CModule class improvements

*Use unordered_map to get mpdule sections instead, as this is more performant than comparing strings.
* Removed 'm_SectionName' field from ModuleSections_t, as the unordered map now keeps track of them.
* Removed all extraneous module section copies.
* Renamed 'GetImportedFunction' to 'GetImportedSymbol'.
* Renamed 'GetExportedFunction' to 'GetExportedSymbol'.
*Made a static version of 'GetImportedSymbol' and 'GetExportedSymbol', so it could be used on raw module base addresses.
*Created inlines for getting the DOS and NT headers.
*Improved formatting so the code could be read more easily on a vertical monitor.
This commit is contained in:
Kawe Mazidjatari 2023-06-25 10:29:42 +02:00
parent f31788c6c2
commit b76f4aa3bd
8 changed files with 276 additions and 188 deletions

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@ -34,10 +34,10 @@ class MilesCore : public IDetour
#endif // !(GAMEDLL_S0) || !(GAMEDLL_S1) || !(GAMEDLL_S2) #endif // !(GAMEDLL_S0) || !(GAMEDLL_S1) || !(GAMEDLL_S2)
v_Miles_Initialize = p_Miles_Initialize.RCast<bool(*)()>(); v_Miles_Initialize = p_Miles_Initialize.RCast<bool(*)()>();
p_MilesQueueEventRun = g_RadAudioSystemDll.GetExportedFunction("MilesQueueEventRun"); p_MilesQueueEventRun = g_RadAudioSystemDll.GetExportedSymbol("MilesQueueEventRun");
v_MilesQueueEventRun = p_MilesQueueEventRun.RCast<void(*)(Miles::Queue*, const char*)>(); v_MilesQueueEventRun = p_MilesQueueEventRun.RCast<void(*)(Miles::Queue*, const char*)>();
p_MilesBankPatch = g_RadAudioSystemDll.GetExportedFunction("MilesBankPatch"); p_MilesBankPatch = g_RadAudioSystemDll.GetExportedSymbol("MilesBankPatch");
v_MilesBankPatch = p_MilesBankPatch.RCast<void(*)(Miles::Bank*, char*, char*)>(); v_MilesBankPatch = p_MilesBankPatch.RCast<void(*)(Miles::Bank*, char*, char*)>();
} }

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@ -20,11 +20,11 @@ class BinkCore : public IDetour
} }
virtual void GetFun(void) const virtual void GetFun(void) const
{ {
p_BinkOpen = g_RadVideoToolsDll.GetExportedFunction("BinkOpen"); p_BinkOpen = g_RadVideoToolsDll.GetExportedSymbol("BinkOpen");
v_BinkOpen = p_BinkOpen.RCast<void*(*)(HANDLE, UINT32)>(); v_BinkOpen = p_BinkOpen.RCast<void*(*)(HANDLE, UINT32)>();
p_BinkClose = g_RadVideoToolsDll.GetExportedFunction("BinkClose"); p_BinkClose = g_RadVideoToolsDll.GetExportedSymbol("BinkClose");
v_BinkClose = p_BinkClose.RCast<void(*)(HANDLE)>(); v_BinkClose = p_BinkClose.RCast<void(*)(HANDLE)>();
p_BinkGetError = g_RadVideoToolsDll.GetExportedFunction("BinkGetError"); p_BinkGetError = g_RadVideoToolsDll.GetExportedSymbol("BinkGetError");
v_BinkGetError = p_BinkGetError.RCast<const char* (*)(void)>(); v_BinkGetError = p_BinkGetError.RCast<const char* (*)(void)>();
} }
virtual void GetVar(void) const { } virtual void GetVar(void) const { }

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@ -37,7 +37,7 @@ class VLauncher : public IDetour
p_WinMain = g_GameDll.FindPatternSIMD("48 89 5C 24 ?? 48 89 6C 24 ?? 48 89 74 24 ?? 57 48 83 EC 20 41 8B D9 49 8B F8"); p_WinMain = g_GameDll.FindPatternSIMD("48 89 5C 24 ?? 48 89 6C 24 ?? 48 89 74 24 ?? 57 48 83 EC 20 41 8B D9 49 8B F8");
v_WinMain = p_WinMain.RCast<int (*)(HINSTANCE, HINSTANCE, LPSTR, int)>(); v_WinMain = p_WinMain.RCast<int (*)(HINSTANCE, HINSTANCE, LPSTR, int)>();
p_LauncherMain = g_GameDll.GetExportedFunction("LauncherMain"); p_LauncherMain = g_GameDll.GetExportedSymbol("LauncherMain");
v_LauncherMain = p_LauncherMain.RCast<int(*)(HINSTANCE)>(); v_LauncherMain = p_LauncherMain.RCast<int(*)(HINSTANCE)>();
p_TopLevelExceptionFilter = g_GameDll.FindPatternSIMD("40 53 48 83 EC 20 48 8B 05 ?? ?? ?? ?? 48 8B D9 48 85 C0 74 06"); p_TopLevelExceptionFilter = g_GameDll.FindPatternSIMD("40 53 48 83 EC 20 48 8B 05 ?? ?? ?? ?? 48 8B D9 48 85 C0 74 06");

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@ -36,7 +36,7 @@ CPluginSDK::~CPluginSDK()
//--------------------------------------------------------------------------------- //---------------------------------------------------------------------------------
bool CPluginSDK::InitSDK() bool CPluginSDK::InitSDK()
{ {
auto getFactorySystemFn = m_SDKModule.GetExportedFunction("GetFactorySystem").RCast<void*(*)()>(); auto getFactorySystemFn = m_SDKModule.GetExportedSymbol("GetFactorySystem").RCast<void*(*)()>();
Assert(getFactorySystemFn, "Could not find GetFactorySystem export from gamesdk.dll"); Assert(getFactorySystemFn, "Could not find GetFactorySystem export from gamesdk.dll");
if (!getFactorySystemFn) if (!getFactorySystemFn)

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@ -56,8 +56,12 @@ bool CPluginSystem::LoadPluginInstance(PluginInstance_t& pluginInst)
CModule pluginModule = CModule(pluginInst.m_svPluginName.c_str()); CModule pluginModule = CModule(pluginInst.m_svPluginName.c_str());
// Pass selfModule here on load function, we have to do this because local listen/dedi/client dll's are called different, refer to a comment on the pluginsdk. // Pass selfModule here on load function, we have to do
auto onLoadFn = pluginModule.GetExportedFunction("PluginInstance_OnLoad").RCast<PluginInstance_t::OnLoad>(); // this because local listen/dedi/client dll's are called
// different, refer to a comment on the pluginsdk.
