817 lines
30 KiB
C++
817 lines
30 KiB
C++
#include "sandbox.h"
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#include "sandbox_callbacks.h"
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#include "sandbox_api_com.h"
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// 在文件开头添加AllocateMemory函数的声明
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auto Sandbox::AllocateMemory(size_t size) -> uint64_t {
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// 使用一个简单的内存分配策略
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static uint64_t next_address = 0x60000000; // 起始地址
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uint64_t allocated_address = next_address;
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// 对齐到4KB
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size = (size + 0xFFF) & ~0xFFF;
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// 分配内存
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uc_err err = uc_mem_map(m_ucEngine, allocated_address, size, UC_PROT_ALL);
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if (err != UC_ERR_OK) {
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printf("[!] Failed to allocate memory at 0x%llx: %u\n",
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allocated_address, err);
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return 0;
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}
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// 更新下一个可用地址
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next_address += size + 0x1000; // 添加一个页面的间隔
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return allocated_address;
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}
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class ImportResolver : public peconv::t_function_resolver {
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public:
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explicit ImportResolver(std::map<std::string, uint64_t> context)
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: _functionMap(std::move(context)) {}
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FARPROC resolve_func(LPSTR libName, LPSTR funcName) override {
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return reinterpret_cast<FARPROC>(_functionMap[std::string(funcName)]);
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}
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private:
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std::map<std::string, uint64_t> _functionMap;
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};
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class cListImportNames : public peconv::ImportThunksCallback {
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public:
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cListImportNames(
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BYTE* _modulePtr, size_t _moduleSize,
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std::vector<std::shared_ptr<moudle_import>>& name_to_addr,
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std::vector<std::shared_ptr<moudle_import_ordinal>>& name_to_ordinal)
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: ImportThunksCallback(_modulePtr, _moduleSize),
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nameToAddr(name_to_addr),
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ordinalImportFunc(name_to_ordinal) {}
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virtual bool processThunks(LPSTR lib_name, ULONG_PTR origFirstThunkPtr,
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ULONG_PTR firstThunkPtr) {
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if (this->is64b) {
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IMAGE_THUNK_DATA64* desc =
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reinterpret_cast<IMAGE_THUNK_DATA64*>(origFirstThunkPtr);
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ULONGLONG* call_via = reinterpret_cast<ULONGLONG*>(firstThunkPtr);
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return processThunks_tpl<ULONGLONG, IMAGE_THUNK_DATA64>(
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lib_name, desc, call_via, IMAGE_ORDINAL_FLAG64);
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}
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IMAGE_THUNK_DATA32* desc =
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reinterpret_cast<IMAGE_THUNK_DATA32*>(origFirstThunkPtr);
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DWORD* call_via = reinterpret_cast<DWORD*>(firstThunkPtr);
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return processThunks_tpl<DWORD, IMAGE_THUNK_DATA32>(
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lib_name, desc, call_via, IMAGE_ORDINAL_FLAG32);
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}
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protected:
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template <typename T_FIELD, typename T_IMAGE_THUNK_DATA>
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bool processThunks_tpl(LPSTR lib_name, T_IMAGE_THUNK_DATA* desc,
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T_FIELD* call_via, T_FIELD ordinal_flag) {
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DWORD call_via_rva = static_cast<DWORD>((ULONG_PTR)call_via -
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(ULONG_PTR)this->modulePtr);
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LPSTR func_name = NULL;
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if ((desc->u1.Ordinal & ordinal_flag) == 0) {
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PIMAGE_IMPORT_BY_NAME by_name =
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(PIMAGE_IMPORT_BY_NAME)((ULONGLONG)modulePtr +
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desc->u1.AddressOfData);
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func_name = reinterpret_cast<LPSTR>(by_name->Name);
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std::string fuck_up_api_ms = lib_name;
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if (fuck_up_api_ms.find("api-ms-") != std::string::npos) {
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fuck_up_api_ms = getDllNameFromApiSetMap(fuck_up_api_ms);
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if (fuck_up_api_ms.size() <= 1) __debugbreak();
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}
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auto import_data = std::make_shared<moudle_import>();
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memcpy(import_data->name, func_name, strlen(func_name));
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memcpy(import_data->dll_name, fuck_up_api_ms.c_str(),
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fuck_up_api_ms.size());
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import_data->function_address = call_via_rva;
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import_data->is_delayed_import = false;
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nameToAddr.push_back(import_data);
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}
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else {
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auto importFunc = std::make_shared<moudle_import_ordinal>();
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T_FIELD raw_ordinal = desc->u1.Ordinal & (~ordinal_flag);
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importFunc->dll_name = lib_name;
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importFunc->function_address = call_via_rva;
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importFunc->ordinal = raw_ordinal;
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ordinalImportFunc.push_back(importFunc);
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}
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return true;
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}
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std::vector<std::shared_ptr<moudle_import>>& nameToAddr;
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std::vector<std::shared_ptr<moudle_import_ordinal>>& ordinalImportFunc;
