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<?php
/***********************************
*威盾PHP加密专家解密算法 By：zhrt
*http://www.111cn.Net
*2013.12.31
*把该程序放到网站程序的目录下，即可针对文件所在目录及子目录的文件进行破解，源加密文件被更改名为.bak.php.
***********************************/
//decode("Image.class.php");
function explorerdir($dir)
{
$dp=opendir($dir); //打开目录句柄
//echo " ".$dir."rn"; //输出目录
while ($file = readdir($dp)) //遍历目录
{
if ($file !='.'&&$file !='..') //如果文件不是当前目录及父目录
{
$path=$dir.DIRECTORY_SEPARATOR.$file; //获取路径
if(is_dir($path)) //如果当前文件为目录
{
explorerdir($path); //递归调用
}
else //如果不是目录
{
//echo "-".$path."n"; //输出文件名
echo decode($path);
}
}
}
closedir($dp); //关闭文件名柄
}
explorerdir("."); //调用当前目录
function decode($filename="")
{
if(pathinfo($filename, PATHINFO_EXTENSION)!="php" || strpos($filename,".bak.php") || realpath($filename) == __FILE__ ){return;}
//$filename="intro.class.php";//要解密的文件
if(!file_exists($filename))
{
exit("file is not exist;");
}
$lines = file($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);
}
else
{
weidun_log(false,realpath($filename)." is not Encrypted!");
return false;
}
//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 $Secret;
//直接还原密文输出
echo "<!-- <?phpn".base64_decode(strtr($Secret,$decode_key,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'))."?> -->"; //很奇怪，去掉这行，下面的代码就出现问题，可能跟编码有关，在这里我就暂时不做进一步分析了，注视掉避免界面缭乱。
//echo "解密中....<br>";
$filecontent = "<?phpn".base64_decode(strtr($Secret,$decode_key,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'))."?>";
//echo $filecontent;
$filenamebak = str_replace(".php",".bak.php",$filename);
if(!file_exists($filenamebak)){
if(rename($filename,$filenamebak))
{
if(!file_exists($filename) && file_exists($filenamebak))//文件被更改成功
{
$fp = fopen($filename,"w");
fwrite($fp,$filecontent);
fclose($fp);
}
}
}else{
//return("备份文件".$filenamebak."已存在，停止解密。");
weidun_log(false,realpath($filenamebak)." is exist!");
return false;
}
weidun_log(true,realpath($filename)." - successful!");
return $filename." - successful! n";
}
function weidun_log($s = true,$c ="")
{
if($s)
{
$fp = fopen("./log.txt","a+");
fwrite($fp,$c."n");
fclose($fp);
}
else
{
$fp = fopen("./log_error.txt","a+");
fwrite($fp,$c."n");
fclose($fp);
}
}
?>
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