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creatwth.cpp
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//////////////////////////////////////////////////////////////////////////////
//
// Create a process with a DLL (creatwth.cpp of detours.lib)
//
// Microsoft Research Detours Package, Version 3.0 Build_316.
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
#include <windows.h>
#include <stddef.h>
#if (_MSC_VER < 1299)
typedef DWORD DWORD_PTR;
#endif
#if (_MSC_VER < 1310)
#else
#include <strsafe.h>
#endif
// #define DETOUR_DEBUG 1
// #define IGNORE_CHECKSUMS 1
#define DETOURS_INTERNAL
#include "detours.h"
#define IMPORT_DIRECTORY OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT]
#define BOUND_DIRECTORY OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT]
#define CLR_DIRECTORY OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR]
#define IAT_DIRECTORY OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IAT]
//////////////////////////////////////////////////////////////////////////////
//
#ifndef _STRSAFE_H_INCLUDED_
static inline HRESULT StringCchLengthA(const char* psz, size_t cchMax, size_t* pcch)
{
HRESULT hr = S_OK;
size_t cchMaxPrev = cchMax;
if (cchMax > 2147483647)
{
return ERROR_INVALID_PARAMETER;
}
while (cchMax && (*psz != '\0'))
{
psz++;
cchMax--;
}
if (cchMax == 0)
{
// the string is longer than cchMax
hr = ERROR_INVALID_PARAMETER;
}
if (SUCCEEDED(hr) && pcch)
{
*pcch = cchMaxPrev - cchMax;
}
return hr;
}
static inline HRESULT StringCchCopyA(char* pszDest, size_t cchDest, const char* pszSrc)
{
HRESULT hr = S_OK;
if (cchDest == 0)
{
// can not null terminate a zero-byte dest buffer
hr = ERROR_INVALID_PARAMETER;
}
else
{
while (cchDest && (*pszSrc != '\0'))
{
*pszDest++ = *pszSrc++;
cchDest--;
}
if (cchDest == 0)
{
// we are going to truncate pszDest
pszDest--;
hr = ERROR_INVALID_PARAMETER;
}
*pszDest= '\0';
}
return hr;
}
static inline HRESULT StringCchCatA(char* pszDest, size_t cchDest, const char* pszSrc)
{
HRESULT hr;
size_t cchDestCurrent;
if (cchDest > 2147483647)
{
return ERROR_INVALID_PARAMETER;
}
hr = StringCchLengthA(pszDest, cchDest, &cchDestCurrent);
if (SUCCEEDED(hr))
{
hr = StringCchCopyA(pszDest + cchDestCurrent,
cchDest - cchDestCurrent,
pszSrc);
}
return hr;
}
#endif
//////////////////////////////////////////////////////////////////////////////
//
#if IGNORE_CHECKSUMS
static WORD detour_sum_minus(WORD wSum, WORD wMinus)
{
wSum = (WORD)(wSum - ((wSum < wMinus) ? 1 : 0));
wSum = (WORD)(wSum - wMinus);
return wSum;
}
static WORD detour_sum_done(DWORD PartialSum)
{
// Fold final carry into a single word result and return the resultant value.
return (WORD)(((PartialSum >> 16) + PartialSum) & 0xffff);
}
static WORD detour_sum_data(DWORD dwSum, PBYTE pbData, DWORD cbData)
{
while (cbData > 0) {
dwSum += *((PWORD&)pbData)++;
dwSum = (dwSum >> 16) + (dwSum & 0xffff);
cbData -= sizeof(WORD);
}
return detour_sum_done(dwSum);
}
static WORD detour_sum_final(WORD wSum, PIMAGE_NT_HEADERS pinh)
{
DETOUR_TRACE((".... : %08x (value: %08x)\n", wSum, pinh->OptionalHeader.CheckSum));
// Subtract the two checksum words in the optional header from the computed.
wSum = detour_sum_minus(wSum, ((PWORD)(&pinh->OptionalHeader.CheckSum))[0]);
wSum = detour_sum_minus(wSum, ((PWORD)(&pinh->OptionalHeader.CheckSum))[1]);
return wSum;
}
static WORD ChkSumRange(WORD wSum, HANDLE hProcess, PBYTE pbBeg, PBYTE pbEnd)
{
BYTE rbPage[4096];
while (pbBeg < pbEnd) {
if (!ReadProcessMemory(hProcess, pbBeg, rbPage, sizeof(rbPage), NULL)) {
DETOUR_TRACE(("ReadProcessMemory(chk@%p..%p) failed: %d\n",
pbBeg, pbEnd, GetLastError()));
break;
}
wSum = detour_sum_data(wSum, rbPage, sizeof(rbPage));
pbBeg += sizeof(rbPage);
}
return wSum;
}
static WORD ComputeChkSum(HANDLE hProcess, PBYTE pbModule, PIMAGE_NT_HEADERS pinh)
{
// See LdrVerifyMappedImageMatchesChecksum.
