705 lines
27 KiB
C++
705 lines
27 KiB
C++
#include "sandbox.h"
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#include "sandbox_callbacks.h"
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std::string getDllNameFromApiSetMap(const std::string& apiSet) {
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const std::wstring wApiSet(apiSet.begin(), apiSet.end());
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// 获取系统版本信息
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using RtlGetVersionFunc = LONG(__stdcall*)(PRTL_OSVERSIONINFOW);
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const auto pRtlGetVersion = reinterpret_cast<RtlGetVersionFunc>(
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GetProcAddress(LoadLibraryA("ntdll.dll"), "RtlGetVersion"));
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RTL_OSVERSIONINFOEXW verInfo{};
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verInfo.dwOSVersionInfoSize = sizeof(verInfo);
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pRtlGetVersion(reinterpret_cast<PRTL_OSVERSIONINFOW>(&verInfo));
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const ULONG verShort = (verInfo.dwMajorVersion << 8) |
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(verInfo.dwMinorVersion << 4) |
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verInfo.wServicePackMajor;
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if (verShort >= static_cast<ULONG>(WinVer::kWin10)) {
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const auto apiSetMap = reinterpret_cast<API_SET_NAMESPACE_ARRAY_10*>(
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reinterpret_cast<X64PEB*>(__readgsqword(0x60))->ApiSetMap);
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const auto apiSetMapAsNumber = reinterpret_cast<ULONG_PTR>(apiSetMap);
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auto nsEntry = reinterpret_cast<PAPI_SET_NAMESPACE_ENTRY_10>(
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apiSetMap->Start + apiSetMapAsNumber);
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// 遍历API集合查找匹配项
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for (ULONG i = 0; i < apiSetMap->Count; i++) {
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UNICODE_STRING nameString{}, valueString{};
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nameString.MaximumLength = static_cast<USHORT>(nsEntry->NameLength);
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nameString.Length = static_cast<USHORT>(nsEntry->NameLength);
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nameString.Buffer = reinterpret_cast<PWCHAR>(apiSetMapAsNumber +
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nsEntry->NameOffset);
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const std::wstring name(nameString.Buffer,
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nameString.Length / sizeof(WCHAR));
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const std::wstring fullName = name + L".dll";
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if (_wcsicmp(wApiSet.c_str(), fullName.c_str()) == 0) {
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if (nsEntry->ValueCount == 0) {
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return "";
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}
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const auto valueEntry =
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reinterpret_cast<PAPI_SET_VALUE_ENTRY_10>(
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apiSetMapAsNumber + nsEntry->ValueOffset);
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valueString.Buffer = reinterpret_cast<PWCHAR>(
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apiSetMapAsNumber + valueEntry->ValueOffset);
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valueString.MaximumLength =
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static_cast<USHORT>(valueEntry->ValueLength);
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valueString.Length =
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static_cast<USHORT>(valueEntry->ValueLength);
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const std::wstring value(valueString.Buffer,
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valueString.Length / sizeof(WCHAR));
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return {value.begin(), value.end()};
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}
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++nsEntry;
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}
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} else {
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// 不支持Windows 10以下版本
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throw std::runtime_error("Unsupported Windows version");
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}
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return "";
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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(BYTE* _modulePtr, size_t _moduleSize,
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std::vector<std::shared_ptr<moudle_import>>& name_to_addr)
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: ImportThunksCallback(_modulePtr, _moduleSize),
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nameToAddr(name_to_addr) {}
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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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return true;
