Malware entry: MW:IFRAME:ENC1603

Description:

A hidden iframe was identified inside an encoded block of javascript. It loads content from remote web sites in attempt to exploit a specific specific browser vulnerabilities (from exploit packs). In some variations, the browser is redirected to blackhat seo spam sites. It is also known as “Exploit:HTML/IframeRef.AA” or “Iframes” by some anti virus products.

 
Note that every PHP, HTML and JS file could get compromised by this malware.

 
Affecting: Any web site. Often on outdated WordPress, Joomla and osCommerce sites.

Clean up: You can also sign up with us and let our team remove the malware for you.

 
Loads malware from multiple sources:

http://jazzute.ru/count5.php
(and many other domains).

 

Malware dump (sample of malware):

More information: Malware entry: MW:IFRAME:ENC1603

Story added 5. April 2012, content source with full text you can find at link above.