MEMORY_BASIC_INFORMATION mbi;
ZeroMemory(&mbi, sizeof(mbi));
WORD wSum = 0;
PBYTE pbLast = pbModule;
for (;; pbLast = (PBYTE)mbi.BaseAddress + mbi.RegionSize) {
ZeroMemory(&mbi, sizeof(mbi));
if (VirtualQueryEx(hProcess, (PVOID)pbLast, &mbi, sizeof(mbi)) == 0) {
if (GetLastError() == ERROR_INVALID_PARAMETER) {
break;
}
DETOUR_TRACE(("VirtualQueryEx(%p) failed: %d\n",
pbLast, GetLastError()));
break;
}
if (mbi.AllocationBase != pbModule) {
break;
}
wSum = ChkSumRange(wSum,
hProcess,
(PBYTE)mbi.BaseAddress,
(PBYTE)mbi.BaseAddress + mbi.RegionSize);
DETOUR_TRACE(("[%p..%p] : %04x\n",
(PBYTE)mbi.BaseAddress,
(PBYTE)mbi.BaseAddress + mbi.RegionSize,
wSum));
}
return detour_sum_final(wSum, pinh);
}
#endif // IGNORE_CHECKSUMS
//////////////////////////////////////////////////////////////////////////////
//
// Enumate through modules in the target process.
//
static HMODULE WINAPI EnumerateModulesInProcess(HANDLE hProcess,
HMODULE hModuleLast,
PIMAGE_NT_HEADERS32 pNtHeader)
{
PBYTE pbLast;
if (hModuleLast == NULL) {
pbLast = (PBYTE)0x10000;
}
else {
pbLast = (PBYTE)hModuleLast + 0x10000;
}
MEMORY_BASIC_INFORMATION mbi;
ZeroMemory(&mbi, sizeof(mbi));
// Find the next memory region that contains a mapped PE image.
//
for (;; pbLast = (PBYTE)mbi.BaseAddress + mbi.RegionSize) {
if (VirtualQueryEx(hProcess, (PVOID)pbLast, &mbi, sizeof(mbi)) == 0) {
break;
}
if ((mbi.RegionSize & 0xfff) == 0xfff) {
break;
}
if (((PBYTE)mbi.BaseAddress + mbi.RegionSize) < pbLast) {
break;
}
// Skip uncommitted regions and guard pages.
//
if ((mbi.State != MEM_COMMIT) ||
((mbi.Protect & 0xff) == PAGE_NOACCESS) ||
(mbi.Protect & PAGE_GUARD)) {
continue;
}
__try {
IMAGE_DOS_HEADER idh;
if (!ReadProcessMemory(hProcess, pbLast, &idh, sizeof(idh), NULL)) {
DETOUR_TRACE(("ReadProcessMemory(idh@%p..%p) failed: %d\n",
pbLast, pbLast + sizeof(idh), GetLastError()));
continue;
}
if (idh.e_magic != IMAGE_DOS_SIGNATURE ||
(DWORD)idh.e_lfanew > mbi.RegionSize ||
(DWORD)idh.e_lfanew < sizeof(idh)) {
continue;
}
if (!ReadProcessMemory(hProcess, pbLast + idh.e_lfanew,
pNtHeader, sizeof(*pNtHeader), NULL)) {
DETOUR_TRACE(("ReadProcessMemory(inh@%p..%p:%p) failed: %d\n",
pbLast + idh.e_lfanew,
pbLast + idh.e_lfanew + sizeof(*pNtHeader),
pbLast,
GetLastError()));
continue;
}
if (pNtHeader->Signature != IMAGE_NT_SIGNATURE) {
continue;
}
return (HMODULE)pbLast;
}
__except(EXCEPTION_EXECUTE_HANDLER) {
continue;
}
}
return NULL;
}
//////////////////////////////////////////////////////////////////////////////
//
// Find a region of memory in which we can create a replacement import table.
//
static PBYTE FindAndAllocateNearBase(HANDLE hProcess, PBYTE pbBase, DWORD cbAlloc)
{
MEMORY_BASIC_INFORMATION mbi;
ZeroMemory(&mbi, sizeof(mbi));
PBYTE pbLast = pbBase;
for (;; pbLast = (PBYTE)mbi.BaseAddress + mbi.RegionSize) {
ZeroMemory(&mbi, sizeof(mbi));
if (VirtualQueryEx(hProcess, (PVOID)pbLast, &mbi, sizeof(mbi)) == 0) {
if (GetLastError() == ERROR_INVALID_PARAMETER) {
break;
}
DETOUR_TRACE(("VirtualQueryEx(%p) failed: %d\n",
pbLast, GetLastError()));
break;
}
if ((mbi.RegionSize & 0xfff) == 0xfff) {
break;
}
// Skip anything other than a pure free region.
