
|
||
// 实现 GetCPInfo API
|
||
auto Api_GetCPInfo(void* sandbox, uc_engine* uc, uint64_t address) -> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
uint32_t codePage = 0;
|
||
uint64_t lpCPInfo = 0;
|
||
BOOL success = FALSE;
|
||
|
||
// 获取参数
|
||
if (context->GetPeInfo()->isX64) {
|
||
// x64: rcx = CodePage, rdx = lpCPInfo
|
||
uint64_t temp_codepage;
|
||
uc_reg_read(uc, UC_X86_REG_RCX, &temp_codepage);
|
||
codePage = static_cast<uint32_t>(temp_codepage);
|
||
uc_reg_read(uc, UC_X86_REG_RDX, &lpCPInfo);
|
||
} else {
|
||
// x86: 从栈上读取参数
|
||
uint32_t esp_address = 0;
|
||
uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
|
||
esp_address += 0x4; // 跳过返回地址
|
||
uc_mem_read(uc, esp_address, &codePage, sizeof(uint32_t));
|
||
esp_address += 0x4;
|
||
uint32_t temp_cpinfo;
|
||
uc_mem_read(uc, esp_address, &temp_cpinfo, sizeof(uint32_t));
|
||
lpCPInfo = temp_cpinfo;
|
||
}
|
||
|
||
if (lpCPInfo != 0) {
|
||
// 创建 CPINFO 结构
|
||
CPINFO cpInfo = {0};
|
||
|
||
// 根据代码页设置相应的信息
|
||
switch (codePage) {
|
||
case 936: // 简体中文 GBK
|
||
cpInfo.MaxCharSize = 2; // 最大字符大小为2字节
|
||
cpInfo.DefaultChar[0] = '?'; // 默认替换字符
|
||
cpInfo.DefaultChar[1] = '\0';
|
||
cpInfo.LeadByte[0] = 0x81; // 前导字节范围
|
||
cpInfo.LeadByte[1] = 0xFE;
|
||
cpInfo.LeadByte[2] = 0; // 结束标记
|
||
success = TRUE;
|
||
break;
|
||
|
||
case 437: // US ASCII
|
||
case 1252: // Western European
|
||
cpInfo.MaxCharSize = 1; // 单字节字符集
|
||
cpInfo.DefaultChar[0] = '?';
|
||
cpInfo.DefaultChar[1] = '\0';
|
||
cpInfo.LeadByte[0] = 0; // 无前导字节
|
||
success = TRUE;
|
||
break;
|
||
|
||
default:
|
||
// 不支持的代码页
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue =
|
||
ERROR_INVALID_PARAMETER;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue =
|
||
ERROR_INVALID_PARAMETER;
|
||
}
|
||
success = FALSE;
|
||
break;
|
||
}
|
||
|
||
if (success) {
|
||
// 写入 CPINFO 结构到目标内存
|
||
uc_mem_write(uc, lpCPInfo, &cpInfo, sizeof(CPINFO));
|
||
}
|
||
} else {
|
||
// 无效的指针参数
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = ERROR_INVALID_PARAMETER;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = ERROR_INVALID_PARAMETER;
|
||
}
|
||
success = FALSE;
|
||
}
|
||
|
||
printf("[*] GetCPInfo: CodePage=%u, lpCPInfo=0x%llx, Success=%d\n",
|
||
codePage, lpCPInfo, success);
|
||
|
||
// 返回操作是否成功
|
||
uc_reg_write(uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&success);
|
||
}
|
||
|
||
auto Api_MultiByteToWideChar(void* sandbox, uc_engine* uc, uint64_t address)
|
||
-> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
uint32_t CodePage = 0;
|
||
uint32_t dwFlags = 0;
|
||
uint64_t lpMultiByteStr = 0;
|
||
int32_t cbMultiByte = 0;
|
||
uint64_t lpWideCharStr = 0;
|
||
int32_t cchWideChar = 0;
|
||
|
||
// 获取参数
|
||
if (context->GetPeInfo()->isX64) {
|
||
uint64_t temp_codepage = 0;
|
||
uint64_t temp_flags = 0;
|
||