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};
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class cFixImprot : public peconv::t_function_resolver {
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public:
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// 构造函数接收Sandbox实例的引用
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explicit cFixImprot(Sandbox* sandbox) : m_sandbox(sandbox) {}
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// 实现导入函数解析
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virtual FARPROC resolve_func(LPSTR lib_name, LPSTR func_name) override {
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// 遍历所有已加载的模块
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for (const auto& module : m_sandbox->m_moduleList) {
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// 检查模块名是否匹配
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if (module->name == std::string(lib_name) == 0) {
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// 遍历该模块的导出函数
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for (const auto& exp : module->export_function) {
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// 检查函数名是否匹配
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if (strcmp(exp->name, func_name) == 0) {
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auto newBase = reinterpret_cast<FARPROC>(
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module->base + exp->function_address);
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#ifdef LOG_LEVEL > 2
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printf("fix import: %s => %llx \n", func_name, newBase);
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// 返回在模拟器中的虚拟地址
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#endif
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return newBase;
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}
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}
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}
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}
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// 如果没有找到精确匹配的模块名，尝试在所有模块中查找该函数
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for (const auto& module : m_sandbox->m_moduleList) {
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for (const auto& exp : module->export_function) {
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auto newBase = reinterpret_cast<FARPROC>(
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module->base + exp->function_address);
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// 检查函数名是否匹配
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if (strcmp(exp->name, func_name) == 0) {
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#ifdef LOG_LEVEL > 1
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printf("fix import (fallback): %s found in %s => %llx \n",
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func_name, module->name, newBase);
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// 返回在模拟器中的虚拟地址
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#endif
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return newBase;
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}
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//序号导出,非常癌症的修复.
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if (std::string(lib_name) == module->name) {
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int ordinalNum = std::atoi(func_name);
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if (exp->ordinal == ordinalNum) {
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auto newBase = reinterpret_cast<FARPROC>(
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module->base + exp->function_address);
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#ifdef LOG_LEVEL > 1
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printf("fix import (ordianal): %s found in [%s]%s => %llx \n",
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func_name, module->name, exp->name, newBase);
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// 返回在模拟器中的虚拟地址
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#endif // LOG_LEVEL > 1
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return newBase;
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}
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}
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}
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}
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printf("Warning: Could not resolve import: %s from library: %s\n",
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func_name, lib_name);
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//__debugbreak();
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return nullptr;
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}
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private:
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Sandbox* m_sandbox; // Sandbox实例的指针
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};
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Sandbox::Sandbox() {
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m_ucEngine = nullptr;
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m_peInfo = nullptr;
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m_nextWfpEngineHandle = (HANDLE)0x1000; // 初始化WFP引擎句柄
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m_lastImpRead = {0, 0};
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}
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Sandbox::~Sandbox() {
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// 清理WFP引擎资源
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for (auto& pair : m_wfpEngines) {
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delete pair.second;
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}
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m_wfpEngines.clear();
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// 清理文件句柄资源
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for (auto& pair : m_fileHandles) {
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delete pair.second;
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}
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m_fileHandles.clear();
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// 1. 先清理高层资源
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m_crossSectionExecution.clear();
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envStrings.clear();
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api_map.clear();
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m_moduleList.clear();
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m_impFuncDict.clear();
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m_exportFuncDict.clear();
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// 2. 清理内存映射
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if (m_ucEngine) {
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uc_close(m_ucEngine);
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m_ucEngine = nullptr;
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}
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// 3. 清理堆内存
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for (auto& [address, segment] : m_heapSegments) {
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HeapBlock* current = segment->blocks;
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while (current) {
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HeapBlock* next = current->next;
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delete current;
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current = next;
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}
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delete segment;
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}
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m_heapSegments.clear();
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// 4. 清理模块
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for (auto module : m_moduleList) {
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//为0的是主程序.