//
if (mbi.State != MEM_FREE) {
continue;
}
PBYTE pbAddress = (PBYTE)(((DWORD_PTR)mbi.BaseAddress + 0xffff) & ~(DWORD_PTR)0xffff);
DETOUR_TRACE(("Free region %p..%p\n",
mbi.BaseAddress,
(PBYTE)mbi.BaseAddress + mbi.RegionSize));
for (; pbAddress < (PBYTE)mbi.BaseAddress + mbi.RegionSize; pbAddress += 0x10000) {
PBYTE pbAlloc = (PBYTE)VirtualAllocEx(hProcess, pbAddress, cbAlloc,
MEM_RESERVE, PAGE_READWRITE);
if (pbAlloc == NULL) {
DETOUR_TRACE(("VirtualAllocEx(%p) failed: %d\n", pbAddress, GetLastError()));
continue;
}
pbAlloc = (PBYTE)VirtualAllocEx(hProcess, pbAddress, cbAlloc,
MEM_COMMIT, PAGE_READWRITE);
if (pbAlloc == NULL) {
DETOUR_TRACE(("VirtualAllocEx(%p) failed: %d\n", pbAddress, GetLastError()));
continue;
}
DETOUR_TRACE(("[%p..%p] Allocated for import table.\n",
pbAlloc, pbAlloc + cbAlloc));
return pbAlloc;
}
}
return NULL;
}
static inline DWORD PadToDword(DWORD dw)
{
return (dw + 3) & ~3u;
}
static inline DWORD PadToDwordPtr(DWORD dw)
{
return (dw + 7) & ~7u;
}
static inline HRESULT ReplaceOptionalSizeA(char* pszDest,
size_t cchDest,
const char* pszSize)
{
if (cchDest == 0 || pszDest == NULL || pszSize == NULL ||
pszSize[0] == '\0' || pszSize[1] == '\0' || pszSize[2] != '\0') {
// can not write into empty buffer or with string other than two chars.
return ERROR_INVALID_PARAMETER;
}
else {
for (; cchDest >= 2; cchDest--, pszDest++) {
if (pszDest[0] == '?' && pszDest[1] == '?') {
pszDest[0] = pszSize[0];
pszDest[1] = pszSize[1];
break;
}
}
}
return S_OK;
}
//////////////////////////////////////////////////////////////////////////////
//
#ifdef DETOURS_32BIT
#define DWORD_XX DWORD32
#define IMAGE_NT_HEADERS_XX IMAGE_NT_HEADERS32
#define IMAGE_NT_OPTIONAL_HDR_MAGIC_XX IMAGE_NT_OPTIONAL_HDR32_MAGIC
#define IMAGE_ORDINAL_FLAG_XX IMAGE_ORDINAL_FLAG32
#define UPDATE_IMPORTS_XX UpdateImports32
#define DETOURS_BITS_XX 32
#include "uimports.cpp"
#undef DETOUR_EXE_RESTORE_FIELD_XX
#undef DWORD_XX
#undef IMAGE_NT_HEADERS_XX
#undef IMAGE_NT_OPTIONAL_HDR_MAGIC_XX
#undef IMAGE_ORDINAL_FLAG_XX
#undef UPDATE_IMPORTS_XX
#endif // DETOURS_32BIT
#ifdef DETOURS_64BIT
#define DWORD_XX DWORD64
#define IMAGE_NT_HEADERS_XX IMAGE_NT_HEADERS64
#define IMAGE_NT_OPTIONAL_HDR_MAGIC_XX IMAGE_NT_OPTIONAL_HDR64_MAGIC
#define IMAGE_ORDINAL_FLAG_XX IMAGE_ORDINAL_FLAG64
#define UPDATE_IMPORTS_XX UpdateImports64
#define DETOURS_BITS_XX 64
#include "uimports.cpp"
#undef DETOUR_EXE_RESTORE_FIELD_XX
#undef DWORD_XX
#undef IMAGE_NT_HEADERS_XX
#undef IMAGE_NT_OPTIONAL_HDR_MAGIC_XX
#undef IMAGE_ORDINAL_FLAG_XX
#undef UPDATE_IMPORTS_XX
#endif // DETOURS_64BIT
//////////////////////////////////////////////////////////////////////////////
//
#if DETOURS_64BIT
C_ASSERT(sizeof(IMAGE_NT_HEADERS64) == sizeof(IMAGE_NT_HEADERS32) + 16);
static BOOL UpdateFrom32To64(HANDLE hProcess, HANDLE hModule, WORD machine)
{
IMAGE_DOS_HEADER idh;
IMAGE_NT_HEADERS32 inh32;
IMAGE_NT_HEADERS64 inh64;
IMAGE_SECTION_HEADER sects[32];
PBYTE pbModule = (PBYTE)hModule;
DWORD n;
ZeroMemory(&inh32, sizeof(inh32));
ZeroMemory(&inh64, sizeof(inh64));
ZeroMemory(sects, sizeof(sects));
DETOUR_TRACE(("UpdateFrom32To64(%04x)\n", machine));
//////////////////////////////////////////////////////// Read old headers.
