Gromozon mystery clearing

Cleaner tool aims to remove sophisticated attack.

The shadowy blended threat known as

Gromozon

has slowly been gaining notoriety in recent weeks, particularly after

some in-depth analysis

was made public. Now anti-malware company

PrevX

has released a free, dedicated remover tool to combat the problem.

The threat has spread from an Italian website over several months, and uses a variety of highly sophisticated methods of infection, including various social engineering techniques and exploit attempts, which vary depending on the browser used to access the site, as well as obfuscated code to hamper analysis. It installs diallers, downloaders and adware on infected machines, all heavily stealthed by the accompanying rootkit technology.

The

PrevX

removal tool can be downloaded

here

. Read a blog entry on the threat from

Symantec

‘s Eric Chien

here

, and check the latest version of Marco Giuliani’s analysis (in PDF format)

here

.

Posted on 5 September 2006 by

Virus Bulletin