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if (module->mapped_address != 0) {
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peconv::free_pe_buffer((peconv::ALIGNED_BUF)module.get()->mapped_address, module.get()->mapped_size);
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}
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}
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// 5. 最后清理底层资源
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if (m_csHandle) {
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cs_close(&m_csHandle);
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}
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}
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auto Sandbox::PushModuleToVM(const char* dllName, uint64_t moduleBase, uint64_t mappedSize) -> void {
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for (auto module : m_moduleList) {
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if (module->real_base == moduleBase) {
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printf("skip module name: %s (already loaded)\n", module->name);
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return;
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}
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}
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if (m_usedModuleBase == 0) {
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m_usedModuleBase = DLL_MODULE_BASE;
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}
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// 创建新模块
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auto newModule =
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CreateModuleInfo(dllName, AlignSize(m_usedModuleBase, PAGE_SIZE),
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moduleBase, moduleBase);
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m_usedModuleBase += PAGE_SIZE + newModule->size;
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m_moduleList.push_back(newModule);
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printf("push `%s` module to vm base: %llx vm size: %llx\n", newModule->name,
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newModule->base, newModule->size);
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if (uc_mem_map(m_ucEngine, newModule->base, newModule->size,
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UC_PROT_READ | UC_PROT_EXEC) != UC_ERR_OK) {
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throw std::runtime_error("Failed to map module");
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}
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if (uc_mem_write(m_ucEngine, newModule->base, (void*)moduleBase,
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newModule->size) != UC_ERR_OK) {
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throw std::runtime_error("Failed to write data to map module");
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}
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if (peconv::relocate_module((BYTE*)moduleBase, newModule->size,
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newModule->base) == false) {
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throw std::runtime_error("Failed to relocate module");
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}
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newModule->mapped_address = moduleBase;
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newModule->mapped_size = mappedSize;
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// 将模块添加到LDR链表中
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if (m_peInfo->isX64) {
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AddModuleToLdr(newModule);
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}
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}
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auto Sandbox::CreateModuleInfo(std::string dllName, uint64_t moduleBase,
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uint64_t realModuleBase, uint64_t bufferAddress)
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-> std::shared_ptr<struct_moudle> {
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// 解析PE头
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auto* dosHeader = reinterpret_cast<PIMAGE_DOS_HEADER>(bufferAddress);
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auto* ntHeaders = reinterpret_cast<PIMAGE_NT_HEADERS>(
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reinterpret_cast<LPBYTE>(bufferAddress) + dosHeader->e_lfanew);
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// 获取区段对齐值
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DWORD sectionAlignment =
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(ntHeaders->FileHeader.Machine == IMAGE_FILE_MACHINE_AMD64)
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? reinterpret_cast<PIMAGE_NT_HEADERS64>(ntHeaders)
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->OptionalHeader.SectionAlignment
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: ntHeaders->OptionalHeader.SectionAlignment;
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// 获取区段头
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auto* sectionHeader = reinterpret_cast<PIMAGE_SECTION_HEADER>(
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reinterpret_cast<PUCHAR>(ntHeaders) + sizeof(ntHeaders->Signature) +
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sizeof(ntHeaders->FileHeader) +
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ntHeaders->FileHeader.SizeOfOptionalHeader);
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struct_moudle newModule{};
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newModule.name = dllName.c_str();
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newModule.base = moduleBase;
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newModule.real_base = realModuleBase;
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newModule.entry = ntHeaders->OptionalHeader.AddressOfEntryPoint;
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newModule.size = ntHeaders->OptionalHeader.SizeOfImage;
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// 处理区段
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for (WORD i = 0; i < ntHeaders->FileHeader.NumberOfSections; i++) {
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const auto& section = sectionHeader[i];
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// if (!(section.Characteristics &
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// (IMAGE_SCN_MEM_EXECUTE | IMAGE_SCN_CNT_CODE))) {
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// continue;
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// }
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// 设置区段保护属性
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int protection = UC_PROT_READ;