//
if (!ReadProcessMemory(hProcess, pbModule, &idh, sizeof(idh), NULL)) {
DETOUR_TRACE(("ReadProcessMemory(idh@%p..%p) failed: %d\n",
pbModule, pbModule + sizeof(idh), GetLastError()));
return FALSE;
}
DETOUR_TRACE(("ReadProcessMemory(idh@%p..%p)\n",
pbModule, pbModule + sizeof(idh)));
PBYTE pnh = pbModule + idh.e_lfanew;
if (!ReadProcessMemory(hProcess, pnh, &inh32, sizeof(inh32), NULL)) {
DETOUR_TRACE(("ReadProcessMemory(inh@%p..%p) failed: %d\n",
pnh, pnh + sizeof(inh32), GetLastError()));
return FALSE;
}
DETOUR_TRACE(("ReadProcessMemory(inh@%p..%p)\n", pnh, pnh + sizeof(inh32)));
if (inh32.FileHeader.NumberOfSections > (sizeof(sects)/sizeof(sects[0]))) {
return FALSE;
}
PBYTE psects = pnh +
FIELD_OFFSET(IMAGE_NT_HEADERS, OptionalHeader) +
inh32.FileHeader.SizeOfOptionalHeader;
ULONG cb = inh32.FileHeader.NumberOfSections * sizeof(IMAGE_SECTION_HEADER);
if (!ReadProcessMemory(hProcess, psects, §s, cb, NULL)) {
DETOUR_TRACE(("ReadProcessMemory(ish@%p..%p) failed: %d\n",
psects, psects + cb, GetLastError()));
return FALSE;
}
DETOUR_TRACE(("ReadProcessMemory(ish@%p..%p)\n", psects, psects + cb));
////////////////////////////////////////////////////////// Convert header.
//
inh64.Signature = inh32.Signature;
inh64.FileHeader = inh32.FileHeader;
inh64.FileHeader.Machine = machine;
inh64.FileHeader.SizeOfOptionalHeader = sizeof(IMAGE_OPTIONAL_HEADER64);
inh64.OptionalHeader.Magic = IMAGE_NT_OPTIONAL_HDR64_MAGIC;
inh64.OptionalHeader.MajorLinkerVersion = inh32.OptionalHeader.MajorLinkerVersion;
inh64.OptionalHeader.MinorLinkerVersion = inh32.OptionalHeader.MinorLinkerVersion;
inh64.OptionalHeader.SizeOfCode = inh32.OptionalHeader.SizeOfCode;
inh64.OptionalHeader.SizeOfInitializedData = inh32.OptionalHeader.SizeOfInitializedData;
inh64.OptionalHeader.SizeOfUninitializedData = inh32.OptionalHeader.SizeOfUninitializedData;
inh64.OptionalHeader.AddressOfEntryPoint = inh32.OptionalHeader.AddressOfEntryPoint;
inh64.OptionalHeader.BaseOfCode = inh32.OptionalHeader.BaseOfCode;
inh64.OptionalHeader.ImageBase = inh32.OptionalHeader.ImageBase;
inh64.OptionalHeader.SectionAlignment = inh32.OptionalHeader.SectionAlignment;
inh64.OptionalHeader.FileAlignment = inh32.OptionalHeader.FileAlignment;
inh64.OptionalHeader.MajorOperatingSystemVersion
= inh32.OptionalHeader.MajorOperatingSystemVersion;
inh64.OptionalHeader.MinorOperatingSystemVersion
= inh32.OptionalHeader.MinorOperatingSystemVersion;
inh64.OptionalHeader.MajorImageVersion = inh32.OptionalHeader.MajorImageVersion;
inh64.OptionalHeader.MinorImageVersion = inh32.OptionalHeader.MinorImageVersion;
inh64.OptionalHeader.MajorSubsystemVersion = inh32.OptionalHeader.MajorSubsystemVersion;
inh64.OptionalHeader.MinorSubsystemVersion = inh32.OptionalHeader.MinorSubsystemVersion;
inh64.OptionalHeader.Win32VersionValue = inh32.OptionalHeader.Win32VersionValue;
inh64.OptionalHeader.SizeOfImage = inh32.OptionalHeader.SizeOfImage;
inh64.OptionalHeader.SizeOfHeaders = inh32.OptionalHeader.SizeOfHeaders;
inh64.OptionalHeader.CheckSum = inh32.OptionalHeader.CheckSum;
inh64.OptionalHeader.Subsystem = inh32.OptionalHeader.Subsystem;
inh64.OptionalHeader.DllCharacteristics = inh32.OptionalHeader.DllCharacteristics;
inh64.OptionalHeader.SizeOfStackReserve = inh32.OptionalHeader.SizeOfStackReserve;
inh64.OptionalHeader.SizeOfStackCommit = inh32.OptionalHeader.SizeOfStackCommit;
inh64.OptionalHeader.SizeOfHeapReserve = inh32.OptionalHeader.SizeOfHeapReserve;
inh64.OptionalHeader.SizeOfHeapCommit = inh32.OptionalHeader.SizeOfHeapCommit;
inh64.OptionalHeader.LoaderFlags = inh32.OptionalHeader.LoaderFlags;
inh64.OptionalHeader.NumberOfRvaAndSizes = inh32.OptionalHeader.NumberOfRvaAndSizes;
for (n = 0; n < IMAGE_NUMBEROF_DIRECTORY_ENTRIES; n++) {
inh64.OptionalHeader.DataDirectory[n] = inh32.OptionalHeader.DataDirectory[n];
}
inh64.IMPORT_DIRECTORY.VirtualAddress = 0;
inh64.IMPORT_DIRECTORY.Size = 0;
/////////////////////////////////////////////////////// Write new headers.
