ne_viens
Advanced Member | Редактировать | Профиль | Сообщение | Цитировать | Сообщить модератору
// cl /Ox /GF /GS- patcher.c kernel32.lib user32.lib advapi32.lib
#include <windows.h>
#pragma comment(linker, "/SUBSYSTEM:WINDOWS /NODEFAULTLIB /ENTRY:WinMain /MERGE:.rdata=.text")
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
patch()
{
HKEY hKey;
int x, i;
HANDLE hFile;
FILETIME at, bt, ct;
char buf[MAX_PATH];
if(ERROR_SUCCESS == RegOpenKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\MyProg 5.2_is1",
0, KEY_QUERY_VALUE, &hKey))
{
x = sizeof(buf);
i = RegQueryValueEx(hKey, "InstallLocation", NULL, NULL, buf, &x);
RegCloseKey(hKey);
if(ERROR_SUCCESS == i)
{
lstrcat(buf, "MyProg 5.exe");
hFile = CreateFile(buf, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if(INVALID_HANDLE_VALUE != hFile)
{
GetFileTime(hFile, &at, &bt, &ct);
SetFilePointer(hFile, 0x130, NULL, FILE_BEGIN);
ReadFile(hFile, buf, 4, &x, 0);
if(*(int*)buf == 0x4FBA4BBB) //14:05:47 2012.05.21
{
SetFilePointer(hFile, 0x28b470, NULL, FILE_BEGIN);
*(int*)buf = 0x04c201b0;
buf[4] = 0;
WriteFile(hFile, buf, 5, &x, 0);
SetFileTime(hFile, &at, &bt, &ct);
CloseHandle(hFile);
MessageBox(NULL, "File patched successfully", "OK", 0);
return 0;
}
CloseHandle(hFile);
MessageBox(NULL, "Wrong file version!", NULL, 0);
return -1;
}
MessageBox(NULL, "Can not open a file for patching.", NULL, 0);
return -1;
}
}
MessageBox(NULL, "Program not found, install it first!", NULL, 0);
return -1;
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int WinMain(HINSTANCE h, HINSTANCE h2, char* cmdl, int i)
{
return patch();
}
|