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if (section.Characteristics & IMAGE_SCN_MEM_EXECUTE)
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protection |= UC_PROT_EXEC;
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if (section.Characteristics & IMAGE_SCN_MEM_WRITE)
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protection |= UC_PROT_WRITE;
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// 计算区段大小
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auto sectionSize = AlignToSectionAlignment(
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max(section.Misc.VirtualSize, section.SizeOfRawData),
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sectionAlignment);
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// 创建区段信息
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moudle_section newSection{};
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strncpy(newSection.name, reinterpret_cast<const char*>(section.Name),
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8);
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newSection.base = section.VirtualAddress;
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newSection.size = sectionSize;
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newSection.protect_flag = protection;
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newModule.sections.push_back(
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std::make_shared<moudle_section>(newSection));
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std::cout << "[PE] " << dllName << " Section found: " << newSection.name
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<< '\n';
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}
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return std::make_shared<struct_moudle>(newModule);
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}
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auto Sandbox::ResolveExport(uint64_t moduleBase)
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-> std::vector<std::shared_ptr<moudle_export>> {
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std::vector<std::shared_ptr<moudle_export>> export_list;
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DWORD exportSize = 0;
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static RtlImageDirectoryEntryToDataFn fnRtlImageDirectoryEntryToData;
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if (fnRtlImageDirectoryEntryToData == nullptr) {
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fnRtlImageDirectoryEntryToData =
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reinterpret_cast<RtlImageDirectoryEntryToDataFn>(GetProcAddress(
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GetModuleHandleA("ntdll.dll"), "RtlImageDirectoryEntryToData"));
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}
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// 获取导出表
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PIMAGE_EXPORT_DIRECTORY exportDirectory =
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static_cast<PIMAGE_EXPORT_DIRECTORY>(fnRtlImageDirectoryEntryToData(
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reinterpret_cast<PUCHAR>(moduleBase), TRUE,
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IMAGE_DIRECTORY_ENTRY_EXPORT, &exportSize));
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if (exportDirectory) {
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const DWORD numberOfNames = exportDirectory->NumberOfNames;
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PDWORD addressOfFunctions =
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reinterpret_cast<PDWORD>(reinterpret_cast<PUCHAR>(moduleBase) +
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exportDirectory->AddressOfFunctions);
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PDWORD addressOfNames =
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reinterpret_cast<PDWORD>(reinterpret_cast<PUCHAR>(moduleBase) +
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exportDirectory->AddressOfNames);
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PWORD addressOfNameOrdinals =
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reinterpret_cast<PWORD>(reinterpret_cast<PUCHAR>(moduleBase) +
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exportDirectory->AddressOfNameOrdinals);
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// 遍历导出函数
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for (size_t i = 0; i < numberOfNames; i++) {
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PCHAR functionName = reinterpret_cast<PCHAR>(
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reinterpret_cast<PUCHAR>(moduleBase) + addressOfNames[i]);
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// 获取函数RVA
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const DWORD functionRva =
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addressOfFunctions[addressOfNameOrdinals[i]];
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// 创建导出数据结构
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moudle_export exportData{};
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memcpy(exportData.name, functionName, strlen(functionName));
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exportData.function_address = functionRva;
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exportData.ordinal = static_cast<WORD>(
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addressOfNameOrdinals[i] + exportDirectory->Base); // 设置序号
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export_list.push_back(
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std::make_shared<moudle_export>(exportData));
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}
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}
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return export_list;
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}
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auto Sandbox::ResolveImportExports() -> void {
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for (auto module : m_moduleList) {
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if (module->base == m_peInfo->RecImageBase) {
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continue;
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}
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module->export_function = ResolveExport(module->real_base);
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for (const auto item : module->export_function) {
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if (LOG_LEVEL > 0) {
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printf("[ResolveImportExports] import export: [%s] %s => %llx\n", module->name,
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item->name, item->function_address);