uint64_t temp_multibyte = 0;
|
||
uint64_t temp_cbmultibyte = 0;
|
||
|
||
// x64: rcx, rdx, r8, r9, [rsp+0x28], [rsp+0x30]
|
||
uc_reg_read(uc, UC_X86_REG_RCX, &temp_codepage);
|
||
uc_reg_read(uc, UC_X86_REG_RDX, &temp_flags);
|
||
uc_reg_read(uc, UC_X86_REG_R8, &temp_multibyte);
|
||
uc_reg_read(uc, UC_X86_REG_R9, &temp_cbmultibyte);
|
||
|
||
CodePage = static_cast<uint32_t>(temp_codepage);
|
||
dwFlags = static_cast<uint32_t>(temp_flags);
|
||
lpMultiByteStr = temp_multibyte;
|
||
cbMultiByte = static_cast<int32_t>(temp_cbmultibyte);
|
||
|
||
// 获取栈上的参数
|
||
uint64_t rsp = 0;
|
||
uc_reg_read(uc, UC_X86_REG_RSP, &rsp);
|
||
|
||
// 为了确保安全访问，先验证栈地址的有效性
|
||
if (rsp < 0x8000000000000000 || rsp + 0x40 > 0x8000000000010000) {
|
||
// 无效的栈地址
|
||
DWORD error = ERROR_INVALID_PARAMETER;
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
int result = 0;
|
||
uc_reg_write(uc, UC_X86_REG_RAX, &result);
|
||
return;
|
||
}
|
||
|
||
// 读取栈上的参数
|
||
uint64_t shadow_space = 0x20; // x64调用约定中的shadow space
|
||
uc_mem_read(uc, rsp + shadow_space + 0x8, &lpWideCharStr,
|
||
sizeof(uint64_t));
|
||
uc_mem_read(uc, rsp + shadow_space + 0x10, &cchWideChar,
|
||
sizeof(int32_t));
|
||
} else {
|
||
// x86: 从栈上读取参数
|
||
uint32_t esp_address = 0;
|
||
uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
|
||
esp_address += 0x4; // 跳过返回地址
|
||
|
||
uc_mem_read(uc, esp_address, &CodePage, sizeof(uint32_t));
|
||
uc_mem_read(uc, esp_address + 0x4, &dwFlags, sizeof(uint32_t));
|
||
uc_mem_read(uc, esp_address + 0x8, &lpMultiByteStr, sizeof(uint32_t));
|
||
uc_mem_read(uc, esp_address + 0xC, &cbMultiByte, sizeof(int32_t));
|
||
uc_mem_read(uc, esp_address + 0x10, &lpWideCharStr, sizeof(uint32_t));
|
||
uc_mem_read(uc, esp_address + 0x14, &cchWideChar, sizeof(int32_t));
|
||
}
|
||
|
||
// 验证参数
|
||
if (lpMultiByteStr == 0 || (lpWideCharStr == 0 && cchWideChar != 0)) {
|
||
DWORD error = ERROR_INVALID_PARAMETER;
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = error;
|
||
}
|
||
int result = 0;
|
||
uc_reg_write(
|
||
uc, context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&result);
|
||
return;
|
||
}
|
||
|
||
// 读取源字符串
|
||
std::vector<char> srcBuffer;
|
||
if (cbMultiByte == -1) {
|
||
// 如果长度为-1,则源字符串以null结尾
|
||
char ch = 0;
|
||
size_t len = 0;
|
||
do {
|
||
if (uc_mem_read(uc, lpMultiByteStr + len, &ch, 1) != UC_ERR_OK) {
|
||
break;
|
||
}
|
||
srcBuffer.push_back(ch);
|
||
len++;
|
||
} while (ch != 0 && len < MAX_PATH); // 添加长度限制防止无限循环
|
||
|
||
if (len >= MAX_PATH) {
|
||
// 设置错误码
|
||
DWORD error = ERROR_INSUFFICIENT_BUFFER;
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = error;
|
||
}
|
||
int result = 0;
|
||
uc_reg_write(
|
||
uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&result);
|
||
return;
|
||
}
|
||
|
||
cbMultiByte = static_cast<int32_t>(len);
|
||
} else if (cbMultiByte > 0) {
