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Copy pathMY_API.cpp
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428 lines (331 loc) · 13.1 KB
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#include "TOOL.h"
#include <iostream>
#include<windows.h>
//字符串哈希算法
DWORD Hash_GetDigest(char* strFunName)
{
//字符串长度大于3保证Hash值中不包含0
DWORD dwDigest = 0;
while (*strFunName)
{
dwDigest = (dwDigest << 25 | dwDigest >> 7);
dwDigest += *strFunName;
strFunName++;
}
return dwDigest;
}
bool Hash_CmpString(char* strFunName, int nHash)
{
unsigned int nDigest = 0;
while (*strFunName)
{
nDigest = ((nDigest << 25) | (nDigest >> 7));
nDigest = nDigest + *strFunName;
strFunName++;
}
return nHash == nDigest ? true : false;
}
bool _Is_64Peformat(char* lpPeBufer)
{
PIMAGE_FILE_HEADER _File = (PIMAGE_FILE_HEADER) & ((PIMAGE_NT_HEADERS)((((PIMAGE_DOS_HEADER)lpPeBufer)->e_lfanew) + lpPeBufer))->FileHeader;
if (_File->Machine == IMAGE_FILE_MACHINE_AMD64 ||
_File->Machine == IMAGE_FILE_MACHINE_IA64) // may be IMAGE_FILE_MACHINE_I386
{
return TRUE;
}
else
{
return FALSE;
}
}
DWORD64 GetFunAddrByHash(int nHashDigest, HMODULE hModule)
{
// 1. 获取DOS头、NT头
PIMAGE_DOS_HEADER pDos_Header;
// 2. 获取导出表项
PIMAGE_DATA_DIRECTORY pDataDir;
PIMAGE_EXPORT_DIRECTORY pExport;
pDos_Header = (PIMAGE_DOS_HEADER)hModule;
if (_Is_64Peformat((char*)(hModule)) == TRUE)
{
PIMAGE_NT_HEADERS64 pNt_Header;
pNt_Header = (PIMAGE_NT_HEADERS64)((DWORD64)hModule + pDos_Header->e_lfanew);
pDataDir = pNt_Header->OptionalHeader.DataDirectory + IMAGE_DIRECTORY_ENTRY_EXPORT;
}
else
{
PIMAGE_NT_HEADERS pNt_Header;
pNt_Header = (PIMAGE_NT_HEADERS)((DWORD64)hModule + pDos_Header->e_lfanew);
pDataDir = pNt_Header->OptionalHeader.DataDirectory + IMAGE_DIRECTORY_ENTRY_EXPORT;
}
pExport = (PIMAGE_EXPORT_DIRECTORY)((DWORD64)hModule + pDataDir->VirtualAddress);
// 3. 获取导出表详细信息
PDWORD pAddrOfFun = (PDWORD)(pExport->AddressOfFunctions + (DWORD64)hModule);
PDWORD pAddrOfNames = (PDWORD)(pExport->AddressOfNames + (DWORD64)hModule);
PWORD pAddrOfOrdinals = (PWORD)(pExport->AddressOfNameOrdinals + (DWORD64)hModule);
// 4. 处理以函数名查找函数地址的请求，循环获取ENT中的函数名（因为是以函数名
// 为基准，因此不考虑无函数名的情况），并与传入值对比，如能匹配上则在EAT
// 中以指定序号作为索引，并取出其地址值。
DWORD64 dwFunAddr;
for (DWORD i = 0; i < pExport->NumberOfNames; i++)
{
PCHAR lpFunName = (PCHAR)(pAddrOfNames[i] + (DWORD64)hModule);
if (Hash_CmpString(lpFunName, nHashDigest))
{
dwFunAddr = pAddrOfFun[pAddrOfOrdinals[i]] + (DWORD64)hModule;
break;
}
if (i == pExport->NumberOfNames - 1)
return 0;
}
return dwFunAddr;
}
char* RetX32RunExeAdr(char* pExeAddr, HMODULE Kernel32)
{
// 1. 局部字符串
CHAR szUser32[] = { 'u','s','e','r','3','2','.','d','l','l','\0' };
CHAR szKernel32[] = { 'k','e','r','n','e','l','3','2','.','d','l','l','\0' };
CHAR szntdll[] = { 'n','t','d','l','l','.','d','l','l','\0' };
CHAR szCMD[] = { 'c','m','d','.','e','x','e','\0' };
CHAR csVirtualAlloc[] = { 'V','i','r','t','u','a','l','A','l','l','o','c' ,'\0' };
CHAR csVirtualProtect[] = { 'V','i','r','t','u','a','l','P','r','o','t','e','c','t','\0' };
CHAR csGetProcAddress[] = { 'G','e','t','P','r','o','c','A','d','d','r','e','s','s','\0' };