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}
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m_exportFuncDict.push_back(item);
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}
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}
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}
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auto Sandbox::mapSystemModuleToVmByName(std::string systemName) -> void {
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std::string tempMatchName = systemName;
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std::transform(tempMatchName.begin(), tempMatchName.end(), tempMatchName.begin(),
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[](unsigned char c) { return std::toupper(c); });
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for (auto module : m_moduleList) {
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std::string listModuleName = module->name;
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std::transform(listModuleName.begin(), listModuleName.end(), listModuleName.begin(),
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[](unsigned char c) { return std::toupper(c); });
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if (tempMatchName == listModuleName) {
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if (LOG_LEVEL > 0) {
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printf("skip module name: %s (already loaded)\n", module->name);
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}
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return;
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}
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}
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// 构建模块路径
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const std::string systemDir =
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m_peInfo->isX64 ? "\\System32\\" : "\\SysWOW64\\";
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char windowsPath[MAX_PATH];
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if (!GetWindowsDirectoryA(windowsPath, sizeof(windowsPath))) {
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throw std::runtime_error("Failed to get Windows directory");
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}
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const std::string modulePath =
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std::string(windowsPath) + systemDir + systemName;
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// 加载PE模块
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size_t mappedPeSize = 0;
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const auto moduleBase = reinterpret_cast<uint64_t>(
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peconv::load_pe_module(modulePath.c_str(), mappedPeSize, false, false));
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if (!moduleBase) {
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return;
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}
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// 添加到虚拟机
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PushModuleToVM(systemName.c_str(), moduleBase, mappedPeSize);
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}
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auto Sandbox::processImportModule(const moudle_import* importModule) -> void {
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std::string impModule = importModule->dll_name;
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std::transform(impModule.begin(), impModule.end(), impModule.begin(),
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[](unsigned char c) { return std::toupper(c); });
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mapSystemModuleToVmByName(impModule);
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}
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auto Sandbox::ResoveImport() -> void {
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// 处理延迟导入
|
||
peconv::load_delayed_imports(static_cast<BYTE*>(m_peInfo->peBuffer), 0);
|
||
|
||
// 解析导入表
|
||
cListImportNames importCallback(static_cast<BYTE*>(m_peInfo->peBuffer),
|
||
m_peInfo->peSize, m_impFuncDict,
|
||
m_impFuncOrdinalDict);
|
||
|
||
if (!peconv::process_import_table(static_cast<BYTE*>(m_peInfo->peBuffer),
|
||
m_peInfo->peSize, &importCallback)) {
|
||
throw std::runtime_error("Failed to process import table");
|
||
}
|
||
|
||
// 处理每个导入模块
|
||
for (const auto& importModule : m_impFuncDict) {
|
||
processImportModule(importModule.get());
|
||
}
|
||
for (const auto& importModule : m_impFuncOrdinalDict) {
|
||
mapSystemModuleToVmByName(importModule->dll_name);
|
||
}
|
||
}
|
||
|
||
/*
|
||
// 在InitEnv函数之前添加这个函数
|
||
void Sandbox::RegisterComApis() {
|
||
// 注册COM相关API
|
||
_fakeApi coInitializeEx = {Api_CoInitializeEx, 2}; // pvReserved, dwCoInit
|
||
_fakeApi coCreateInstance = {
|
||
Api_CoCreateInstance, 5}; // rclsid, pUnkOuter, dwClsContext, riid, ppv
|
||
_fakeApi variantInit = {Api_VariantInit, 1}; // pvarg
|
||
_fakeApi variantClear = {Api_VariantClear, 1}; // pvarg
|
||
_fakeApi sysAllocString = {Api_SysAllocString, 1}; // psz
|
||
|
||
// 将API添加到映射表中
|
||
m_apiMap["CoInitializeEx"] = coInitializeEx;
|
||
m_apiMap["CoCreateInstance"] = coCreateInstance;
|
||
m_apiMap["VariantInit"] = variantInit;
|
||
m_apiMap["VariantClear"] = variantClear;
|
||
m_apiMap["SysAllocString"] = sysAllocString;
|
||
}
|
||
*/
|
||
// 在InitEnv函数中调用RegisterComApis
|
||
auto Sandbox::InitEnv(std::shared_ptr<BasicPeInfo> peInfo) -> void {
|
||
m_peInfo = peInfo;
|
||
if (cs_open(CS_ARCH_X86, peInfo->isX64 ? CS_MODE_64 : CS_MODE_32,
|
||
&m_csHandle) != CS_ERR_OK) {
|
||
throw std::runtime_error("Failed to initialize Capstone");
|
||
}
|
||
if (uc_open(UC_ARCH_X86, peInfo->isX64 ? UC_MODE_64 : UC_MODE_32,
|
||
&m_ucEngine) != UC_ERR_OK) {
|
||
cs_close(&m_csHandle); // 清理已分配的capstone资源
|
||
throw std::runtime_error("Failed to initialize Unicorn");
|
||
}
|
||
SetupVirtualMachine();
|
||
|
||
// 一定要确保他是第一个.
|
||
auto newModule = CreateModuleInfo(
|
||
"huoji.exe", m_peInfo->RecImageBase, m_peInfo->RecImageBase,
|
||
reinterpret_cast<uint64_t>(m_peInfo->peBuffer));
|
||
|
||
_ASSERTE(m_moduleList.size() == 0);
|
||
m_moduleList.push_back(newModule);
|
||
|
||
// 将模块添加到LDR链表中
|
||
if (m_peInfo->isX64) {
|
||
AddModuleToLdr(newModule);
|
||
}
|
||
|
||
ResoveImport();
|
||
ResolveImportExports();
|
||
|
||
// 修复导入表
|
||
cFixImprot importFixer(this);
|
||
if (!peconv::load_imports(m_peInfo->peBuffer, &importFixer)) {
|
||
throw std::runtime_error("Failed to fix imports");
|
||
}
|
||
//检查有没有ntdll
|
||
bool isFoundNtdll = false;
|
||
bool isFoundKernelBase = false;
|
||
|
||
for (const auto& module : this->GetModuleList()) {
|
||
//我tm也不知道为什么 有些病毒这玩意找小写....然后kernel32.dll找大写.wtf is that?
