Download the Manual Trojan Code Remover New!Released on 17th Feb 2010
As a new version of /*LGPL*/ and /*Exception*/ is out in wild. The code inserted in web pages after the BODY Tag or at end of Javascript files looks a bit like.
<script>/*LGPL*/ try{ window.onload = function(){var C1nse3sk8o41s = document.createElement('s&c^$#r))i($p@&t^&'.repl
<script>/*Exception*/ document.write(.....)
<script>try{window.onload=function(){(.....)
The SCRIPT tag above is not present in javascript(.js) files.
Well it is just another type of IFRAMER worm. Once deobfuscated, it loads javascript from
[http][POPULAR-DOMAIN-NAMES].easylifedirect.ru:8080/[POPULAR-DOMAIN-NAMES]/google.com/
This loaded Javascript then loads an iframe with src which contains actual payload
[http][POPULAR-DOMAIN-NAMES].easylifedirect.ru:8080/index.php?ys
some urls may also have "thechocolateweb.ru" or "tartband.ru" or "bestbondsite.ru" or "trueworldmedia.ru" or "avattop.ru" in place of "easylifedirect.ru"
The major files infected are
Javascript files .JS
index files such as
index*.html,
index*.htm,
index*.php,
default*.php,
mainframe*.php,
application*.php,
default*.html,
default*.htm
index*.asp
(index*.* and default*.*)
The javascript code seems to be changing since the day it launched and today morning I noticed that they have removed <script> tags in javascript files.
The payload hasn't changed much from last year's attacks. When one visits a compromised site, the malicious JavaScript loads more JavaScript that contains an iframe tag, which opens another page containing two links. One link goes to a PDF file, which is detected as Trojan-Downloader.JS.a or Trojan-Downloader.JS.b or Trojan-Downloader.JS.c or Trojan-Downloader.JS.d. The other is to a JAR (Java ARchive) file, which is detected as Downloader.
Those two files use the following vulnerabilities to infect the computer with malware:
* Adobe Acrobat and Reader Multiple Arbitrary Code Execution and Security Vulnerabilities (BID 27641)
* Adobe Reader and Acrobat 'newplayer()' JavaScript Method Remote Code Execution Vulnerability (BID 37331)
* Sun Java Runtime Environment and Java Development Kit Multiple Security Vulnerabilities (BID 32608)
The final payload includes malware like Trojan-Downloader.JAVA.Agent.al or Trojan-Downloader.JAVA.Agent.exe or Trojan.Bredolab, Downloader.Fostrem, and Trojan.Zbot, along with security risks such as PrivacyCenter and a number of other misleading applications that may be detected as Trojan.FakeAV. It's important to keep your definition files up-to-date as these files are frequently being updated.
REMOVAL STEPS
1. Block these websites on your firewall or router: "thechocolateweb.ru", "tartband.ru", "bestbondsite.ru", "trueworldmedia.ru", "avattop.ru" , "easylifedirect.ru"
2. Update your anti-virus and clean up infection from your machines or whoever is accessing it via FTP
3. Change the ftp password from secure machine which is not infected
4. upload the Manual Trojan Code Remover script to your public_html directory
5. run the script by calling the php file from your browser
PRECAUTIONS
1. Block these websites on your firewall and/or router: "thechocolateweb.ru", "tartband.ru", "bestbondsite.ru", "trueworldmedia.ru", "avattop.ru" , "easylifedirect.ru"
2. Keep your Anti-virus updated.
3. Do not open any suspicious links received on messengers or emails.
It will clean up the files and will also create a backup of files which are infected. (backup files will have extension as .infected.bak)
Update: 30th Jan 2010, Version 1.0.2 released
Ok, I have updated the file with new version to cleanup the new infection string.
Update: 09th Feb 2010, Version 1.0.3 released
Added removal code for latest signatures.
Update: 17th Feb 2010, Manual Trojan Code Remover released
Looks like they are changing the signatures too fast. So I have made this small tool so that you can manually remove the vius code.
1. Download the Manual Trojan Code Remover and unpack.
2. Upload it to document root of your website and run the script by opening the url in your browser
3. Now open the any infected file and copy the trojan code and paste in the textarea in the removal tool.
4. Press Clean All!
Thats All!.
* Please note that you will need extra step for Javascript files.
** Also process code in javascript files after php/asp files.
Let us know if you find other signature or codes, We will try to release an update asap.
Sameer Shelavale
Possible Solutions
Web Development, SEO & Web Security