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}
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std::vector<std::shared_ptr<moudle_import>>& nameToAddr;
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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 (_stricmp(module->name, lib_name) == 0) {
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// 遍历模块的导出函数
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for (const auto& exp : m_sandbox->m_exportFuncDict) {
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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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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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return newBase;
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}
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}
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}
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}
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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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Sandbox::~Sandbox() {}
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auto Sandbox::PushModuleToVM(const char* dllName, uint64_t moduleBase) -> 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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// 解析PE头
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auto* dosHeader = reinterpret_cast<PIMAGE_DOS_HEADER>(moduleBase);
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auto* ntHeaders = reinterpret_cast<PIMAGE_NT_HEADERS>(
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reinterpret_cast<LPBYTE>(moduleBase) + 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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// 创建新模块
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struct_moudle newModule{};
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strncpy(newModule.name, dllName, strlen(dllName));
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newModule.base =
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this->m_peInfo->isX64 ? moduleBase : static_cast<uint32_t>(moduleBase);
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newModule.real_base = moduleBase;
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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 =
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AlignSize(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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m_moduleList.push_back(std::make_shared<struct_moudle>(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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uc_mem_map(m_ucEngine, newModule.base, newModule.size,
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UC_PROT_READ | UC_PROT_EXEC);
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uc_mem_write(m_ucEngine, newModule.base, (void*)moduleBase, newModule.size);
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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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}
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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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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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m_exportFuncDict.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 m_exportFuncDict;
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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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const auto exports = ResolveExport(module->real_base);
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for (const auto item : exports) {
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printf("import export: [%s] %s => %llx\n", module->name, item->name,
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item->function_address);
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module->export_function.push_back(item);
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}
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}
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}
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auto Sandbox::processImportModule(const moudle_import* importModule) -> void {
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for (auto module : m_moduleList) {
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if (strcmp(module->name, importModule->dll_name) == 0) {
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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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// 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 + importModule->dll_name;
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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(importModule->dll_name, moduleBase);
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}
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auto Sandbox::ResoveImport() -> void {
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// 处理延迟导入
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peconv::load_delayed_imports(static_cast<BYTE*>(m_peInfo->peBuffer), 0);
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// 解析导入表