|
||
if (module->name == "ntdll.dll") {
|
||
isFoundNtdll = true;
|
||
}
|
||
//真的很懒了,这个是按TAB一键出来的
|
||
if (module->name == "KERNELBASE.dll") {
|
||
isFoundKernelBase = true;
|
||
}
|
||
if (isFoundKernelBase && isFoundNtdll) {
|
||
break;
|
||
}
|
||
}
|
||
if (isFoundNtdll == false) {
|
||
if (LOG_LEVEL > 4) {
|
||
printf("Not ntdll.dll Found, manual map it \n");
|
||
}
|
||
mapSystemModuleToVmByName("ntdll.dll");
|
||
}
|
||
if (isFoundKernelBase == false) {
|
||
if (LOG_LEVEL > 4) {
|
||
printf("Not kernelbase.dll Found, manual map it \n");
|
||
}
|
||
mapSystemModuleToVmByName("kernelbase.dll");
|
||
}
|
||
// 闭合ldr
|
||
FinalizeLdrLinks();
|
||
// 给所有导入表加c3
|
||
/*
|
||
for (const auto& module : this->GetModuleList()) {
|
||
// 遍历导出函数查找对应名称
|
||
for (const auto& exp : module->export_function) {
|
||
auto inMemAddr = module->base + exp->function_address;
|
||
uc_mem_write(m_ucEngine, inMemAddr, "\xCC", sizeof(char));
|
||
}
|
||
}
|
||
*/
|
||
// 挂导入表钩子
|
||
for (const auto& module : this->GetModuleList()) {
|
||
// 遍历导出函数查找对应名称
|
||
for (const auto& exp : module->export_function) {
|
||
auto inMemAddr = module->base + exp->function_address;
|
||
uc_hook_add(m_ucEngine, &exp->sys_ook, UC_HOOK_CODE, sandboxCallbacks::handleApiCall,(void*)this, inMemAddr, inMemAddr + 5, 0);
|
||
}
|
||
}
|
||
uc_err ucErr = uc_mem_map(m_ucEngine, m_peInfo->RecImageBase,
|
||
m_peInfo->peSize, UC_PROT_ALL);
|
||
if (ucErr != UC_ERR_OK) {
|
||
throw std::runtime_error("Failed to map memory");
|
||
}
|
||
uc_mem_write(m_ucEngine, m_peInfo->RecImageBase, m_peInfo->peBuffer,
|
||
m_peInfo->peSize);
|
||
printf("map file to vm file: %llx\n", m_peInfo->RecImageBase);
|
||
printf("map file to vm size: %llx\n", m_peInfo->peSize);
|
||
InitCommandLine(peInfo->inputFilePath);
|
||
}
|
||
|
||
auto Sandbox::Run(uint64_t address) -> void {
|
||
// 初始化堆栈
|
||
uc_err err = uc_mem_map(m_ucEngine, m_stackBase, m_stackSize,
|
||
UC_PROT_READ | UC_PROT_WRITE);
|
||
if (err != UC_ERR_OK) {
|
||
throw std::runtime_error("Failed to map stack memory");
|
||
}
|
||
|
||
// 初始化堆
|
||
err = uc_mem_map(m_ucEngine, m_heapBase, m_heapSize,
|
||
UC_PROT_READ | UC_PROT_WRITE);
|
||
if (err != UC_ERR_OK) {
|
||
throw std::runtime_error("Failed to map heap memory");
|
||
}
|
||
|
||
// 设置寄存器
|
||
uint64_t rsp = m_stackEnd - 256;
|
||
err = uc_reg_write(m_ucEngine,
|
||
m_peInfo->isX64 ? UC_X86_REG_RSP : UC_X86_REG_ESP, &rsp);
|
||
if (err != UC_ERR_OK) {
|
||
throw std::runtime_error("Failed to write stack pointer");
|
||
}
|
||
uint64_t rbp =
|
||
rsp - (m_peInfo->isX64 ? sizeof(uint64_t) : sizeof(uint32_t));
|
||
uc_reg_write(m_ucEngine, m_peInfo->isX64 ? UC_X86_REG_RBP : UC_X86_REG_EBP,
|
||
&rbp);
|
||
|
||
// 设置入口点
|
||
uint64_t entryPoint = (m_peInfo->RecImageBase + m_peInfo->entryPoint);
|
||
|
||
// 添加钩子
|
||
uc_hook hook_code, hook_mem, hook_mem_unmap, hook_mem_write, hook_syscall;
|
||
|
||
// 代码执行钩子
|
||
err = uc_hook_add(m_ucEngine, &hook_code, UC_HOOK_CODE,
|
||
reinterpret_cast<void*>(sandboxCallbacks::handleCodeRun),
|
||
this, 1, 0);
|
||
if (err != UC_ERR_OK) {
|
||
throw std::runtime_error("Failed to add code hook");
|
||
}
|
||
|
||
// 内存读取钩子
|
||
err =