//
DWORD dwProtect = 0;
if (!VirtualProtectEx(hProcess, pbModule, inh64.OptionalHeader.SizeOfHeaders,
PAGE_EXECUTE_READWRITE, &dwProtect)) {
return FALSE;
}
if (!WriteProcessMemory(hProcess, pnh, &inh64, sizeof(inh64), NULL)) {
DETOUR_TRACE(("WriteProcessMemory(inh@%p..%p) failed: %d\n",
pnh, pnh + sizeof(inh64), GetLastError()));
return FALSE;
}
DETOUR_TRACE(("WriteProcessMemory(inh@%p..%p)\n", pnh, pnh + sizeof(inh64)));
psects = pnh +
FIELD_OFFSET(IMAGE_NT_HEADERS, OptionalHeader) +
inh64.FileHeader.SizeOfOptionalHeader;
cb = inh64.FileHeader.NumberOfSections * sizeof(IMAGE_SECTION_HEADER);
if (!WriteProcessMemory(hProcess, psects, §s, cb, NULL)) {
DETOUR_TRACE(("WriteProcessMemory(ish@%p..%p) failed: %d\n",
psects, psects + cb, GetLastError()));
return FALSE;
}
DETOUR_TRACE(("WriteProcessMemory(ish@%p..%p)\n", psects, psects + cb));
DWORD dwOld = 0;
if (!VirtualProtectEx(hProcess, pbModule, inh64.OptionalHeader.SizeOfHeaders,
dwProtect, &dwOld)) {
return FALSE;
}
return TRUE;
}
#endif // DETOURS_64BIT
//////////////////////////////////////////////////////////////////////////////
//
BOOL WINAPI DetourUpdateProcessWithDll(HANDLE hProcess, LPCSTR *plpDlls, DWORD nDlls)
{
// Find the next memory region that contains a mapped PE image.
//
WORD mach32Bit = 0;
WORD mach64Bit = 0;
WORD exe32Bit = 0;
HMODULE hModule = NULL;
HMODULE hLast = NULL;
for (;;) {
IMAGE_NT_HEADERS32 inh;
if ((hLast = EnumerateModulesInProcess(hProcess, hLast, &inh)) == NULL) {
break;
}
DETOUR_TRACE(("%p machine=%04x magic=%04x\n",
hLast, inh.FileHeader.Machine, inh.OptionalHeader.Magic));
if ((inh.FileHeader.Characteristics & IMAGE_FILE_DLL) == 0) {
hModule = hLast;
if (inh.OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR32_MAGIC) {
exe32Bit = inh.FileHeader.Machine;
}
DETOUR_TRACE(("%p Found EXE\n", hLast));
}
else {
if (inh.OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR32_MAGIC) {
mach32Bit = inh.FileHeader.Machine;
}
else if (inh.OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC) {
mach64Bit = inh.FileHeader.Machine;
}
}
}
DETOUR_TRACE((" mach32Bit=%04x mach64Bit=%04x\n", mach32Bit, mach64Bit));
if (hModule == NULL) {
SetLastError(ERROR_INVALID_OPERATION);
return FALSE;
}
// Save the various headers for DetourRestoreAfterWith.
//
DETOUR_EXE_RESTORE der;
ZeroMemory(&der, sizeof(der));
der.cb = sizeof(der);
der.pidh = (PBYTE)hModule;
der.cbidh = sizeof(der.idh);
if (!ReadProcessMemory(hProcess, der.pidh, &der.idh, sizeof(der.idh), NULL)) {
DETOUR_TRACE(("ReadProcessMemory(idh@%p..%p) failed: %d\n",
der.pidh, der.pidh + der.cbidh, GetLastError()));
return FALSE;
}
DETOUR_TRACE(("IDH: %p..%p\n", der.pidh, der.pidh + der.cbidh));
// We read the NT header in two passes to get the full size.