CHAR csCreateThread[] = { 'C','r','e','a','t','e','T','h','r','e','a','d' ,'\0' };
CHAR csWaitForSingleObject[] = { 'W','a','i','t','F','o','r','S','i','n','g','l','e','O','b','j','e','c','t','\0' };
// 2. 获取关键模块基址
HMODULE hKernel32By64 = 0;
HMODULE hNtDll = 0;
DWORD ImageBase = 0;
HMODULE hUser32 = 0;
// 3. 获取关键模块基址
DefineFuncPtr(LoadLibraryExA, Kernel32);
hKernel32By64 = My_LoadLibraryExA(szKernel32, 0, 0);
hNtDll = My_LoadLibraryExA(szntdll, 0, 0);
hUser32 = My_LoadLibraryExA(szUser32, 0, 0);
DefineFuncPtr(VirtualAlloc, hKernel32By64);
DefineFuncPtr(VirtualProtect, hKernel32By64);
DefineFuncPtr(CreateThread, hKernel32By64);
DefineFuncPtr(WaitForSingleObject, hKernel32By64);
DefineFuncPtr(GetProcAddress, hKernel32By64);
//User32
DefineFuncPtr(MessageBoxA, hUser32);
//ntdll
DefineFuncPtr(memcpy, hNtDll);
DefineFuncPtr(sprintf, hNtDll);
HANDLE hFile = NULL;
HANDLE hFileMaping = NULL;
//获取一些基本变量
//PE初始化
// PIMAGE_NT_HEADERS
PIMAGE_DOS_HEADER pDosHdr = (PIMAGE_DOS_HEADER)pExeAddr;
PIMAGE_NT_HEADERS pNtHdr = NULL;
PIMAGE_SECTION_HEADER pSectionHdr = NULL;
int SectionCount = 0;
int SectionAlignment = 0;
int FileAlignment = 0;
//--------------------------------------------------------------------------------------------------------------------------------------申请新内存
pNtHdr = (PIMAGE_NT_HEADERS)((DWORD)pExeAddr + ((PIMAGE_DOS_HEADER)pExeAddr)->e_lfanew);
pSectionHdr = (PIMAGE_SECTION_HEADER)((DWORD)&pNtHdr->OptionalHeader + pNtHdr->FileHeader.SizeOfOptionalHeader);
SectionCount = pNtHdr->FileHeader.NumberOfSections; //区段数
SectionAlignment = pNtHdr->OptionalHeader.SectionAlignment; //内存对其方式
FileAlignment = pNtHdr->OptionalHeader.FileAlignment; //文件对其方式
//申请一个载入 内存后大小的空间
PVOID pNewPe = My_VirtualAlloc(NULL, pNtHdr->OptionalHeader.SizeOfImage, MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE);
if (pNewPe == NULL)
{
return 0;
}
//拉伸PE 扩展块
My_memcpy((void*)pNewPe, (void*)pDosHdr, pNtHdr->OptionalHeader.SizeOfHeaders);
for (int i = 0; i < SectionCount; i++)
{
My_memcpy(
(void*)((DWORD)pNewPe + pSectionHdr[i].VirtualAddress), //VirtualAddress Rva 直接 加PE Va即可
(void*)((DWORD)pExeAddr + pSectionHdr[i].PointerToRawData), //直接从文件区段读取即可
pSectionHdr[i].SizeOfRawData); //拷贝区段大小
}
//-------------------------------------------------------------------------------------------------------------------------------------修复导入表
PIMAGE_IMPORT_DESCRIPTOR pImportTable = (PIMAGE_IMPORT_DESCRIPTOR)((DWORD)pNewPe + pNtHdr->OptionalHeader.DataDirectory[1].VirtualAddress);
do
{
const char* pDllPath = (const char*)(pImportTable->Name + (DWORD)pNewPe);
PDWORD pIat = (PDWORD)(pImportTable->FirstThunk + (DWORD)pNewPe);
if (*pIat == NULL)
{
pImportTable++;
continue;
}
HMODULE hModule = My_LoadLibraryExA(pDllPath, 0, 0);
if (hModule == NULL)
{
return 0;
}
else
{
do
{
if (((*pIat) >> 31) != 1)
{
PIMAGE_IMPORT_BY_NAME Name = (PIMAGE_IMPORT_BY_NAME)((DWORD)pNewPe + *pIat);
*pIat = (DWORD)My_GetProcAddress(hModule, Name->Name);
}
else
{
*pIat = (DWORD)My_GetProcAddress(hModule, (const char*)((*pIat) & 0x7fffffff));
}