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cListImportNames importCallback(static_cast<BYTE*>(m_peInfo->peBuffer),
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m_peInfo->peSize, m_impFuncDict);
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if (!peconv::process_import_table(static_cast<BYTE*>(m_peInfo->peBuffer),
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m_peInfo->peSize, &importCallback)) {
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throw std::runtime_error("Failed to process import table");
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}
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// 处理每个导入模块
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for (const auto& importModule : m_impFuncDict) {
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processImportModule(importModule.get());
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}
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}
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auto Sandbox::SetupVirtualMachine() -> void {
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SegmentSelector cs = {0};
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cs.fields.index = 1;
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uc_reg_write(m_ucEngine, UC_X86_REG_CS, &cs.all);
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SegmentSelector ds = {0};
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ds.fields.index = 2;
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uc_reg_write(m_ucEngine, UC_X86_REG_DS, &ds.all);
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SegmentSelector ss = {0};
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ss.fields.index = 2;
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uc_reg_write(m_ucEngine, UC_X86_REG_SS, &ss.all);
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SegmentSelector es = {0};
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es.fields.index = 2;
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uc_reg_write(m_ucEngine, UC_X86_REG_ES, &es.all);
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SegmentSelector gs = {0};
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gs.fields.index = 2;
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uc_reg_write(m_ucEngine, UC_X86_REG_GS, &gs.all);
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FlagRegister eflags = {0};
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eflags.fields.id = 1;
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eflags.fields.intf = 1;
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eflags.fields.reserved1 = 1;
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uc_reg_write(m_ucEngine, UC_X86_REG_EFLAGS, &eflags.all);
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uint64_t cr8 = 0;
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uc_reg_write(m_ucEngine, UC_X86_REG_CR8, &cr8);
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/*
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映射 m_KSharedUserDataBase
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*/
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uint64_t m_KSharedUserDataBase = 0x7FFE0000;
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uint64_t m_KSharedUserDataEnd = 0x7FFE0FFF; // 0x7FFE2000
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uint64_t m_KSharedUserDataSize =
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AlignSize(m_KSharedUserDataEnd - m_KSharedUserDataBase, PAGE_SIZE);
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uc_mem_map(m_ucEngine, m_KSharedUserDataBase, m_KSharedUserDataSize,
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UC_PROT_READ);
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uc_mem_write(m_ucEngine, m_KSharedUserDataBase,
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(void*)m_KSharedUserDataBase, m_KSharedUserDataSize);
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m_tebBase = TEB_BASE; // 进程TEB地址
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m_pebBase = PEB_BASE; // 进程PEB地址
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m_envBlockBase = ENV_BLOCK_BASE; // 环境变量块地址
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// stack
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m_stackBase =
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AlignSize(this->m_peInfo->isX64 ? STACK_BASE_64 : STACK_BASE_32, 16);
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m_stackSize =
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AlignSize(this->m_peInfo->isX64 ? STACK_SIZE_64 : STACK_SIZE_32, 16);
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m_stackEnd = m_stackBase + m_stackSize;
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// heap
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m_heapBase = this->m_peInfo->isX64 ? HEAP_ADDRESS_64 : HEAP_ADDRESS_32;
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m_heapSize = this->m_peInfo->isX64 ? HEAP_SIZE_64 : HEAP_SIZE_32;
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m_heapEnd = m_heapBase + m_heapSize;
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// 根据PE文件类型设置PEB和TEB
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if (this->m_peInfo->isX64) {
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// 设置64位PEB
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m_peb64.ImageBaseAddress = m_peInfo->RecImageBase;