|
||
uc_hook_add(m_ucEngine, &hook_mem, UC_HOOK_MEM_READ | UC_HOOK_MEM_FETCH,
|
||
reinterpret_cast<void*>(sandboxCallbacks::handleMemoryRead),
|
||
this, 1, 0);
|
||
if (err != UC_ERR_OK) {
|
||
throw std::runtime_error("Failed to add memory read hook");
|
||
}
|
||
|
||
// 未映射内存访问钩子
|
||
err = uc_hook_add(
|
||
m_ucEngine, &hook_mem_unmap,
|
||
UC_HOOK_MEM_FETCH_UNMAPPED | UC_HOOK_MEM_READ_UNMAPPED |
|
||
UC_HOOK_MEM_WRITE_UNMAPPED | UC_HOOK_MEM_FETCH_PROT,
|
||
reinterpret_cast<void*>(sandboxCallbacks::handleMemoryUnmapRead), this,
|
||
1, 0);
|
||
if (err != UC_ERR_OK) {
|
||
throw std::runtime_error("Failed to add unmapped memory hook");
|
||
}
|
||
|
||
// 内存写入钩子
|
||
err = uc_hook_add(
|
||
m_ucEngine, &hook_mem_write, UC_HOOK_MEM_WRITE | UC_HOOK_MEM_WRITE_PROT,
|
||
reinterpret_cast<void*>(sandboxCallbacks::handleMemoryWrite), this, 1,
|
||
0);
|
||
if (err != UC_ERR_OK) {
|
||
throw std::runtime_error("Failed to add memory write hook");
|
||
}
|
||
|
||
// 系统调用钩子
|
||
err = uc_hook_add(m_ucEngine, &hook_syscall, UC_HOOK_INTR | UC_HOOK_INSN,
|
||
reinterpret_cast<void*>(sandboxCallbacks::handleSyscall),
|
||
this, 1, 0, UC_X86_INS_SYSCALL);
|
||
if (err != UC_ERR_OK) {
|
||
throw std::runtime_error("Failed to add syscall hook");
|
||
}
|
||
// 系统调用钩子
|
||
err = uc_hook_add(m_ucEngine, &hook_syscall, UC_HOOK_INTR | UC_HOOK_INSN,
|
||
reinterpret_cast<void*>(sandboxCallbacks::handleSyscall),
|
||
this, 1, 0, UC_X86_INS_SYSCALL);
|
||
if (err != UC_ERR_OK) {
|
||
throw std::runtime_error("Failed to add syscall hook");
|
||
}
|
||
auto customIP = address;
|
||
// 设置EIP/RIP
|
||
err = uc_reg_write(m_ucEngine,
|
||
m_peInfo->isX64 ? UC_X86_REG_RIP : UC_X86_REG_EIP,
|
||
&entryPoint);
|
||
if (err != UC_ERR_OK) {
|
||
throw std::runtime_error("Failed to set entry point");
|
||
}
|
||
|
||
InitApiHooks();
|
||
|
||
std::cout << "Starting execution at " << std::hex << entryPoint
|
||
<< std::endl;
|
||
//uint64_t timeout = 2 * 60 * 1000 * 1000;
|
||
uint64_t timeout = 0;
|
||
// 1.入口点是必须跑的
|
||
if (m_peInfo->isDll) {
|
||
// 给rcx和rdx设置dll应该设置的
|
||
auto dll_fdwReason = 1; // DLL_PROCESS_ATTACH
|
||
if (m_peInfo->isX64) {
|
||
uc_reg_write(m_ucEngine, UC_X86_REG_RCX, &m_peInfo->RecImageBase);
|
||
uc_reg_write(m_ucEngine, UC_X86_REG_RDX, &dll_fdwReason);
|
||
} else {
|
||
// 32位使用栈传参而不是寄存器传参
|
||
uint32_t rsp;
|
||
uc_reg_read(m_ucEngine, UC_X86_REG_ESP, &rsp);
|
||
|
||
// 为参数腾出空间
|
||
rsp -= 3 * 4; // 三个参数：hinstDLL, fdwReason, lpvReserved
|
||
uc_reg_write(m_ucEngine, UC_X86_REG_ESP, &rsp);
|
||
// 按照从右到左的顺序压栈
|
||
uint32_t lpvReserved = 0; // 第三个参数为NULL
|
||
uint32_t reason = dll_fdwReason; // DLL_PROCESS_ATTACH
|
||
uint32_t imageBase = static_cast<uint32_t>(m_peInfo->RecImageBase);
|
||
|
||
// 按照从右到左的调用约定写入参数到栈上
|
||
uc_mem_write(m_ucEngine, rsp, &lpvReserved,
|
||
sizeof(uint32_t)); // lpvReserved (最右侧参数最先入栈)
|
||
uc_mem_write(m_ucEngine, rsp + 4, &reason,
|
||
sizeof(uint32_t)); // fdwReason (中间参数次之入栈)
|
||
uc_mem_write(m_ucEngine, rsp + 8, &imageBase,
|
||
sizeof(uint32_t)); // hinstDLL (最左侧参数最后入栈)
|
||
|
||
// 在Windows下，DLL的返回地址也需要压栈
|
||
uint32_t returnAddress = 0xABABABAB; // 虚拟的返回地址
|
||
rsp -= 4; // 为返回地址腾出空间
