php编程:威盾PHP加密专家解密算法-雪洁之家

威盾PHP加密专家解密算法

<?php
/***********************************
 *威盾PHP加密专家解密算法
 ***********************************/
 
$filename = __DIR__ . "/application/controllers/admin.php";//要解密的文件，放在解密工具同目录下。
 
$lines = file($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 "<h1>文件解密成功</h1><textarea name='' rows='50' cols='120'><?phpn" . base64_decode(strtr($Secret, $decode_key, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/')) . "?></textarea>";
 
?>

by 雪洁 2018-09-26 04:31:10 588 views