|
||
// 使用指定长度，但添加安全检查
|
||
if (cbMultiByte > MAX_PATH) {
|
||
DWORD error = ERROR_INSUFFICIENT_BUFFER;
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = error;
|
||
}
|
||
int result = 0;
|
||
uc_reg_write(
|
||
uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&result);
|
||
return;
|
||
}
|
||
|
||
srcBuffer.resize(cbMultiByte);
|
||
if (uc_mem_read(uc, lpMultiByteStr, srcBuffer.data(), cbMultiByte) !=
|
||
UC_ERR_OK) {
|
||
DWORD error = ERROR_INVALID_PARAMETER;
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = error;
|
||
}
|
||
int result = 0;
|
||
uc_reg_write(
|
||
uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&result);
|
||
return;
|
||
}
|
||
} else {
|
||
// 无效的输入长度
|
||
DWORD error = ERROR_INVALID_PARAMETER;
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = error;
|
||
}
|
||
int result = 0;
|
||
uc_reg_write(
|
||
uc, context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&result);
|
||
return;
|
||
}
|
||
|
||
// 计算所需的宽字符缓冲区大小
|
||
int result = MultiByteToWideChar(CodePage, dwFlags, srcBuffer.data(),
|
||
cbMultiByte, nullptr, 0);
|
||
|
||
if (result == 0) {
|
||
// 转换失败，获取错误码
|
||
DWORD error = GetLastError();
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = error;
|
||
}
|
||
uc_reg_write(
|
||
uc, context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&result);
|
||
return;
|
||
}
|
||
|
||
// 如果只是查询所需缓冲区大小
|
||
if (lpWideCharStr == 0 || cchWideChar == 0) {
|
||
uc_reg_write(
|
||
uc, context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&result);
|
||
return;
|
||
}
|
||
|
||
// 检查目标缓冲区大小是否足够
|
||
if (cchWideChar < result) {
|
||
DWORD error = ERROR_INSUFFICIENT_BUFFER;
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = error;
|
||
}
|
||
result = 0;
|
||
uc_reg_write(
|
||
uc, context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&result);
|
||
return;
|
||
}
|
||
|
||
// 执行实际转换
|
||
std::vector<wchar_t> wideBuffer(result);
|
||
if (MultiByteToWideChar(CodePage, dwFlags, srcBuffer.data(), cbMultiByte,
|
||
wideBuffer.data(), result) > 0) {
|
||
// 写入转换后的字符串到目标内存
|
||
if (uc_mem_write(uc, lpWideCharStr, wideBuffer.data(),
|
||
result * sizeof(wchar_t)) != UC_ERR_OK) {
|
||
DWORD error = ERROR_INVALID_PARAMETER;
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = error;
|
||
}
|
||
result = 0;
|
||
}
|
||
} else {
|
||
// 转换失败
|
||
DWORD error = GetLastError();
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = error;
|
||
}
|
||
result = 0;
|
||
}
|
||
|
||
printf(
|
||
"[*] MultiByteToWideChar: CodePage=%u, Flags=0x%x, Input=%p, "
|
||
"InputLen=%d, Output=%p, OutputLen=%d, Result=%d\n",
|
||
CodePage, dwFlags, (void*)lpMultiByteStr, cbMultiByte,
|
||
(void*)lpWideCharStr, cchWideChar, result);
|
||
|
||
uc_reg_write(uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&result);
|
||
}
|
||
|
||