|
||
uc_reg_write(m_ucEngine, UC_X86_REG_ESP, &rsp);
|
||
uc_mem_write(m_ucEngine, rsp, &returnAddress, sizeof(uint32_t));
|
||
}
|
||
}
|
||
err = uc_emu_start(m_ucEngine, entryPoint, m_peInfo->imageEnd, timeout, 0);
|
||
|
||
// 2. 有自定义地址 再跑自定义地址
|
||
std::cerr << "Entry Point Emulation error: " << uc_strerror(err)
|
||
<< std::endl;
|
||
if (address != 0) {
|
||
err = uc_emu_start(m_ucEngine, address + MAIN_MODULE_BASE, m_peInfo->imageEnd, timeout, 0);
|
||
std::cerr << "Custom Emulation error: " << uc_strerror(err)
|
||
<< std::endl;
|
||
}
|
||
}
|
||
|
||
auto Sandbox::GetEnvString() -> std::vector<wchar_t> {
|
||
std::vector<wchar_t> envBlock;
|
||
// 添加一些基本的环境变量
|
||
const std::wstring vars[] = {
|
||
L"ALLUSERSPROFILE=C:\\ProgramData",
|
||
L"APPDATA=C:\\Users\\User\\AppData\\Roaming",
|
||
L"CommonProgramFiles=C:\\Program Files\\Common Files",
|
||
L"COMPUTERNAME=DESKTOP",
|
||
L"ComSpec=C:\\Windows\\system32\\cmd.exe",
|
||
L"HOMEDRIVE=C:",
|
||
L"HOMEPATH=\\Users\\User",
|
||
L"LOCALAPPDATA=C:\\Users\\User\\AppData\\Local",
|
||
L"NUMBER_OF_PROCESSORS=8",
|
||
L"OS=Windows_NT",
|
||
L"Path=C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem",
|
||
L"PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC",
|
||
L"PROCESSOR_ARCHITECTURE=AMD64",
|
||
L"ProgramData=C:\\ProgramData",
|
||
L"ProgramFiles=C:\\Program Files",
|
||
L"PROMPT=$P$G",
|
||
L"SystemDrive=C:",
|
||
L"SystemRoot=C:\\Windows",
|
||
L"TEMP=C:\\Users\\huoji\\AppData\\Local\\Temp",
|
||
L"TMP=C:\\Users\\huoji\\AppData\\Local\\Temp",
|
||
L"USERDOMAIN=DESKTOP",
|
||
L"USERNAME=User",
|
||
L"USERPROFILE=C:\\Users\\User",
|
||
L"windir=C:\\Windows"};
|
||
|
||
// 将环境变量添加到块中
|
||
for (const auto& var : vars) {
|
||
envBlock.insert(envBlock.end(), var.begin(), var.end());
|
||
envBlock.push_back(L'\0'); // 每个变量以null结尾
|
||
}
|
||
envBlock.push_back(L'\0'); // 环境块以额外的null结尾
|
||
|
||
return envBlock;
|
||
}
|
||
|
||
auto Sandbox::GetEnvStringsSize() -> size_t {
|
||
return GetEnvString().size() * sizeof(wchar_t);
|
||
}
|
||
|
||
auto Sandbox::getVirtualMemorySize(BYTE* peBuffer) -> size_t {
|
||
if (!peBuffer) {
|
||
return 0;
|
||
}
|
||
|
||
// 解析PE头
|
||
auto* dosHeader = reinterpret_cast<PIMAGE_DOS_HEADER>(peBuffer);
|
||
if (dosHeader->e_magic != IMAGE_DOS_SIGNATURE) {
|
||
return 0;
|
||
}
|
||
auto* ntHeaders = reinterpret_cast<PIMAGE_NT_HEADERS>(
|
||
reinterpret_cast<LPBYTE>(peBuffer) + dosHeader->e_lfanew);
|
||
// 获取区段头
|
||
auto* sectionHeader = reinterpret_cast<PIMAGE_SECTION_HEADER>(
|
||
reinterpret_cast<PUCHAR>(ntHeaders) + sizeof(ntHeaders->Signature) +
|
||
sizeof(ntHeaders->FileHeader) +
|
||
ntHeaders->FileHeader.SizeOfOptionalHeader);
|
||
|
||
DWORD minOffset = UINT_MAX;
|
||
DWORD totalSize = 0;
|
||
|
||
// 遍历所有区段
|
||
for (WORD i = 0; i < ntHeaders->FileHeader.NumberOfSections; i++) {
|
||
const auto& section = sectionHeader[i];
|
||
|
||
// 查找最小虚拟地址偏移
|
||
if (section.VirtualAddress < minOffset) {
|
||
minOffset = section.VirtualAddress;
|
||
}
|
||
|
||
// 累加虚拟大小
|
||
totalSize += section.Misc.VirtualSize;
|
||
}
|
||
|
||
// 添加最小偏移到总大小
|
||
totalSize += minOffset;
|
||
|
||
return static_cast<size_t>(totalSize);
|
||
}
|