威盾解密

 <?php 
/*********************************** *威盾PHP加密专家解密算法 ***********************************/ 
$filename="1.php";
//要解密的文件 
$lines = file($filename);//0,1,2行  
//第一次base64解密 
$content=""; 
if(preg_match("/O0O0000O0\(‘.*‘\)/",$lines[1],$y)) {
 $content=str_replace("O0O0000O0(‘","",$y[0]);
 $content=str_replace("‘)","",$content);
 $content=base64_decode($content); 
} 
//第一次base64解密后的内容中查找密钥
$decode_key="";
if(preg_match("/\),‘.*‘,/",$content,$k)) {
 $decode_key=str_replace("),‘","",$k[0]);
 $decode_key=str_replace("‘,","",$decode_key);
} 
//查找要截取字符串长度 
$str_length=""; 
if(preg_match("/,\d*\),/",$content,$k)) {
 $str_length=str_replace("),","",$k[0]);
 $str_length=str_replace(",","",$str_length);
}
//截取文件加密后的密文
$Secret=substr($lines[2],$str_length);
//echo $Secret;
//直接还原密文输出
echo "<?php\n".base64_decode(strtr($Secret,$decode_key,‘ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/‘))."?>";
?>