auto Sandbox::CreateHeapSegment(uint64_t base, size_t size) -> HeapSegment* {
|
||
auto segment = new HeapSegment();
|
||
segment->base = base;
|
||
segment->size = size;
|
||
|
||
// 创建初始空闲块
|
||
auto block = new HeapBlock();
|
||
block->address = base;
|
||
block->size = size;
|
||
block->is_free = true;
|
||
block->next = nullptr;
|
||
block->prev = nullptr;
|
||
|
||
segment->blocks = block;
|
||
return segment;
|
||
}
|
||
|
||
auto Sandbox::AllocateFromSegment(HeapSegment* segment, size_t size)
|
||
-> uint64_t {
|
||
// 对齐大小到16字节
|
||
size = (size + 15) & ~15;
|
||
|
||
// 查找合适的空闲块
|
||
HeapBlock* current = segment->blocks;
|
||
while (current != nullptr) {
|
||
if (current->is_free && current->size >= size) {
|
||
// 如果块太大，分割它
|
||
if (current->size > size + 32) { // 32字节为最小块大小
|
||
SplitBlock(current, size);
|
||
}
|
||
|
||
current->is_free = false;
|
||
return current->address;
|
||
}
|
||
current = current->next;
|
||
}
|
||
|
||
return 0; // 分配失败
|
||
}
|
||
|
||
auto Api_CloseHandle(void* sandbox, uc_engine* uc, uint64_t address) -> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
uint64_t handle = 0;
|
||
|
||
// 获取参数
|
||
if (context->GetPeInfo()->isX64) {
|
||
// x64: rcx = handle
|
||
uc_reg_read(uc, UC_X86_REG_RCX, &handle);
|
||
} else {
|
||
// x86: 从栈上读取参数
|
||
uint32_t esp = 0;
|
||
uc_reg_read(uc, UC_X86_REG_ESP, &esp);
|
||
esp += 0x4; // 跳过返回地址
|
||
uint32_t temp_handle;
|
||
uc_mem_read(uc, esp, &temp_handle, sizeof(uint32_t));
|
||
handle = temp_handle;
|
||
}
|
||
|
||
bool success = true;
|
||
|
||
// 如果是进程快照句柄 (0x1337)，清理进程枚举状态
|
||
if (handle == 0x1337) {
|
||
auto it = context->process_enum_state.find(handle);
|
||
if (it != context->process_enum_state.end()) {
|
||
context->process_enum_state.erase(it);
|
||
}
|
||
}
|
||
// 其他类型的句柄也返回成功
|
||
// 实际应用中可能需要根据句柄类型进行不同的处理
|
||
|
||
printf("[*] CloseHandle: Handle=0x%llx, Success=%d\n", handle, success);
|
||
|
||
// 设置返回值
|
||
uint64_t result = success ? 1 : 0;
|
||
if (context->GetPeInfo()->isX64) {
|
||
uc_reg_write(uc, UC_X86_REG_RAX, &result);
|
||
} else {
|
||
uint32_t result32 = static_cast<uint32_t>(result);
|
||
uc_reg_write(uc, UC_X86_REG_EAX, &result32);
|
||
}
|
||
|
||
// 设置错误码
|
||
DWORD error = success ? 0 : ERROR_INVALID_HANDLE;
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = error;
|
||
}
|
||
}
|
||
|
||
// 添加RtlFormatCurrentUserKeyPath API实现
|
||
auto Api_RtlFormatCurrentUserKeyPath(void* sandbox, uc_engine* uc,
|
||
uint64_t address) -> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
uint64_t keyPathBuffer = 0;
|
||
|
||
// 获取参数
|
||
if (context->GetPeInfo()->isX64) {
|
||
// x64: rcx = KeyPathBuffer
|
||
uc_reg_read(uc, UC_X86_REG_RCX, &keyPathBuffer);
|
||
} else {
|
||
// x86: 从栈上读取参数
|
||
uint32_t esp_address = 0;
|
||
uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
|
||
