- added function EngineGetAPINameRemote (untested yet)

This commit is contained in:
Mr. eXoDia 2014-03-12 11:36:57 +01:00
parent 3cb15ef49f
commit 6dd96b8384
3 changed files with 69 additions and 2 deletions

View File

@ -1,7 +1,9 @@
#include "stdafx.h"
#include "definitions.h"
#include "Global.Engine.h"
#include "Global.Engine.Importer.h"
#include "Global.Debugger.h"
#include "Global.Mapping.h"
ULONG_PTR EngineGetProcAddressRemote(HANDLE hProcess, const wchar_t* szDLLName, const char* szAPIName)
{
@ -194,3 +196,67 @@ ULONG_PTR EngineGetAddressLocal(HANDLE hProcess, ULONG_PTR Address)
}
return 0;
}
bool EngineGetAPINameRemote(HANDLE hProcess, ULONG_PTR APIAddress, char* APIName, DWORD APINameSize, DWORD* APINameSizeNeeded)
{
HANDLE FileHandle;
DWORD FileSize;
HANDLE FileMap;
ULONG_PTR FileMapVA;
ULONG_PTR ModuleBase=EngineGetModuleBaseRemote(hProcess, APIAddress);
wchar_t szModulePath[MAX_PATH]=L"";
if(!GetModuleFileNameExW(hProcess, (HMODULE)ModuleBase, szModulePath, _countof(szModulePath)))
return false;
if(MapFileExW(szModulePath, UE_ACCESS_READ, &FileHandle, &FileSize, &FileMap, &FileMapVA, 0))
{
PIMAGE_DOS_HEADER DOSHeader=(PIMAGE_DOS_HEADER)FileMapVA;
if(EngineValidateHeader(FileMapVA, NULL, NULL, DOSHeader, true))
{
PIMAGE_NT_HEADERS32 PEHeader32=(PIMAGE_NT_HEADERS32)((ULONG_PTR)DOSHeader + DOSHeader->e_lfanew);
PIMAGE_NT_HEADERS64 PEHeader64=(PIMAGE_NT_HEADERS64)((ULONG_PTR)DOSHeader + DOSHeader->e_lfanew);
ULONG_PTR ExportDirectoryVA;
DWORD ExportDirectorySize;
ULONG_PTR ImageBase;
if(PEHeader32->OptionalHeader.Magic==IMAGE_NT_OPTIONAL_HDR32_MAGIC)
{
ImageBase=PEHeader32->OptionalHeader.ImageBase;
ExportDirectoryVA=(ULONG_PTR)(PEHeader32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress);
ExportDirectorySize=(ULONG_PTR)(PEHeader32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size);
}
else //x64
{
ImageBase=PEHeader64->OptionalHeader.ImageBase;
ExportDirectoryVA=(ULONG_PTR)(PEHeader64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress);
ExportDirectorySize=(ULONG_PTR)(PEHeader64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size);
}
PIMAGE_EXPORT_DIRECTORY ExportDirectory=(PIMAGE_EXPORT_DIRECTORY)ConvertVAtoFileOffset(FileMapVA, ExportDirectoryVA+ImageBase, true);
DWORD* AddrOfFunctions=(DWORD*)ConvertVAtoFileOffset(FileMapVA, ExportDirectory->AddressOfFunctions+ImageBase, true);
DWORD* AddrOfNames=(DWORD*)ConvertVAtoFileOffset(FileMapVA, ExportDirectory->AddressOfNames+ImageBase, true);
SHORT* AddrOfNameOrdinals=(SHORT*)ConvertVAtoFileOffset(FileMapVA, ExportDirectory->AddressOfNameOrdinals+ImageBase, true);
unsigned int NumberOfNames=ExportDirectory->NumberOfNames;
for(unsigned int i=0; i<NumberOfNames; i++)
{
const char* curName=(const char*)ConvertVAtoFileOffset(FileMapVA, AddrOfNames[i]+ImageBase, true);
unsigned int curRva=AddrOfFunctions[AddrOfNameOrdinals[i]];
if(curRva<ExportDirectoryVA || curRva>=ExportDirectoryVA+ExportDirectorySize) //non-forwarded exports
{
if(curRva+ModuleBase==APIAddress)
{
if(APIName && APINameSize<strlen(curName))
{
strcpy(APIName, curName);
return true;
}
if(APINameSizeNeeded)
{
*APINameSizeNeeded=strlen(curName);
return true;
}
}
}
}
}
UnMapFileEx(FileHandle, FileSize, FileMap, FileMapVA);
}
return false;
}

View File

@ -9,5 +9,6 @@ ULONG_PTR EngineGetModuleBaseRemote(HANDLE hProcess, const wchar_t* szDLLName);
ULONG_PTR EngineGetModuleBaseRemote(HANDLE hProcess, const char* szDLLName);
ULONG_PTR EngineGetAddressRemote(HANDLE hProcess, ULONG_PTR APIAddress);
ULONG_PTR EngineGetAddressLocal(HANDLE hProcess, ULONG_PTR APIAddress);
bool EngineGetAPINameRemote(HANDLE hProcess, ULONG_PTR APIAddress, char* APIName, DWORD APINameSize, DWORD* APINameSizeNeeded);
#endif //_GLOBAL_ENGINE_IMPORTER_H

View File

@ -21,11 +21,11 @@ __declspec(dllexport) long long TITCALL GetPE32DataFromMappedFile(ULONG_PTR File
{
PEHeader32 = (PIMAGE_NT_HEADERS32)((ULONG_PTR)DOSHeader + DOSHeader->e_lfanew);
PEHeader64 = (PIMAGE_NT_HEADERS64)((ULONG_PTR)DOSHeader + DOSHeader->e_lfanew);
if(PEHeader32->OptionalHeader.Magic == 0x10B)
if(PEHeader32->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR32_MAGIC)
{
FileIs64 = false;
}
else if(PEHeader32->OptionalHeader.Magic == 0x20B)
else if(PEHeader32->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC)
{
FileIs64 = true;
}