pIat++;
} while (*pIat);
}
pImportTable++;
} while (pImportTable->Name != NULL);
//--------------------------------------------------------------------------------------------------------------------------------------修复重定位表
DWORD Offset = NULL;
int BaseTableSize = NULL;
int NowSize = NULL;
PIMAGE_BASE_RELOCATION pBaseTable = NULL;
Offset = (DWORD)pNewPe - pNtHdr->OptionalHeader.ImageBase;//计算需要重定位的值
if (pNtHdr->OptionalHeader.DataDirectory[5].VirtualAddress == 0)
{
return 0;
}
pBaseTable = (PIMAGE_BASE_RELOCATION)((DWORD)pNewPe + pNtHdr->OptionalHeader.DataDirectory[5].VirtualAddress);
BaseTableSize = pNtHdr->OptionalHeader.DataDirectory[5].Size;
while ((NowSize < BaseTableSize) && (pBaseTable->VirtualAddress != 0))
{
PWORD pBase = (PWORD)((DWORD)pBaseTable + sizeof(IMAGE_BASE_RELOCATION));
PDWORD pAageBase = (PDWORD)((DWORD)pNewPe + pBaseTable->VirtualAddress);
int Count = (pBaseTable->SizeOfBlock - sizeof(IMAGE_BASE_RELOCATION)) / sizeof(WORD);
for (int i = 0; i < Count; i++)
{
if (pBase[i] >= 0x3000)//1修改高16位 2修改低16位
{
PDWORD UpdataAddr = (PDWORD)((pBase[i] & 0xfff) + (DWORD)pAageBase);
*UpdataAddr = Offset + *UpdataAddr;
}
}
NowSize += pBaseTable->SizeOfBlock;
pBaseTable = (PIMAGE_BASE_RELOCATION)((DWORD)pBaseTable + pBaseTable->SizeOfBlock);
}
char* mapadd = ((char*)pNewPe + pNtHdr->OptionalHeader.AddressOfEntryPoint);
return mapadd;
}
char* RetX64RunExeAdr(char* pExeAddr, HMODULE Kernel32)
{
// 1. 局部字符串
CHAR szUser32[] = { 'u','s','e','r','3','2','.','d','l','l','\0' };
CHAR szKernel32[] = { 'k','e','r','n','e','l','3','2','.','d','l','l','\0' };
CHAR szntdll[] = { 'n','t','d','l','l','.','d','l','l','\0' };
CHAR szCMD[] = { 'c','m','d','.','e','x','e','\0' };
CHAR csVirtualAlloc[] = { 'V','i','r','t','u','a','l','A','l','l','o','c' ,'\0' };
CHAR csVirtualProtect[] = { 'V','i','r','t','u','a','l','P','r','o','t','e','c','t','\0' };
CHAR csGetProcAddress[] = { 'G','e','t','P','r','o','c','A','d','d','r','e','s','s','\0' };
CHAR csCreateThread[] = { 'C','r','e','a','t','e','T','h','r','e','a','d' ,'\0' };
CHAR csWaitForSingleObject[] = { 'W','a','i','t','F','o','r','S','i','n','g','l','e','O','b','j','e','c','t','\0' };
// 2. 获取关键模块基址
HMODULE hKernel32By64 = 0;
HMODULE hNtDll = 0;
DWORD ImageBase = 0;
HMODULE hUser32 = 0;
// 3. 获取关键模块基址
DefineFuncPtr(LoadLibraryExA, (HMODULE)Kernel32);
hKernel32By64 = My_LoadLibraryExA(szKernel32, 0, 0);
hNtDll = My_LoadLibraryExA(szntdll, 0, 0);
hUser32 = My_LoadLibraryExA(szUser32, 0, 0);
DefineFuncPtr(VirtualAlloc, hKernel32By64);
DefineFuncPtr(VirtualProtect, hKernel32By64);
DefineFuncPtr(CreateThread, hKernel32By64);
DefineFuncPtr(WaitForSingleObject, hKernel32By64);
DefineFuncPtr(GetProcAddress, hKernel32By64);
//User32
DefineFuncPtr(MessageBoxA, hUser32);
//ntdll
DefineFuncPtr(memcpy, hNtDll);
DefineFuncPtr(sprintf, hNtDll);
DWORD64 SectionCount = 0;
DWORD64 SectionAlignment = 0;
DWORD64 FileAlignment = 0;
PIMAGE_NT_HEADERS64 pNtHdr = NULL;
//申请新内存
pNtHdr = (PIMAGE_NT_HEADERS64)((char*)pExeAddr + ((PIMAGE_DOS_HEADER)pExeAddr)->e_lfanew);
SectionCount = pNtHdr->FileHeader.NumberOfSections;