// First we read just the Signature and FileHeader.
der.pinh = der.pidh + der.idh.e_lfanew;
der.cbinh = FIELD_OFFSET(IMAGE_NT_HEADERS, OptionalHeader);
if (!ReadProcessMemory(hProcess, der.pinh, &der.inh, der.cbinh, NULL)) {
DETOUR_TRACE(("ReadProcessMemory(inh@%p..%p) failed: %d\n",
der.pinh, der.pinh + der.cbinh, GetLastError()));
return FALSE;
}
// Second we read the OptionalHeader and Section headers.
der.cbinh = (FIELD_OFFSET(IMAGE_NT_HEADERS, OptionalHeader) +
der.inh.FileHeader.SizeOfOptionalHeader +
der.inh.FileHeader.NumberOfSections * sizeof(IMAGE_SECTION_HEADER));
#if DETOURS_64BIT
if (exe32Bit && !mach32Bit) {
// Include the Save the extra 16-bytes that will be overwritten with 64-bit header.
der.cbinh += sizeof(IMAGE_NT_HEADERS64) - sizeof(IMAGE_NT_HEADERS32);
}
#endif // DETOURS_64BIT
if (der.cbinh > sizeof(der.raw)) {
return FALSE;
}
if (!ReadProcessMemory(hProcess, der.pinh, &der.inh, der.cbinh, NULL)) {
DETOUR_TRACE(("ReadProcessMemory(inh@%p..%p) failed: %d\n",
der.pinh, der.pinh + der.cbinh, GetLastError()));
return FALSE;
}
DETOUR_TRACE(("INH: %p..%p\n", der.pinh, der.pinh + der.cbinh));
// Third, we read the CLR header
if (der.inh.OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR32_MAGIC) {
if (der.inh32.CLR_DIRECTORY.VirtualAddress != 0 &&
der.inh32.CLR_DIRECTORY.Size != 0) {
}
DETOUR_TRACE(("CLR32.VirtAddr=%x, CLR.Size=%x\n",
der.inh32.CLR_DIRECTORY.VirtualAddress,
der.inh32.CLR_DIRECTORY.Size));
der.pclr = ((PBYTE)hModule) + der.inh32.CLR_DIRECTORY.VirtualAddress;
}
else if (der.inh.OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC) {
if (der.inh64.CLR_DIRECTORY.VirtualAddress != 0 &&
der.inh64.CLR_DIRECTORY.Size != 0) {
}
DETOUR_TRACE(("CLR64.VirtAddr=%x, CLR.Size=%x\n",
der.inh64.CLR_DIRECTORY.VirtualAddress,
der.inh64.CLR_DIRECTORY.Size));
der.pclr = ((PBYTE)hModule) + der.inh64.CLR_DIRECTORY.VirtualAddress;
}
if (der.pclr != 0) {
der.cbclr = sizeof(der.clr);
if (!ReadProcessMemory(hProcess, der.pclr, &der.clr, der.cbclr, NULL)) {
DETOUR_TRACE(("ReadProcessMemory(clr@%p..%p) failed: %d\n",
der.pclr, der.pclr + der.cbclr, GetLastError()));
return FALSE;
}
DETOUR_TRACE(("CLR: %p..%p\n", der.pclr, der.pclr + der.cbclr));
}
// Fourth, adjust for a 32-bit WOW64 process.
if (exe32Bit && mach64Bit) {
if (!der.pclr // Native binary
|| (der.clr.Flags & 1) == 0 // Or mixed-mode MSIL
|| (der.clr.Flags & 2) != 0) { // Or 32BIT Required MSIL
mach64Bit = 0;
if (mach32Bit == 0) {
mach32Bit = exe32Bit;
}
}
}
// Now decide if we can insert the detour.
#ifdef DETOURS_32BIT
if (!mach32Bit && mach64Bit) {
// 64-bit native or 64-bit managed process.
//
// Can't detour a 64-bit process with 32-bit code.
// Note: This happens for 32-bit PE binaries containing only
// manage code that have been marked as 64-bit ready.
//
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
else if (mach32Bit) {
// 32-bit native or 32-bit managed process on any platform.
if (!UpdateImports32(hProcess, hModule, plpDlls, nDlls)) {
return FALSE;
}
}
else {
// Who knows!?
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
#endif // DETOURS_32BIT
#ifdef DETOURS_64BIT
if (mach32Bit) {
// Can't detour a 32-bit process with 64-bit code.
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
else if (exe32Bit && !mach32Bit) {
// Try to convert the 32-bit managed binary to a 64-bit managed binary.
if (!UpdateFrom32To64(hProcess, hModule, mach64Bit)) {
return FALSE;
}
// 64-bit process from 32-bit managed binary.
if (!UpdateImports64(hProcess, hModule, plpDlls, nDlls)) {
return FALSE;
}
}
else if (mach64Bit) {
// 64-bit native or 64-bit managed process on any platform.
if (!UpdateImports64(hProcess, hModule, plpDlls, nDlls)) {
return FALSE;
}
}
else {
// Who knows!?
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
#endif // DETOURS_64BIT
/////////////////////////////////////////////////// Update the CLR header.
//
if (der.pclr != NULL) {
DETOUR_CLR_HEADER clr;
CopyMemory(&clr, &der.clr, sizeof(clr));
clr.Flags &= 0xfffffffe; // Clear the IL_ONLY flag.
