EnableSEH.cpp
1.73 KB
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/* Copyright (C) 2010-2012 kaosu (qiupf2000@gmail.com)
* This file is part of the Interactive Text Hooker.
* Interactive Text Hooker is free software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <windows.h>
#include <stdio.h>
static BYTE file[0x1000];
int main()
{
HANDLE hFile=INVALID_HANDLE_VALUE;
LPWSTR f=wcsrchr(GetCommandLine(),L' ');
if (f==0) return 1;
f++;
hFile=CreateFile(f,GENERIC_WRITE|GENERIC_READ,FILE_SHARE_READ,0,OPEN_EXISTING,0,0);
if (hFile == INVALID_HANDLE_VALUE) return 1;
DWORD high;
DWORD size=GetFileSize(hFile,&high);
DWORD d;
if (high == 0 && size < 0x1000000)
{
//char* file=(char*)HeapAlloc(GetProcessHeap(),0, size);
ReadFile(hFile,file,0x1000,&d,0);
IMAGE_DOS_HEADER *DosHdr=(IMAGE_DOS_HEADER*)file;
IMAGE_NT_HEADERS *NtHdr=(IMAGE_NT_HEADERS*)((DWORD)DosHdr+DosHdr->e_lfanew);
if ((BYTE*)&NtHdr->OptionalHeader.DllCharacteristics - file>= 0x1000)
{
MessageBox(0,L"Out",0,0);
}
else
{
NtHdr->OptionalHeader.DllCharacteristics&=0xFBFF;
SetFilePointer(hFile,0,0,FILE_BEGIN);
WriteFile(hFile,file,0x1000,&d,0);
}
}
CloseHandle(hFile);
ExitProcess(0);
}