PluginInstance_t::OnLoad onLoadFn = pluginModule.GetExportedSymbol(
"PluginInstance_OnLoad").RCast<PluginInstance_t::OnLoad>();
Assert(onLoadFn); Assert(onLoadFn);
if (!onLoadFn(pluginInst.m_svPluginName.c_str(), g_SDKDll.GetModuleName().c_str())) if (!onLoadFn(pluginInst.m_svPluginName.c_str(), g_SDKDll.GetModuleName().c_str()))
@ -67,7 +71,6 @@ bool CPluginSystem::LoadPluginInstance(PluginInstance_t& pluginInst)
} }
pluginInst.m_hModule = pluginModule; pluginInst.m_hModule = pluginModule;
return pluginInst.m_bIsLoaded = true; return pluginInst.m_bIsLoaded = true;
} }
@ -81,7 +84,10 @@ bool CPluginSystem::UnloadPluginInstance(PluginInstance_t& pluginInst)
if (!pluginInst.m_bIsLoaded) if (!pluginInst.m_bIsLoaded)
return false; return false;
auto onUnloadFn = pluginInst.m_hModule.GetExportedFunction("PluginInstance_OnUnload").RCast<PluginInstance_t::OnUnload>(); PluginInstance_t::OnUnload onUnloadFn =
pluginInst.m_hModule.GetExportedSymbol(
"PluginInstance_OnUnload").RCast<PluginInstance_t::OnUnload>();
Assert(onUnloadFn); Assert(onUnloadFn);
if (onUnloadFn) if (onUnloadFn)

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@ -1,5 +1,6 @@
#ifndef MODULE_H #ifndef MODULE_H
#define MODULE_H #define MODULE_H
#include "windows/tebpeb64.h"
class CModule class CModule
{ {
@ -7,58 +8,66 @@ public:
struct ModuleSections_t struct ModuleSections_t
{ {
ModuleSections_t(void) = default; ModuleSections_t(void) = default;
ModuleSections_t(const char* sectionName, uintptr_t pSectionBase, size_t nSectionSize) : ModuleSections_t(QWORD pSectionBase, size_t nSectionSize) :
m_SectionName(sectionName), m_pSectionBase(pSectionBase), m_nSectionSize(nSectionSize) {} m_pSectionBase(pSectionBase), m_nSectionSize(nSectionSize) {}
inline bool IsSectionValid(void) const { return m_nSectionSize != 0; } inline bool IsSectionValid(void) const { return m_nSectionSize != 0; }
string m_SectionName; // Name of section. QWORD m_pSectionBase; // Start address of section.
uintptr_t m_pSectionBase; // Start address of section.
size_t m_nSectionSize; // Size of section. size_t m_nSectionSize; // Size of section.
}; };
typedef unordered_map<string, ModuleSections_t> ModuleSectionsMap_t;
CModule(void) = default; CModule(void) = default;
CModule(const char* szModuleName); CModule(const char* szModuleName, const bool bDynamicInit = true);
CModule(const char* szModuleName, const uintptr_t nModuleBase); CModule(const char* szModuleName, const QWORD nModuleBase, const bool bDynamicInit = true);
void Init(); void Init(const bool bInitSections);
void LoadSections(); void LoadSections();
#ifndef PLUGINSDK
CMemory FindPatternSIMD(const char* szPattern, const ModuleSections_t* moduleSection = nullptr) const; CMemory FindPatternSIMD(const char* szPattern, const ModuleSections_t* moduleSection = nullptr) const;
CMemory FindString(const char* szString, const ptrdiff_t occurrence = 1, bool nullTerminator = false) const; CMemory FindString(const char* szString, const ptrdiff_t occurrence = 1, bool nullTerminator = false) const;
CMemory FindStringReadOnly(const char* szString, bool nullTerminator) const; CMemory FindStringReadOnly(const char* szString, bool nullTerminator) const;
CMemory FindFreeDataPage(const size_t nSize) const; CMemory FindFreeDataPage(const size_t nSize) const;
CMemory GetVirtualMethodTable(const char* szTableName, const size_t nRefIndex = 0); CMemory GetVirtualMethodTable(const char* szTableName, const size_t nRefIndex = 0);
#endif // !PLUGINSDK
CMemory GetImportedFunction(const char* szModuleName, const char* szFunctionName, const bool bGetFunctionReference) const;
CMemory GetExportedFunction(const char* szFunctionName) const;
ModuleSections_t GetSectionByName(const char* szSectionName) const;
inline const vector<CModule::ModuleSections_t>& GetSections() const { return m_ModuleSections; } static CMemory GetImportedSymbol(QWORD pModuleBase, const char* szModuleName, const char* szSymbolName, const bool bGetSymbolReference);
inline uintptr_t GetModuleBase(void) const { return m_pModuleBase; } inline CMemory GetImportedSymbol(const char* szModuleName, const char* szSymbolName, const bool bGetSymbolReference) const
{ return GetImportedSymbol(m_pModuleBase, szModuleName, szSymbolName, bGetSymbolReference); }
static CMemory GetExportedSymbol(QWORD pModuleBase, const char* szSymbolName);
inline CMemory GetExportedSymbol(const char* szSymbolName) const
{ return GetExportedSymbol(m_pModuleBase, szSymbolName); }
inline const CModule::ModuleSections_t& GetSectionByName(const char* szSectionName) const
{ return m_ModuleSections.at(szSectionName); }
inline const ModuleSectionsMap_t& GetSections() const { return m_ModuleSections; }
inline QWORD GetModuleBase(void) const { return m_pModuleBase; }
inline DWORD GetModuleSize(void) const { return m_nModuleSize; } inline DWORD GetModuleSize(void) const { return m_nModuleSize; }
inline const string& GetModuleName(void) const { return m_ModuleName; } inline const string& GetModuleName(void) const { return m_ModuleName; }
inline uintptr_t GetRVA(const uintptr_t nAddress) const { return (nAddress - GetModuleBase()); } inline QWORD GetRVA(const QWORD nAddress) const { return (nAddress - GetModuleBase()); }