DWORD dwProtect;
if (!VirtualProtectEx(hProcess, der.pclr, sizeof(clr), PAGE_READWRITE, &dwProtect)) {
DETOUR_TRACE(("VirtualProtectEx(clr) write failed: %d\n", GetLastError()));
return FALSE;
}
if (!WriteProcessMemory(hProcess, der.pclr, &clr, sizeof(clr), NULL)) {
DETOUR_TRACE(("WriteProcessMemory(clr) failed: %d\n", GetLastError()));
return FALSE;
}
if (!VirtualProtectEx(hProcess, der.pclr, sizeof(clr), dwProtect, &dwProtect)) {
DETOUR_TRACE(("VirtualProtectEx(clr) restore failed: %d\n", GetLastError()));
return FALSE;
}
DETOUR_TRACE(("CLR: %p..%p\n", der.pclr, der.pclr + der.cbclr));
#if DETOURS_64BIT
if (der.clr.Flags & 0x2) { // Is the 32BIT Required Flag set?
// X64 never gets here because the process appears as a WOW64 process.
// However, on IA64, it doesn't appear to be a WOW process.
DETOUR_TRACE(("CLR Requires 32-bit\n", der.pclr, der.pclr + der.cbclr));
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
#endif // DETOURS_64BIT
}
//////////////////////////////// Save the undo data to the target process.
//
if (!DetourCopyPayloadToProcess(hProcess, DETOUR_EXE_RESTORE_GUID, &der, sizeof(der))) {
DETOUR_TRACE(("DetourCopyPayloadToProcess failed: %d\n", GetLastError()));
return FALSE;
}
return TRUE;
}
//////////////////////////////////////////////////////////////////////////////
//
BOOL WINAPI DetourCreateProcessWithDllA(LPCSTR lpApplicationName,
__in_z LPSTR lpCommandLine,
LPSECURITY_ATTRIBUTES lpProcessAttributes,
LPSECURITY_ATTRIBUTES lpThreadAttributes,
BOOL bInheritHandles,
DWORD dwCreationFlags,
LPVOID lpEnvironment,
LPCSTR lpCurrentDirectory,
LPSTARTUPINFOA lpStartupInfo,
LPPROCESS_INFORMATION lpProcessInformation,
LPCSTR lpDllName,
PDETOUR_CREATE_PROCESS_ROUTINEA pfCreateProcessA)
{
DWORD dwMyCreationFlags = (dwCreationFlags | CREATE_SUSPENDED);
PROCESS_INFORMATION pi;
if (pfCreateProcessA == NULL) {
pfCreateProcessA = CreateProcessA;
}
if (!pfCreateProcessA(lpApplicationName,
lpCommandLine,
lpProcessAttributes,
lpThreadAttributes,
bInheritHandles,
dwMyCreationFlags,
lpEnvironment,
lpCurrentDirectory,
lpStartupInfo,
&pi)) {
return FALSE;
}
LPCSTR rlpDlls[2];
DWORD nDlls = 0;
if (lpDllName != NULL) {
rlpDlls[nDlls++] = lpDllName;
}
if (!DetourUpdateProcessWithDll(pi.hProcess, rlpDlls, nDlls)) {
TerminateProcess(pi.hProcess, ~0u);
return FALSE;
}
if (lpProcessInformation) {
CopyMemory(lpProcessInformation, &pi, sizeof(pi));
}
if (!(dwCreationFlags & CREATE_SUSPENDED)) {
ResumeThread(pi.hThread);
}
return TRUE;
}
BOOL WINAPI DetourCreateProcessWithDllW(LPCWSTR lpApplicationName,
__in_z LPWSTR lpCommandLine,
LPSECURITY_ATTRIBUTES lpProcessAttributes,
LPSECURITY_ATTRIBUTES lpThreadAttributes,
BOOL bInheritHandles,
DWORD dwCreationFlags,
LPVOID lpEnvironment,
LPCWSTR lpCurrentDirectory,
LPSTARTUPINFOW lpStartupInfo,
LPPROCESS_INFORMATION lpProcessInformation,
LPCSTR lpDllName,
PDETOUR_CREATE_PROCESS_ROUTINEW pfCreateProcessW)
{
DWORD dwMyCreationFlags = (dwCreationFlags | CREATE_SUSPENDED);
PROCESS_INFORMATION pi;
if (pfCreateProcessW == NULL) {
pfCreateProcessW = CreateProcessW;
}
if (!pfCreateProcessW(lpApplicationName,
lpCommandLine,
lpProcessAttributes,
lpThreadAttributes,
bInheritHandles,
dwMyCreationFlags,
lpEnvironment,
lpCurrentDirectory,
lpStartupInfo,
&pi)) {
return FALSE;
}
LPCSTR rlpDlls[2];
DWORD nDlls = 0;
if (lpDllName != NULL) {
