Lulzier Hunter

<?php

// lulzier hunter - by bottle_of_rum
// usage: ./lulzierhunter.php <start IP> <end IP> <timeout> <needle>
// example: ./lulzierhunter.php 124.217.224.0 124.217.255.255 1 Lulz

for ($c = 0; $c <= ip2long($argv[2]) - ip2long($argv[1]); $c++)
    if (strpos(@file_get_contents('http://'.long2ip(ip2long($argv[1])+$c), false, stream_context_create(array('http' => array('timeout' => $argv[3])))), $argv[4]) !== false)
        die('H4xed :D - '.long2ip(ip2long($argv[1])+$c));

?>