Type of encryption used
I've been trying to decrypt this PHP page that I downloaded from some script hosting site, I need to change some info in it, and haven't been able to find what type of encryption it is.
Any ideas of what type it is? Any help would be much appreciated. :) The contents of the encrypted page:
$OOO0O0O00=FILE;$O00O00O00=LINE;$OO00O0000=3996;eval(gzuncompress(base64_decode('eNplj1dvwjAAhP9MpNgiCJMFUZQH9sbs9VJlOAOysDMgv76gVm2l6u7pdPdJx2GEEH4JGW6SkhhwGOOvQOCpxUO99IOQgHqdw+/i29D1SMYA9zMVmkiUof4vlpGmQv1F/F4aXpXHdhKllDAGLJMRVf5wiJ04BLCMZhS4lJjOX4QiqVDg74NaT0xKzB5mF1V+sBydVkdNKmZUvqX9q3IZW20nm+d2PDx0mm4YNZ7rnbfdkPNkul+0VIMX+E631x8MR+PJdDZfLPFqvdnu9ofj6XwxLdshrucH11sYxUl6pyzLi/LxrFBTlGRFbbW1WoOHEOqkMEPwewjqn85iXyI=')));return;?> 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```
I was bored, so I wrote a writeup on exactly how you can reverse engineer the obfuscation used by PHPLockIt. I think it needs to be demonstrated just how insecure that application is, and I learned a few new PHP functions along the way. Maybe someone else will find the writeup interesting, so you guys can check it out below if you want ^.^
http://www.stealth-x.com/articles/debunking-phplockit.php
@OP - I used your text in my writeup, and you can find the decoded PHP code in the article if you'd like.
This article should help you deobfuscate/decode most of the obfuscation techniques implemented in PHP user space http://www.php-security.org/2010/05/13/article-decoding-a-user-space-encoded-php-script/index.html