inline IMAGE_DOS_HEADER* GetDOSHeader() const { return GetDOSHeader(m_pModuleBase); }
inline static IMAGE_DOS_HEADER* GetDOSHeader(QWORD pModuleBase)
{ return reinterpret_cast<IMAGE_DOS_HEADER*>(pModuleBase); }
inline IMAGE_NT_HEADERS64* GetNTHeaders() const { return GetNTHeaders(m_pModuleBase); }
inline static IMAGE_NT_HEADERS64* GetNTHeaders(QWORD pModuleBase)
{ return reinterpret_cast<IMAGE_NT_HEADERS64*>(pModuleBase + GetDOSHeader(pModuleBase)->e_lfanew); }
void UnlinkFromPEB(void) const; void UnlinkFromPEB(void) const;
IMAGE_NT_HEADERS64* m_pNTHeaders;
IMAGE_DOS_HEADER* m_pDOSHeader;
ModuleSections_t m_ExecutableCode;
ModuleSections_t m_ExceptionTable;
ModuleSections_t m_RunTimeData;
ModuleSections_t m_ReadOnlyData;
private: private:
CMemory FindPatternSIMD(const uint8_t* pPattern, const char* szMask, CMemory FindPatternSIMD(const uint8_t* pPattern, const char* szMask,
const ModuleSections_t* moduleSection = nullptr, const size_t nOccurrence = 0) const; const ModuleSections_t* moduleSection = nullptr, const size_t nOccurrence = 0) const;
string m_ModuleName; QWORD m_pModuleBase;
uintptr_t m_pModuleBase;
DWORD m_nModuleSize; DWORD m_nModuleSize;
vector<ModuleSections_t> m_ModuleSections; string m_ModuleName;
ModuleSectionsMap_t m_ModuleSections;
}; };
#endif // MODULE_H #endif // MODULE_H

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@ -205,7 +205,7 @@ void CCrashHandler::FormatSystemInfo()
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
void CCrashHandler::FormatBuildInfo() void CCrashHandler::FormatBuildInfo()
{ {
m_svBuffer.append(Format("build_id: %u\n", g_SDKDll.m_pNTHeaders->FileHeader.TimeDateStamp)); m_svBuffer.append(Format("build_id: %u\n", g_SDKDll.GetNTHeaders()->FileHeader.TimeDateStamp));
} }
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------

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@ -5,19 +5,17 @@
//===========================================================================// //===========================================================================//
#include "tier0/memaddr.h" #include "tier0/memaddr.h"
#include "tier0/sigcache.h" #include "tier0/sigcache.h"
#include "windows/tebpeb64.h"
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
// Purpose: constructor // Purpose: constructor
// Input : *szModuleName - // Input : *szModuleName -
// bDynamicInit - set this to false if there is no memory allocator
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
CModule::CModule(const char* szModuleName) CModule::CModule(const char* szModuleName, const bool bDynamicInit)
: m_ModuleName(szModuleName) : m_ModuleName(szModuleName)
{ {
m_pModuleBase = reinterpret_cast<uintptr_t>(GetModuleHandleA(szModuleName)); m_pModuleBase = reinterpret_cast<QWORD>(GetModuleHandleA(szModuleName));
Init(bDynamicInit);
Init();
LoadSections();
} }
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
@ -25,30 +23,24 @@ CModule::CModule(const char* szModuleName)
// Input : *szModuleName - // Input : *szModuleName -
// nModuleBase - // nModuleBase -
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
CModule::CModule(const char* szModuleName, const uintptr_t nModuleBase) CModule::CModule(const char* szModuleName, const QWORD nModuleBase,
const bool bDynamicInit)
: m_ModuleName(szModuleName) : m_ModuleName(szModuleName)
, m_pModuleBase(nModuleBase) , m_pModuleBase(nModuleBase)
{ {
Init(); Init(bDynamicInit);
LoadSections();
} }
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
// Purpose: initializes module descriptors // Purpose: initializes module descriptors
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
void CModule::Init() void CModule::Init(const bool bInitSections)
{ {
m_pDOSHeader = reinterpret_cast<IMAGE_DOS_HEADER*>(m_pModuleBase); m_nModuleSize = static_cast<size_t>(GetNTHeaders()->OptionalHeader.SizeOfImage);
m_pNTHeaders = reinterpret_cast<IMAGE_NT_HEADERS64*>(m_pModuleBase + m_pDOSHeader->e_lfanew);
m_nModuleSize = static_cast<size_t>(m_pNTHeaders->OptionalHeader.SizeOfImage);
const IMAGE_SECTION_HEADER* hSection = IMAGE_FIRST_SECTION(m_pNTHeaders); // Get first image section. if (bInitSections)
for (WORD i = 0; i < m_pNTHeaders->FileHeader.NumberOfSections; i++) // Loop through the sections.
{ {
const IMAGE_SECTION_HEADER& hCurrentSection = hSection[i]; // Get current section. LoadSections();
m_ModuleSections.push_back(ModuleSections_t(reinterpret_cast<const char*>(hCurrentSection.Name),
static_cast<uintptr_t>(m_pModuleBase + hCurrentSection.VirtualAddress), hCurrentSection.SizeOfRawData)); // Push back a struct with the section data.
} }
} }
@ -57,13 +49,19 @@ void CModule::Init()
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
void CModule::LoadSections() void CModule::LoadSections()
{ {
m_ExecutableCode = GetSectionByName(".text"); const IMAGE_NT_HEADERS64* pNTHeaders = GetNTHeaders();
m_ExceptionTable = GetSectionByName(".pdata"); const IMAGE_SECTION_HEADER* hSection = IMAGE_FIRST_SECTION(pNTHeaders);
m_RunTimeData = GetSectionByName(".data");
m_ReadOnlyData = GetSectionByName(".rdata"); for (WORD i = 0; i < pNTHeaders->FileHeader.NumberOfSections; i++)
{
// Capture each section.
