Question

PHP 代码解密eval(base64_decode---请附解密方法，

<?php // This file is protected by copyright law & provided under license. Copyright(C) 2005-2009 , All rights reserved.$OOO0O0O00=__FILE__;$OOO000000=urldecode('%74%68%36%73%62%65%68%71%6c%61%34%63%6f%5f%73%61%64%66%70%6e%72');$OO00O0000=1956;$OOO0000O0=$OOO000000{4}.$OOO000000{9}.$OOO000000{3}.$OOO000000{5};$OOO0000O0.=$OOO000000{2}.$OOO000000{10}.$OOO000000{13}.$OOO000000{16};$OOO0000O0.=$OOO0000O0{3}.$OOO000000{11}.$OOO000000{12}.$OOO0000O0{7}.$OOO000000{5};$O0O0000O0='OOO0000O0';eval(($$O0O0000O0('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')));return;?>I/S+AeLTP6S+QilUI6R4zXYLLXNBYVsvYVsnV4XzLxO5LcVzV4Vz8cfJBLL58z4+s9HTWvVFyvI+P6QTP6CK86C+Ei4wlGlQ2pl3P87TPX73PUjQ294oAeNGHvjTAilcPzQOstSLVXJnLcVzV4Vz8xyJLUlAsxlXLUyXLUNagLxXsxc+PzUqn6RTu8lwy8gTsXNBYVsvYVsAscSLVXJnztNBV6IIPz4ps9RSy8sUy/

Answer 1

这样的帖子回过无数个了，所有PHP的解密都是把eval换为echo就可以了，没有什么技术可言。

本程序的解密方法参见我在这个帖子的回复：
http://zhidao.baidu.com/question/115135906.html

你以上内容解密后是：
while(((isset($HTTP_SERVER_VARS['SERVER_NAME']))&&(!eregi('((.*\.)?y363\.cn)|((\.*\\.)?localhost)',$HTTP_SERVER_VARS['SERVER_NAME'])))||((isset($_SERVER['HTTP_HOST']))&&(!ereg

明显你上面的程序没有完整，你可以使用下面的程序获得完整的解密后的代码：
echo base64_decode(strtr('I/S+AeLTP6S+QilUI6R4zXYLLXNBYVsvYVsnV4XzLxO5LcVzV4Vz8cfJBLL58z4+s9HTWvVFyvI+P6QTP6CK86C+Ei4wlGlQ2pl3P87TPX73PUjQ294oAeNGHvjTAilcPzQOstSLVXJnLcVzV4Vz8xyJLUlAsxlXLUyXLUNagLxXsxc+PzUqn6RTu8lwy8gTsXNBYVsvYVsAscSLVXJnztNBV6IIPz4ps9RSy8sUy/','hJ6MtXeDWsP2rlaEgYzBLVv8HyuAQImnRS9G4Up5T+K1OZ3b7jFwcx/iCfd0qNko=','ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'));

第一个字符串就是源文件?>之后的内容，你粘贴完整的替换即可。

Answer 2