rlpDlls[nDlls++] = lpDllName;
}
if (!DetourUpdateProcessWithDll(pi.hProcess, rlpDlls, nDlls)) {
TerminateProcess(pi.hProcess, ~0u);
return FALSE;
}
if (lpProcessInformation) {
CopyMemory(lpProcessInformation, &pi, sizeof(pi));
}
if (!(dwCreationFlags & CREATE_SUSPENDED)) {
ResumeThread(pi.hThread);
}
return TRUE;
}
BOOL WINAPI DetourCopyPayloadToProcess(HANDLE hProcess,
REFGUID rguid,
PVOID pData,
DWORD cbData)
{
DWORD cbTotal = (sizeof(IMAGE_DOS_HEADER) +
sizeof(IMAGE_NT_HEADERS) +
sizeof(IMAGE_SECTION_HEADER) +
sizeof(DETOUR_SECTION_HEADER) +
sizeof(DETOUR_SECTION_RECORD) +
cbData);
PBYTE pbBase = (PBYTE)VirtualAllocEx(hProcess, NULL, cbTotal,
MEM_COMMIT, PAGE_READWRITE);
if (pbBase == NULL) {
DETOUR_TRACE(("VirtualAllocEx(%d) failed: %d\n", cbTotal, GetLastError()));
return FALSE;
}
PBYTE pbTarget = pbBase;
IMAGE_DOS_HEADER idh;
IMAGE_NT_HEADERS inh;
IMAGE_SECTION_HEADER ish;
DETOUR_SECTION_HEADER dsh;
DETOUR_SECTION_RECORD dsr;
SIZE_T cbWrote = 0;
ZeroMemory(&idh, sizeof(idh));
idh.e_magic = IMAGE_DOS_SIGNATURE;
idh.e_lfanew = sizeof(idh);
if (!WriteProcessMemory(hProcess, pbTarget, &idh, sizeof(idh), &cbWrote) ||
cbWrote != sizeof(idh)) {
DETOUR_TRACE(("WriteProcessMemory(idh) failed: %d\n", GetLastError()));
return FALSE;
}
pbTarget += sizeof(idh);
ZeroMemory(&inh, sizeof(inh));
inh.Signature = IMAGE_NT_SIGNATURE;
inh.FileHeader.SizeOfOptionalHeader = sizeof(inh.OptionalHeader);
inh.FileHeader.Characteristics = IMAGE_FILE_DLL;
inh.FileHeader.NumberOfSections = 1;
inh.OptionalHeader.Magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
if (!WriteProcessMemory(hProcess, pbTarget, &inh, sizeof(inh), &cbWrote) ||
cbWrote != sizeof(inh)) {
return FALSE;
}
pbTarget += sizeof(inh);
ZeroMemory(&ish, sizeof(ish));
memcpy(ish.Name, ".detour", sizeof(ish.Name));
ish.VirtualAddress = (DWORD)((pbTarget + sizeof(ish)) - pbBase);
ish.SizeOfRawData = (sizeof(DETOUR_SECTION_HEADER) +
sizeof(DETOUR_SECTION_RECORD) +
cbData);
if (!WriteProcessMemory(hProcess, pbTarget, &ish, sizeof(ish), &cbWrote) ||
cbWrote != sizeof(ish)) {
return FALSE;
}
pbTarget += sizeof(ish);
ZeroMemory(&dsh, sizeof(dsh));
dsh.cbHeaderSize = sizeof(dsh);
dsh.nSignature = DETOUR_SECTION_HEADER_SIGNATURE;
dsh.nDataOffset = sizeof(DETOUR_SECTION_HEADER);
dsh.cbDataSize = (sizeof(DETOUR_SECTION_HEADER) +
sizeof(DETOUR_SECTION_RECORD) +
cbData);
if (!WriteProcessMemory(hProcess, pbTarget, &dsh, sizeof(dsh), &cbWrote) ||
cbWrote != sizeof(dsh)) {
return FALSE;
}
pbTarget += sizeof(dsh);
ZeroMemory(&dsr, sizeof(dsr));
dsr.cbBytes = cbData + sizeof(DETOUR_SECTION_RECORD);
dsr.nReserved = 0;
dsr.guid = rguid;
if (!WriteProcessMemory(hProcess, pbTarget, &dsr, sizeof(dsr), &cbWrote) ||
cbWrote != sizeof(dsr)) {
return FALSE;
}
pbTarget += sizeof(dsr);
if (!WriteProcessMemory(hProcess, pbTarget, pData, cbData, &cbWrote) ||
cbWrote != cbData) {
return FALSE;
}
pbTarget += cbData;
DETOUR_TRACE(("Copied %d byte payload into target process at %p\n",
cbTotal, pbTarget - cbTotal));
return TRUE;
}
static BOOL fSearchedForHelper = FALSE;
static PDETOUR_EXE_HELPER pHelper = NULL;
VOID CALLBACK DetourFinishHelperProcess(HWND, HINSTANCE, LPSTR, INT)
{
HANDLE hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, pHelper->pid);
if (hProcess == NULL) {
DETOUR_TRACE(("OpenProcess(pid=%d) failed: %d\n",