const IMAGE_SECTION_HEADER& hCurrentSection = hSection[i];
m_ModuleSections.emplace(reinterpret_cast<const char*>(hCurrentSection.Name),
ModuleSections_t(static_cast<QWORD>
(m_pModuleBase + hCurrentSection.VirtualAddress), hCurrentSection.SizeOfRawData));
}
} }
#ifndef PLUGINSDK
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
// Purpose: find array of bytes in process memory using SIMD instructions // Purpose: find array of bytes in process memory using SIMD instructions
// Input : *pPattern - // Input : *pPattern -
@ -75,13 +73,17 @@ void CModule::LoadSections()
CMemory CModule::FindPatternSIMD(const uint8_t* pPattern, const char* szMask, CMemory CModule::FindPatternSIMD(const uint8_t* pPattern, const char* szMask,
const ModuleSections_t* moduleSection, const size_t nOccurrence) const const ModuleSections_t* moduleSection, const size_t nOccurrence) const
{ {
if (!m_ExecutableCode.IsSectionValid()) const ModuleSections_t& executableCode = GetSectionByName(".text");
return CMemory();
if (!executableCode.IsSectionValid())
return nullptr;
const bool bSectionValid = moduleSection ? moduleSection->IsSectionValid() : false; const bool bSectionValid = moduleSection ? moduleSection->IsSectionValid() : false;
const uintptr_t nBase = bSectionValid ? moduleSection->m_pSectionBase : m_ExecutableCode.m_pSectionBase; const QWORD nBase = bSectionValid ?
const uintptr_t nSize = bSectionValid ? moduleSection->m_nSectionSize : m_ExecutableCode.m_nSectionSize; moduleSection->m_pSectionBase : executableCode.m_pSectionBase;
const QWORD nSize = bSectionValid ?
moduleSection->m_nSectionSize : executableCode.m_nSectionSize;
const size_t nMaskLen = strlen(szMask); const size_t nMaskLen = strlen(szMask);
const uint8_t* pData = reinterpret_cast<uint8_t*>(nBase); const uint8_t* pData = reinterpret_cast<uint8_t*>(nBase);
@ -141,7 +143,7 @@ CMemory CModule::FindPatternSIMD(const uint8_t* pPattern, const char* szMask,
} }
}cont:; }cont:;
} }
return CMemory(); return nullptr;
} }
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
@ -150,7 +152,8 @@ CMemory CModule::FindPatternSIMD(const uint8_t* pPattern, const char* szMask,
// *moduleSection - // *moduleSection -
// Output : CMemory // Output : CMemory
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
CMemory CModule::FindPatternSIMD(const char* szPattern, const ModuleSections_t* moduleSection) const CMemory CModule::FindPatternSIMD(const char* szPattern,
const ModuleSections_t* moduleSection) const
{ {
uint64_t nRVA; uint64_t nRVA;
if (g_SigCache.FindEntry(szPattern, nRVA)) if (g_SigCache.FindEntry(szPattern, nRVA))
@ -158,8 +161,11 @@ CMemory CModule::FindPatternSIMD(const char* szPattern, const ModuleSections_t*
return CMemory(nRVA + GetModuleBase()); return CMemory(nRVA + GetModuleBase());
} }
const pair<vector<uint8_t>, string> patternInfo = PatternToMaskedBytes(szPattern); const pair<vector<uint8_t>, string>
const CMemory memory = FindPatternSIMD(patternInfo.first.data(), patternInfo.second.c_str(), moduleSection); patternInfo = PatternToMaskedBytes(szPattern);
const CMemory memory = FindPatternSIMD(patternInfo.first.data(),
patternInfo.second.c_str(), moduleSection);
g_SigCache.AddEntry(szPattern, GetRVA(memory.GetPtr())); g_SigCache.AddEntry(szPattern, GetRVA(memory.GetPtr()));
return memory; return memory;
@ -171,10 +177,13 @@ CMemory CModule::FindPatternSIMD(const char* szPattern, const ModuleSections_t*
// bNullTerminator - // bNullTerminator -
// Output : CMemory // Output : CMemory
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
CMemory CModule::FindString(const char* szString, const ptrdiff_t nOccurrence, bool bNullTerminator) const CMemory CModule::FindString(const char* szString, const ptrdiff_t nOccurrence,
bool bNullTerminator) const
{ {
if (!m_ExecutableCode.IsSectionValid()) const ModuleSections_t& executableCode = GetSectionByName(".text");
return CMemory();
if (!executableCode.IsSectionValid())
return nullptr;
uint64_t nRVA; uint64_t nRVA;
string svPackedString = szString + std::to_string(nOccurrence); string svPackedString = szString + std::to_string(nOccurrence);
@ -184,25 +193,33 @@ CMemory CModule::FindString(const char* szString, const ptrdiff_t nOccurrence, b
return CMemory(nRVA + GetModuleBase()); return CMemory(nRVA + GetModuleBase());
} }
const CMemory stringAddress = FindStringReadOnly(szString, bNullTerminator); // Get Address for the string in the .rdata section. // Get Address for the string in the .rdata section.
const CMemory stringAddress = FindStringReadOnly(szString, bNullTerminator);
if (!stringAddress) if (!stringAddress)
return CMemory(); return nullptr;
// Get the start of the .text section.
uint8_t* pTextStart = reinterpret_cast<uint8_t*>(executableCode.m_pSectionBase);
uint8_t* pLatestOccurrence = nullptr; uint8_t* pLatestOccurrence = nullptr;
uint8_t* pTextStart = reinterpret_cast<uint8_t*>(m_ExecutableCode.m_pSectionBase); // Get the start of the .text section.
ptrdiff_t dOccurrencesFound = 0; ptrdiff_t dOccurrencesFound = 0;
CMemory resultAddress; CMemory resultAddress;
for (size_t i = 0ull; i < m_ExecutableCode.m_nSectionSize - 0x5; i++) for (size_t i = 0ull; i < executableCode.m_nSectionSize - 0x5; i++)
{ {
byte byte = pTextStart[i]; byte byte = pTextStart[i];
if (byte == LEA) if (byte == LEA)
{ {
const CMemory skipOpCode = CMemory(reinterpret_cast<uintptr_t>(&pTextStart[i])).OffsetSelf(0x2); // Skip next 2 opcodes, those being the instruction and the register. // Skip next 2 opcodes, those being the instruction and the register.
const int32_t relativeAddress = skipOpCode.GetValue<int32_t>(); // Get 4-byte long string relative Address const CMemory skipOpCode = CMemory(reinterpret_cast<
const uintptr_t nextInstruction = skipOpCode.Offset(0x4).GetPtr(); // Get location of next instruction. QWORD>(&pTextStart[i])).OffsetSelf(0x2);
const CMemory potentialLocation = CMemory(nextInstruction + relativeAddress); // Get potential string location.