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m_pebEnd = m_pebBase + AlignSize(sizeof(X64PEB), PAGE_SIZE);
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m_tebEnd = m_tebBase + AlignSize(sizeof(X64TEB), PAGE_SIZE);
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// 设置64位TEB
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m_teb64.ClientId.UniqueProcess = GetCurrentProcessId();
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m_teb64.ClientId.UniqueThread = GetCurrentThreadId();
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m_teb64.ProcessEnvironmentBlock = reinterpret_cast<X64PEB*>(m_pebBase);
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m_teb64.NtTib.StackBase = (DWORD64)m_stackBase;
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m_teb64.NtTib.StackLimit = (DWORD64)m_stackSize;
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// 设置堆
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m_peb64.ProcessHeap = m_heapBase;
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// 设置GS基址结构
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m_gsBaseStruct.teb = m_tebBase;
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m_gsBaseStruct.peb = m_pebBase;
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uint64_t gsAllocSize = AlignSize(sizeof(struct_gs_base), PAGE_SIZE);
|
||
|
||
// 映射PEB到虚拟内存
|
||
uc_mem_map(m_ucEngine, m_pebBase, m_pebEnd - m_pebBase,
|
||
UC_PROT_READ | UC_PROT_WRITE);
|
||
uc_mem_write(m_ucEngine, m_pebBase, &m_peb64, sizeof(X64PEB));
|
||
|
||
// 映射TEB到虚拟内存
|
||
uc_mem_map(m_ucEngine, m_tebBase, m_tebEnd - m_tebBase,
|
||
UC_PROT_READ | UC_PROT_WRITE);
|
||
uc_mem_write(m_ucEngine, m_tebBase, &m_teb64, sizeof(X64TEB));
|
||
|
||
// 映射GS基址结构到虚拟内存
|
||
uc_mem_map(m_ucEngine, m_gsBase, gsAllocSize, UC_PROT_READ);
|
||
uc_mem_write(m_ucEngine, m_gsBase, &m_gsBaseStruct,
|
||
sizeof(struct_gs_base));
|
||
|
||
// 设置GS基址MSR
|
||
uc_x86_msr msr;
|
||
msr.rid = static_cast<uint32_t>(Msr::kIa32GsBase);
|
||
msr.value = m_gsBase;
|
||
uc_reg_write(m_ucEngine, UC_X86_REG_MSR, &msr);
|
||
} else {
|
||
// 设置32位PEB
|
||
m_peb32.ImageBaseAddress = static_cast<ULONG>(m_peInfo->RecImageBase);
|
||
m_pebEnd = m_pebBase + AlignSize(sizeof(X32PEB), PAGE_SIZE);
|
||
m_tebEnd = m_tebBase + AlignSize(sizeof(X32TEB), PAGE_SIZE);
|
||
|
||
// 设置32位TEB
|
||
m_teb32.ClientId.UniqueProcess = GetCurrentProcessId();
|
||
m_teb32.ClientId.UniqueThread = GetCurrentThreadId();
|
||
m_teb32.ProcessEnvironmentBlock = static_cast<ULONG>(m_pebBase);
|
||
m_teb32.NtTib.StackBase = static_cast<ULONG>(m_stackBase);
|
||
m_teb32.NtTib.StackLimit = static_cast<ULONG>(m_stackSize);
|
||
|
||
// 设置堆
|
||
m_peb32.ProcessHeap = static_cast<ULONG>(m_heapBase);
|
||
|
||
// 映射PEB到虚拟内存
|
||
uc_mem_map(m_ucEngine, m_pebBase, m_pebEnd - m_pebBase,
|
||
UC_PROT_READ | UC_PROT_WRITE);
|
||
uc_mem_write(m_ucEngine, m_pebBase, &m_peb32, sizeof(X32PEB));
|
||
|
||
// 映射TEB到虚拟内存
|
||
uc_mem_map(m_ucEngine, m_tebBase, m_tebEnd - m_tebBase,
|
||
UC_PROT_READ | UC_PROT_WRITE);
|
||
uc_mem_write(m_ucEngine, m_tebBase, &m_teb32, sizeof(X32TEB));
|
||
|
||
// 对于32位，我们需要设置FS段寄存器指向TEB
|
||
SegmentSelector fs = {0};
|
||
fs.fields.index = 3;
|
||
uc_reg_write(m_ucEngine, UC_X86_REG_FS, &fs.all);
|
||
|
||
// 设置FS基址MSR
|
||
uc_x86_msr msr;
|
||
msr.rid = static_cast<uint32_t>(Msr::kIa32FsBase);
|
||
msr.value = m_tebBase;
|
||
uc_reg_write(m_ucEngine, UC_X86_REG_MSR, &msr);
|
||
}
|
||
// 映射新的内存区域
|
||
size_t envSize = AlignSize(this->GetEnvStringsSize(), PAGE_SIZE);
|
||
printf("env block size: %llx\n", envSize); // 添加调试输出
|
||
uc_err envErr = uc_mem_map(m_ucEngine, m_envBlockBase, envSize,
|
||
UC_PROT_READ | UC_PROT_WRITE);
|
||
if (envErr != UC_ERR_OK) {
|
||
throw std::runtime_error("Failed to map environment block");
|
||
}
|
||
|
||
auto envData = this->GetEnvString();
|
||
envErr = uc_mem_write(m_ucEngine, m_envBlockBase, envData.data(),
|
||
envData.size() * sizeof(wchar_t));
|
||
if (envErr != UC_ERR_OK) {
|
||
throw std::runtime_error("Failed to write environment block");
|
||
}
|
||
|
||
for (DWORD i = 0; i < 64; i++) {
|
||
GetTeb64()->TlsSlots[i] = (void*)0x1337ffffff;
|
||
}
|
||
for (DWORD i = 0; i < 64; i++) {
|
||
GetTeb32()->TlsSlots[i] = 0x1337;
|
||
}
|
||
}
|
||
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");
|
||
}
|
||
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");
|
||
}
|
||
|
||
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);
|
||
SetupVirtualMachine();
|
||
InitCommandLine(peInfo->inputFilePath);
|
||
}
|
||
|
||
auto Sandbox::Run() -> 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");
|
||
}
|
||
|
||
// 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;
|
||
err = uc_emu_start(m_ucEngine, entryPoint, m_peInfo->imageEnd, 0, 0);
|
||
if (err != UC_ERR_OK) {
|
||
std::cerr << "Emulation error: " << uc_strerror(err) << std::endl;
|
||
|
||
// 32位环境下的错误处理
|
||
if (!m_peInfo->isX64) {
|
||
uint32_t eip;
|
||
uc_reg_read(m_ucEngine, UC_X86_REG_EIP, &eip);
|
||
std::cerr << "Error occurred at EIP: 0x" << std::hex << eip
|
||
<< std::endl;
|
||
|
||
// 尝试读取当前指令
|
||
uint8_t instruction[16];
|
||
if (uc_mem_read(m_ucEngine, eip, instruction,
|
||
sizeof(instruction)) == UC_ERR_OK) {
|
||
std::cerr << "Instruction bytes: ";
|
||
for (int i = 0; i < 16; i++) {
|
||
printf("%02X ", instruction[i]);
|
||
}
|
||
std::cerr << 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\\User\\AppData\\Local\\Temp",
|
||
L"TMP=C:\\Users\\User\\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);
|
||
}
|