SectionAlignment = pNtHdr->OptionalHeader.SectionAlignment;
FileAlignment = pNtHdr->OptionalHeader.FileAlignment;
LPVOID pNewPe = My_VirtualAlloc(NULL, pNtHdr->OptionalHeader.SizeOfImage, MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE);
if (pNewPe == NULL)
{
return 0;
}
//拉伸PE
My_memcpy((void*)pNewPe, (void*)pExeAddr, pNtHdr->OptionalHeader.SizeOfHeaders);
PIMAGE_SECTION_HEADER pSectionHdr = (PIMAGE_SECTION_HEADER)IMAGE_FIRST_SECTION(pNtHdr);
for (int i = 0; i < SectionCount; i++)
{
My_memcpy((char*)((DWORD64)pNewPe + pSectionHdr[i].VirtualAddress),
(char*)((DWORD64)pExeAddr + pSectionHdr[i].PointerToRawData),
pSectionHdr[i].SizeOfRawData);
}
//修复导入表
PIMAGE_DOS_HEADER pDos64 = (PIMAGE_DOS_HEADER)pNewPe;
PIMAGE_NT_HEADERS64 pNt64 = (PIMAGE_NT_HEADERS64)(pDos64->e_lfanew + (char*)pNewPe);
PIMAGE_IMPORT_DESCRIPTOR ImportTable = (PIMAGE_IMPORT_DESCRIPTOR)((char*)pNewPe + pNt64->OptionalHeader.DataDirectory[1].VirtualAddress);
//printf("Nt%x---ImportTable=%x---%x\n", pNt64, ImportTable, pNt64->OptionalHeader.DataDirectory[1].VirtualAddress);
//遍历导入表 以全0结构体结尾
while (ImportTable->Name != 0)
{
//计算出DLL名称通过LoadLibrary
CHAR* DllName = (CHAR*)(ImportTable->Name + ((char*)pNewPe));
//加载DLL
HMODULE hModule = My_LoadLibraryExA(DllName, 0, 0);
//获取IAT表
PIMAGE_THUNK_DATA64 Iat = (PIMAGE_THUNK_DATA64)(ImportTable->FirstThunk + ((char*)pNewPe));
//检测是否有效
while (Iat->u1.AddressOfData)
{
ULONGLONG FunctionAddr = 0;
//最高位为0
if (!IMAGE_SNAP_BY_ORDINAL(Iat->u1.AddressOfData))
{
PIMAGE_IMPORT_BY_NAME Name = (PIMAGE_IMPORT_BY_NAME)(Iat->u1.Function + ((char*)pNewPe));
FunctionAddr = (ULONGLONG)My_GetProcAddress(hModule, Name->Name);
}
else
{
//如果没有名字，低16位就是序号
FunctionAddr = (ULONGLONG)My_GetProcAddress(hModule, (LPCSTR)(Iat->u1.Ordinal & 0xffff));
}
Iat->u1.Function = (ULONGLONG)FunctionAddr;
++Iat;
}
ImportTable++;
}
//-------------------------------------------------修复重定位表
DWORD64 Offset = NULL;
int BaseTableSize = NULL;
int NowSize = NULL;
PIMAGE_BASE_RELOCATION pBaseTable = NULL;
Offset = (DWORD64)pNewPe - pNt64->OptionalHeader.ImageBase;//计算需要重定位的值
if (pNt64->OptionalHeader.DataDirectory[5].VirtualAddress == 0)
{
return 0 ;
}
pBaseTable = (PIMAGE_BASE_RELOCATION)((DWORD64)(pNewPe)+pNt64->OptionalHeader.DataDirectory[5].VirtualAddress);
BaseTableSize = pNt64->OptionalHeader.DataDirectory[5].Size;
while ((NowSize < BaseTableSize) && (pBaseTable->VirtualAddress != 0))
{
PWORD pBase = (PWORD)((DWORD64)pBaseTable + sizeof(IMAGE_BASE_RELOCATION));
PDWORD64 pAageBase = (PDWORD64)((DWORD64)(pNewPe)+pBaseTable->VirtualAddress);
int Count = (pBaseTable->SizeOfBlock - sizeof(IMAGE_BASE_RELOCATION)) / sizeof(WORD);
for (int i = 0; i < Count; i++)
{
if (pBase[i] >= 0x3000)//1修改高16位 2修改低16位
{
PDWORD64 UpdataAddr = (PDWORD64)((pBase[i] & 0xfff) + (DWORD64)pAageBase);
*UpdataAddr = Offset + *UpdataAddr;
}
}
NowSize += pBaseTable->SizeOfBlock;
pBaseTable = (PIMAGE_BASE_RELOCATION)((DWORD64)pBaseTable + pBaseTable->SizeOfBlock);
}
char* mapadd = ((char*)pNewPe + pNtHdr->OptionalHeader.AddressOfEntryPoint);
return mapadd;
}