// Get 4-byte long string relative Address
const int32_t relativeAddress = skipOpCode.GetValue<int32_t>();
// Get location of next instruction.
const QWORD nextInstruction = skipOpCode.Offset(0x4).GetPtr();
// Get potential string location.
const CMemory potentialLocation = CMemory(nextInstruction + relativeAddress);
if (potentialLocation == stringAddress) if (potentialLocation == stringAddress)
{ {
@ -234,8 +251,10 @@ CMemory CModule::FindString(const char* szString, const ptrdiff_t nOccurrence, b
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
CMemory CModule::FindStringReadOnly(const char* szString, bool bNullTerminator) const CMemory CModule::FindStringReadOnly(const char* szString, bool bNullTerminator) const
{ {
if (!m_ReadOnlyData.IsSectionValid()) const ModuleSections_t& readOnlyData = GetSectionByName(".rdata");
return CMemory();
if (!readOnlyData.IsSectionValid())
return nullptr;
uint64_t nRVA; uint64_t nRVA;
if (g_SigCache.FindEntry(szString, nRVA)) if (g_SigCache.FindEntry(szString, nRVA))
@ -243,17 +262,21 @@ CMemory CModule::FindStringReadOnly(const char* szString, bool bNullTerminator)
return CMemory(nRVA + GetModuleBase()); return CMemory(nRVA + GetModuleBase());
} }
const vector<int> vBytes = StringToBytes(szString, bNullTerminator); // Convert our string to a byte array. // Convert our string to a byte array.
const pair<size_t, const int*> bytesInfo = std::make_pair<size_t, const int*>(vBytes.size(), vBytes.data()); // Get the size and data of our bytes. const vector<int> vBytes = StringToBytes(szString, bNullTerminator);
const pair<size_t, const int*> bytesInfo = std::make_pair<
size_t, const int*>(vBytes.size(), vBytes.data()); // Get the size and data of our bytes.
const uint8_t* pBase = reinterpret_cast<uint8_t*>(m_ReadOnlyData.m_pSectionBase); // Get start of .rdata section. // Get start of .rdata section.
const uint8_t* pBase = reinterpret_cast<uint8_t*>(readOnlyData.m_pSectionBase);
for (size_t i = 0ull; i < m_ReadOnlyData.m_nSectionSize - bytesInfo.first; i++) for (size_t i = 0ull; i < readOnlyData.m_nSectionSize - bytesInfo.first; i++)
{ {
bool bFound = true; bool bFound = true;
// If either the current byte equals to the byte in our pattern or our current byte in the pattern is a wildcard // If either the current byte equals to the byte in
// our if clause will be false. // our pattern or our current byte in the pattern is
// a wildcard our if clause will be false.
for (size_t j = 0ull; j < bytesInfo.first; j++) for (size_t j = 0ull; j < bytesInfo.first; j++)
{ {
if (pBase[i + j] != bytesInfo.second[j] && bytesInfo.second[j] != -1) if (pBase[i + j] != bytesInfo.second[j] && bytesInfo.second[j] != -1)
@ -272,7 +295,7 @@ CMemory CModule::FindStringReadOnly(const char* szString, bool bNullTerminator)
} }
} }
return CMemory(); return nullptr;
} }
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
@ -288,29 +311,44 @@ CMemory CModule::FindFreeDataPage(const size_t nSize) const
VirtualQuery(address, &membInfo, sizeof(membInfo)); VirtualQuery(address, &membInfo, sizeof(membInfo));
if (membInfo.AllocationBase && membInfo.BaseAddress && membInfo.State == MEM_COMMIT && !(membInfo.Protect & PAGE_GUARD) && membInfo.Protect != PAGE_NOACCESS) if (membInfo.AllocationBase && membInfo.BaseAddress &&
membInfo.State == MEM_COMMIT &&
!(membInfo.Protect & PAGE_GUARD) &&
membInfo.Protect != PAGE_NOACCESS)
{ {
if ((membInfo.Protect & (PAGE_EXECUTE_READWRITE | PAGE_READWRITE)) && membInfo.RegionSize >= size) if ((membInfo.Protect &
(PAGE_EXECUTE_READWRITE | PAGE_READWRITE)) &&
membInfo.RegionSize >= size)
{ {
return ((membInfo.Protect & (PAGE_EXECUTE_READWRITE | PAGE_READWRITE)) && membInfo.RegionSize >= size) ? true : false; return ((membInfo.Protect &
(PAGE_EXECUTE_READWRITE | PAGE_READWRITE))
&& membInfo.RegionSize >= size) ? true : false;
} }
} }
return false; return false;
}; };
// This is very unstable, this doesn't check for the actual 'page' sizes. // This is very unstable, this doesn't check
// Also can be optimized to search per 'section'. // for the actual 'page' sizes. Also can be
const uintptr_t endOfModule = m_pModuleBase + m_pNTHeaders->OptionalHeader.SizeOfImage - sizeof(uintptr_t); // optimized to search per 'section'.
for (uintptr_t currAddr = endOfModule; m_pModuleBase < currAddr; currAddr -= sizeof(uintptr_t)) const QWORD endOfModule = m_pModuleBase
+ GetNTHeaders()->OptionalHeader.SizeOfImage - sizeof(QWORD);
for (QWORD currAddr = endOfModule;
m_pModuleBase < currAddr; currAddr -= sizeof(QWORD))
{ {
if (*reinterpret_cast<uintptr_t*>(currAddr) == 0 && checkDataSection(reinterpret_cast<void*>(currAddr), nSize)) if (*reinterpret_cast<QWORD*>(currAddr) == 0 &&
checkDataSection(reinterpret_cast<void*>(currAddr), nSize))
{ {
bool bIsGoodPage = true; bool bIsGoodPage = true;
uint32_t nPageCount = 0; uint32_t nPageCount = 0;
for (; nPageCount < nSize && bIsGoodPage; nPageCount += sizeof(uintptr_t)) for (; nPageCount < nSize && bIsGoodPage;
nPageCount += sizeof(QWORD))
{ {
const uintptr_t pageData = *reinterpret_cast<std::uintptr_t*>(currAddr + nPageCount); const QWORD pageData =*reinterpret_cast<
QWORD*>(currAddr + nPageCount);
if (pageData != 0) if (pageData != 0)
bIsGoodPage = false; bIsGoodPage = false;
} }
@ -320,7 +358,7 @@ CMemory CModule::FindFreeDataPage(const size_t nSize) const
} }
} }
return CMemory(); return nullptr;
} }
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
@ -331,7 +369,9 @@ CMemory CModule::FindFreeDataPage(const size_t nSize) const
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
CMemory CModule::GetVirtualMethodTable(const char* szTableName, const size_t nRefIndex) CMemory CModule::GetVirtualMethodTable(const char* szTableName, const size_t nRefIndex)
{ {
uint64_t nRVA; // Packed together as we can have multiple VFTable searches, but with different ref indexes. // Packed together as we can have multiple VFTable
// searches, but with different ref indices.