esp_address += 0x4; // 跳过返回地址
|
||
uint32_t temp_buffer;
|
||
uc_mem_read(uc, esp_address, &temp_buffer, sizeof(uint32_t));
|
||
keyPathBuffer = temp_buffer;
|
||
}
|
||
|
||
// 构造当前用户的注册表路径
|
||
// 同时在这里实现查询MCP服务器的功能
|
||
wchar_t userKeyPath[256] =
|
||
L"\\Registry\\User\\S-1-5-21-1234567890-1234567890-1234567890-1001";
|
||
|
||
// 模拟查询MCP服务器，这里可以根据需要实现实际的服务器查询
|
||
// 例如可以修改userKeyPath或在日志中记录查询操作
|
||
printf("[*] RtlFormatCurrentUserKeyPath: 正在查询MCP服务器获取用户SID\n");
|
||
|
||
// 将路径写入到提供的缓冲区
|
||
if (keyPathBuffer != 0) {
|
||
uc_mem_write(uc, keyPathBuffer, userKeyPath,
|
||
(wcslen(userKeyPath) + 1) * sizeof(wchar_t));
|
||
}
|
||
|
||
// 返回NTSTATUS成功代码 (0x00000000 = STATUS_SUCCESS)
|
||
uint64_t status = 0;
|
||
uc_reg_write(uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&status);
|
||
|
||
printf("[*] RtlFormatCurrentUserKeyPath: Buffer=0x%llx, Path=%ls\n",
|
||
keyPathBuffer, userKeyPath);
|
||
}
|
||
|
||
// 添加FlsSetValue API实现
|
||
auto Api_FlsSetValue(void* sandbox, uc_engine* uc, uint64_t address) -> void {
|
||
auto context = static_cast<Sandbox*>(sandbox);
|
||
uint64_t dwFlsIndex = 0;
|
||
uint64_t lpFlsData = 0;
|
||
|
||
// 获取参数
|
||
if (context->GetPeInfo()->isX64) {
|
||
// x64: rcx = dwFlsIndex, rdx = lpFlsData
|
||
uc_reg_read(uc, UC_X86_REG_RCX, &dwFlsIndex);
|
||
uc_reg_read(uc, UC_X86_REG_RDX, &lpFlsData);
|
||
} else {
|
||
// x86: 从栈上读取参数
|
||
uint32_t esp_address = 0;
|
||
uc_reg_read(uc, UC_X86_REG_ESP, &esp_address);
|
||
esp_address += 0x4; // 跳过返回地址
|
||
uint32_t temp_index;
|
||
uint32_t temp_data;
|
||
uc_mem_read(uc, esp_address, &temp_index, sizeof(uint32_t));
|
||
uc_mem_read(uc, esp_address + 0x4, &temp_data, sizeof(uint32_t));
|
||
dwFlsIndex = temp_index;
|
||
lpFlsData = temp_data;
|
||
}
|
||
|
||
// 模拟FLS存储操作，类似于TLS存储
|
||
bool success = false;
|
||
if (dwFlsIndex < 64) { // 使用与TLS相同的槽位大小
|
||
// 存储数据到模拟的FLS槽中（复用TLS槽）
|
||
if (context->GetPeInfo()->isX64) {
|
||
auto teb = context->GetTeb64();
|
||
if (teb->TlsSlots[dwFlsIndex] != (void*)0x1337ffffff) {
|
||
teb->TlsSlots[dwFlsIndex] = (void*)lpFlsData;
|
||
success = true;
|
||
}
|
||
} else {
|
||
auto teb = context->GetTeb32();
|
||
if (teb->TlsSlots[dwFlsIndex] != 0x1337) {
|
||
teb->TlsSlots[dwFlsIndex] = static_cast<uint32_t>(lpFlsData);
|
||
success = true;
|
||
}
|
||
}
|
||
}
|
||
|
||
printf("[*] FlsSetValue: Index=%llu, Data=0x%llx, Success=%d\n", dwFlsIndex,
|
||
lpFlsData, success);
|
||
|
||
// 设置返回值
|
||
uint64_t result = success ? 1 : 0;
|
||
uc_reg_write(uc,
|
||
context->GetPeInfo()->isX64 ? UC_X86_REG_RAX : UC_X86_REG_EAX,
|
||
&result);
|
||
|
||
// 如果失败，设置错误码
|
||
if (!success) {
|
||
DWORD error = ERROR_INVALID_PARAMETER;
|
||
if (context->GetPeInfo()->isX64) {
|
||
context->GetTeb64()->LastErrorValue = error;
|
||
} else {
|
||
context->GetTeb32()->LastErrorValue = error;
|
||
}
|
||
}
|
||
}
|