uint64_t nRVA;
string svPackedTableName = szTableName + std::to_string(nRefIndex); string svPackedTableName = szTableName + std::to_string(nRefIndex);
if (g_SigCache.FindEntry(svPackedTableName.c_str(), nRVA)) if (g_SigCache.FindEntry(svPackedTableName.c_str(), nRVA))
@ -339,177 +379,210 @@ CMemory CModule::GetVirtualMethodTable(const char* szTableName, const size_t nRe
return CMemory(nRVA + GetModuleBase()); return CMemory(nRVA + GetModuleBase());
} }
ModuleSections_t moduleSection(".data", m_RunTimeData.m_pSectionBase, m_RunTimeData.m_nSectionSize); const ModuleSections_t& readOnlyData = GetSectionByName(".rdata");
const ModuleSections_t& dataSection = GetSectionByName(".data");
const auto tableNameInfo = StringToMaskedBytes(szTableName, false); const auto tableNameInfo = StringToMaskedBytes(szTableName, false);
CMemory rttiTypeDescriptor = FindPatternSIMD(tableNameInfo.first.data(), tableNameInfo.second.c_str(), &moduleSection).OffsetSelf(-0x10); CMemory rttiTypeDescriptor = FindPatternSIMD(tableNameInfo.first.data(),
tableNameInfo.second.c_str(), &dataSection).OffsetSelf(-0x10);
if (!rttiTypeDescriptor) if (!rttiTypeDescriptor)
return CMemory(); return nullptr;
uintptr_t scanStart = m_ReadOnlyData.m_pSectionBase; // Get the start address of our scan. QWORD scanStart = readOnlyData.m_pSectionBase;
const QWORD scanEnd = (readOnlyData.m_pSectionBase + readOnlyData.m_nSectionSize) - 0x4;
// The RTTI gets referenced by a 4-Byte RVA
// address, we need to scan for that address.
const QWORD rttiTDRva = rttiTypeDescriptor.GetPtr() - m_pModuleBase;
ModuleSections_t moduleSection;
const uintptr_t scanEnd = (m_ReadOnlyData.m_pSectionBase + m_ReadOnlyData.m_nSectionSize) - 0x4; // Calculate the end of our scan.
const uintptr_t rttiTDRva = rttiTypeDescriptor.GetPtr() - m_pModuleBase; // The RTTI gets referenced by a 4-Byte RVA address. We need to scan for that address.
while (scanStart < scanEnd) while (scanStart < scanEnd)
{ {
moduleSection = { ".rdata", scanStart, m_ReadOnlyData.m_nSectionSize }; moduleSection = { scanStart, readOnlyData.m_nSectionSize };
CMemory reference = FindPatternSIMD(reinterpret_cast<rsig_t>(&rttiTDRva), "xxxx", &moduleSection, nRefIndex);
CMemory reference = FindPatternSIMD(reinterpret_cast<rsig_t>(
&rttiTDRva), "xxxx", &moduleSection, nRefIndex);
if (!reference) if (!reference)
break; break;
CMemory referenceOffset = reference.Offset(-0xC); CMemory referenceOffset = reference.Offset(-0xC);
if (referenceOffset.GetValue<int32_t>() != 1) // Check if we got a RTTI Object Locator for this reference by checking if -0xC is 1, which is the 'signature' field which is always 1 on x64.
// Check if we got a RTTI Object Locator for this
// reference by checking if -0xC is 1, which is the
// 'signature' field which is always 1 on x64.
if (referenceOffset.GetValue<int32_t>() != 1)
{ {
scanStart = reference.Offset(0x4).GetPtr(); // Set location to current reference + 0x4 so we avoid pushing it back again into the vector. // Set location to current reference + 0x4 so we
// avoid pushing it back again into the vector.
scanStart = reference.Offset(0x4).GetPtr();
continue; continue;
} }
moduleSection = { ".rdata", m_ReadOnlyData.m_pSectionBase, m_ReadOnlyData.m_nSectionSize }; moduleSection = {readOnlyData.m_pSectionBase, readOnlyData.m_nSectionSize };
CMemory vfTable = FindPatternSIMD(reinterpret_cast<rsig_t>(&referenceOffset), "xxxxxxxx", &moduleSection).OffsetSelf(0x8);
g_SigCache.AddEntry(svPackedTableName.c_str(), GetRVA(vfTable.GetPtr()));
CMemory vfTable = FindPatternSIMD(reinterpret_cast<rsig_t>(
&referenceOffset), "xxxxxxxx", &moduleSection).OffsetSelf(0x8);
g_SigCache.AddEntry(svPackedTableName.c_str(), GetRVA(vfTable.GetPtr()));
return vfTable; return vfTable;
} }
return CMemory(); return CMemory();
} }
#endif // !PLUGINSDK
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
// Purpose: get address of imported function in target module // Purpose: get address of imported function in target module
// Input : *szModuleName - // Input : *szModuleName -
// *szFunctionName - // *szSymbolName -
// bGetFunctionReference - // bGetSymbolReference -
// Output : CMemory // Output : CMemory
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
CMemory CModule::GetImportedFunction(const char* szModuleName, const char* szFunctionName, const bool bGetFunctionReference) const CMemory CModule::GetImportedSymbol(QWORD pModuleBase, const char* szModuleName,
const char* szSymbolName, const bool bGetSymbolReference)
{ {
if (!m_pDOSHeader || m_pDOSHeader->e_magic != IMAGE_DOS_SIGNATURE) // Is dosHeader valid? IMAGE_DOS_HEADER* pDOSHeader = GetDOSHeader(pModuleBase);
return CMemory(); IMAGE_NT_HEADERS64* pNTHeaders = GetNTHeaders(pModuleBase);
if (!m_pNTHeaders || m_pNTHeaders->Signature != IMAGE_NT_SIGNATURE) // Is ntHeader valid? if (!pDOSHeader || pDOSHeader->e_magic != IMAGE_DOS_SIGNATURE)
return CMemory(); return nullptr;
if (!pNTHeaders || pNTHeaders->Signature != IMAGE_NT_SIGNATURE)
return nullptr;
// Get the location of IMAGE_IMPORT_DESCRIPTOR for this
// module by adding the IMAGE_DIRECTORY_ENTRY_IMPORT
// relative virtual address onto our module base address.
IMAGE_IMPORT_DESCRIPTOR* pImageImportDescriptors = reinterpret_cast<IMAGE_IMPORT_DESCRIPTOR*>
(pModuleBase + pNTHeaders->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress);
// Get the location of IMAGE_IMPORT_DESCRIPTOR for this module by adding the IMAGE_DIRECTORY_ENTRY_IMPORT relative virtual address onto our module base address.
IMAGE_IMPORT_DESCRIPTOR* pImageImportDescriptors = reinterpret_cast<IMAGE_IMPORT_DESCRIPTOR*>(m_pModuleBase + m_pNTHeaders->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress);
if (!pImageImportDescriptors) if (!pImageImportDescriptors)
return CMemory(); return nullptr;
for (IMAGE_IMPORT_DESCRIPTOR* pIID = pImageImportDescriptors; pIID->Name != 0; pIID++) for (IMAGE_IMPORT_DESCRIPTOR* pIID = pImageImportDescriptors; pIID->Name != 0; pIID++)
{ {
// Get virtual relative Address of the imported module name. Then add module base Address to get the actual location. // Get virtual relative Address of the imported module name.
const char* szImportedModuleName = reinterpret_cast<char*>(reinterpret_cast<DWORD*>(m_pModuleBase + pIID->Name)); // Then add module base Address to get the actual location.
const char* szImportedModuleName = reinterpret_cast<char*>(reinterpret_cast<DWORD*>(pModuleBase + pIID->Name));
if (stricmp(szImportedModuleName, szModuleName) == 0) // Is this our wanted imported module?. if (stricmp(szImportedModuleName, szModuleName) == NULL)
{ {
// Original First Thunk to get function name. IMAGE_THUNK_DATA* pOgFirstThunk = reinterpret_cast<IMAGE_THUNK_DATA*>(pModuleBase + pIID->OriginalFirstThunk);
IMAGE_THUNK_DATA* pOgFirstThunk = reinterpret_cast<IMAGE_THUNK_DATA*>(m_pModuleBase + pIID->OriginalFirstThunk);
// To get actual function address. // To get actual function address.
IMAGE_THUNK_DATA* pFirstThunk = reinterpret_cast<IMAGE_THUNK_DATA*>(m_pModuleBase + pIID->FirstThunk); IMAGE_THUNK_DATA* pFirstThunk = reinterpret_cast<IMAGE_THUNK_DATA*>(pModuleBase + pIID->FirstThunk);
for (; pOgFirstThunk->u1.AddressOfData; ++pOgFirstThunk, ++pFirstThunk) for (; pOgFirstThunk->u1.AddressOfData; ++pOgFirstThunk, ++pFirstThunk)
{ {
// Get image import by name. // Get image import by name.
const IMAGE_IMPORT_BY_NAME* pImageImportByName = reinterpret_cast<IMAGE_IMPORT_BY_NAME*>(m_pModuleBase + pOgFirstThunk->u1.AddressOfData); const IMAGE_IMPORT_BY_NAME* pImageImportByName = reinterpret_cast<IMAGE_IMPORT_BY_NAME*>(
pModuleBase + pOgFirstThunk->u1.AddressOfData);
if (strcmp(pImageImportByName->Name, szFunctionName) == 0) // Is this our wanted imported function? if (strcmp(pImageImportByName->Name, szSymbolName) == NULL)
{ {
// Grab function address from firstThunk. // Grab function address from firstThunk.
uintptr_t* pFunctionAddress = &pFirstThunk->u1.Function; QWORD* pFunctionAddress = &pFirstThunk->u1.Function;
// Reference or address? // Reference or address?
return bGetFunctionReference ? CMemory(pFunctionAddress) : CMemory(*pFunctionAddress); // Return as CMemory class. return bGetSymbolReference ? CMemory(pFunctionAddress) : CMemory(*pFunctionAddress);
} }
} }
} }
} }
return CMemory(); return nullptr;
} }
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
// Purpose: get address of exported function in this module // Purpose: get address of exported symbol in this module
// Input : *szFunctionName - // Input : *pModuleBase -
// bNullTerminator - // szSymbolName -
// Output : CMemory // Output : CMemory
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
CMemory CModule::GetExportedFunction(const char* szFunctionName) const CMemory CModule::GetExportedSymbol(QWORD pModuleBase, const char* szSymbolName)
{ {
if (!m_pDOSHeader || m_pDOSHeader->e_magic != IMAGE_DOS_SIGNATURE) // Is dosHeader valid? IMAGE_DOS_HEADER* pDOSHeader = GetDOSHeader(pModuleBase);
return CMemory(); IMAGE_NT_HEADERS64* pNTHeaders = GetNTHeaders(pModuleBase);
if (!m_pNTHeaders || m_pNTHeaders->Signature != IMAGE_NT_SIGNATURE) // Is ntHeader valid? if (!pDOSHeader || pDOSHeader->e_magic != IMAGE_DOS_SIGNATURE)
return CMemory(); return nullptr;
if (!pNTHeaders || pNTHeaders->Signature != IMAGE_NT_SIGNATURE)
return nullptr;
// Get the location of IMAGE_EXPORT_DIRECTORY for this
// module by adding the IMAGE_DIRECTORY_ENTRY_EXPORT
// relative virtual address onto our module base address.
const IMAGE_EXPORT_DIRECTORY* pImageExportDirectory =
reinterpret_cast<IMAGE_EXPORT_DIRECTORY*>(pModuleBase
+ pNTHeaders->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress);
// Get the location of IMAGE_EXPORT_DIRECTORY for this module by adding the IMAGE_DIRECTORY_ENTRY_EXPORT relative virtual address onto our module base address.
const IMAGE_EXPORT_DIRECTORY* pImageExportDirectory = reinterpret_cast<IMAGE_EXPORT_DIRECTORY*>(m_pModuleBase + m_pNTHeaders->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress);
if (!pImageExportDirectory) if (!pImageExportDirectory)
return CMemory(); return nullptr;
// Are there any exported functions?
if (!pImageExportDirectory->NumberOfFunctions) if (!pImageExportDirectory->NumberOfFunctions)
return CMemory(); return nullptr;
// Get the location of the functions.
const DWORD* pAddressOfFunctions = reinterpret_cast<DWORD*>(pModuleBase
+ pImageExportDirectory->AddressOfFunctions);
// Get the location of the functions via adding the relative virtual address from the struct into our module base address.
const DWORD* pAddressOfFunctions = reinterpret_cast<DWORD*>(m_pModuleBase + pImageExportDirectory->AddressOfFunctions);
if (!pAddressOfFunctions) if (!pAddressOfFunctions)
return CMemory(); return nullptr;
// Get the names of the functions.
const DWORD* pAddressOfName = reinterpret_cast<DWORD*>(pModuleBase
+ pImageExportDirectory->AddressOfNames);
// Get the names of the functions via adding the relative virtual address from the struct into our module base Address.
const DWORD* pAddressOfName = reinterpret_cast<DWORD*>(m_pModuleBase + pImageExportDirectory->AddressOfNames);
if (!pAddressOfName) if (!pAddressOfName)
return CMemory(); return nullptr;
// Get the ordinals of the functions.
DWORD* pAddressOfOrdinals = reinterpret_cast<DWORD*>(pModuleBase
+ pImageExportDirectory->AddressOfNameOrdinals);
// Get the ordinals of the functions via adding the relative virtual Address from the struct into our module base address.
DWORD* pAddressOfOrdinals = reinterpret_cast<DWORD*>(m_pModuleBase + pImageExportDirectory->AddressOfNameOrdinals);
if (!pAddressOfOrdinals) if (!pAddressOfOrdinals)
return CMemory(); return nullptr;
for (DWORD i = 0; i < pImageExportDirectory->NumberOfFunctions; i++) // Iterate through all the functions. for (DWORD i = 0; i < pImageExportDirectory->NumberOfFunctions; i++)
{ {
// Get virtual relative Address of the function name. Then add module base Address to get the actual location. // Get virtual relative Address of the function name,
const char* ExportFunctionName = reinterpret_cast<char*>(reinterpret_cast<DWORD*>(m_pModuleBase + pAddressOfName[i])); // then add module base Address to get the actual location.
const char* ExportFunctionName =
reinterpret_cast<char*>(reinterpret_cast<DWORD*>(
pModuleBase + pAddressOfName[i]));
if (strcmp(ExportFunctionName, szFunctionName) == 0) // Is this our wanted exported function? if (strcmp(ExportFunctionName, szSymbolName) == NULL)
{ {
// Get the function ordinal. Then grab the relative virtual address of our wanted function. Then add module base address so we get the actual location. // Get the function ordinal, then grab the relative
return CMemory(m_pModuleBase + pAddressOfFunctions[reinterpret_cast<WORD*>(pAddressOfOrdinals)[i]]); // Return as CMemory class. // virtual address of our wanted function. Then add
// module base address so we get the actual location.
return pModuleBase
+ pAddressOfFunctions[reinterpret_cast<WORD*>(pAddressOfOrdinals)[i]];
} }
} }
return CMemory(); return nullptr;
}
//-----------------------------------------------------------------------------
// Purpose: get the module section by name (example: '.rdata', '.text')
// Input : *szSectionName -
// Output : ModuleSections_t
//-----------------------------------------------------------------------------
CModule::ModuleSections_t CModule::GetSectionByName(const char* szSectionName) const
{
for (const ModuleSections_t& section : m_ModuleSections)
{
if (section.m_SectionName.compare(szSectionName) == 0)
return section;
}
return ModuleSections_t();
} }
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
// Purpose: unlink module from peb // Purpose: unlink module from peb
// Disclaimer: This does not bypass GetMappedFileName. That function calls
// NtQueryVirtualMemory which does a syscall to ntoskrnl for getting info
// on a section.
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
void CModule::UnlinkFromPEB() const // Disclaimer: This does not bypass GetMappedFileName. That function calls NtQueryVirtualMemory which does a syscall to ntoskrnl for getting info on a section. void CModule::UnlinkFromPEB() const
{ {
#define UNLINK_FROM_PEB(entry) \ #define UNLINK_FROM_PEB(entry) \
(entry).Flink->Blink = (entry).Blink; \ (entry).Flink->Blink = (entry).Blink; \
(entry).Blink->Flink = (entry).Flink; (entry).Blink->Flink = (entry).Flink;
const PEB64* processEnvBlock = reinterpret_cast<PEB64*>(__readgsqword(0x60)); // https://en.wikipedia.org/wiki/Win32_Thread_Information_Block // https://en.wikipedia.org/wiki/Win32_Thread_Information_Block
const PEB64* processEnvBlock = reinterpret_cast<PEB64*>(__readgsqword(0x60));
const LIST_ENTRY* inLoadOrderList = &processEnvBlock->Ldr->InLoadOrderModuleList; const LIST_ENTRY* inLoadOrderList = &processEnvBlock->Ldr->InLoadOrderModuleList;
for (LIST_ENTRY* entry = inLoadOrderList->Flink; entry != inLoadOrderList; entry = entry->Flink) for (LIST_ENTRY* entry = inLoadOrderList->Flink; entry != inLoadOrderList; entry = entry->Flink)
{ {
const PLDR_DATA_TABLE_ENTRY pldrEntry = reinterpret_cast<PLDR_DATA_TABLE_ENTRY>(entry->Flink); const PLDR_DATA_TABLE_ENTRY pldrEntry = reinterpret_cast<PLDR_DATA_TABLE_ENTRY>(entry->Flink);
const std::uintptr_t baseAddr = reinterpret_cast<std::uintptr_t>(pldrEntry->DllBase); const QWORD baseAddr = reinterpret_cast<QWORD>(pldrEntry->DllBase);
if (baseAddr != m_pModuleBase) if (baseAddr != m_pModuleBase)
continue; continue;