Tuesday, November 17, 2009

Massive Scareware Serving Blackhat SEO, the Koobface Gang Style

Ali Baba and the 40 thieves LLC are once again multi-tasking, this time compromising hundreds of thousands of web sites, and redirecting Google visitors -- through the standard http referrer check -- to scareware serving domains.

What's so special about the domains mentioned in Cyveillance's post, as well as the ones currently active on this campaign? It's the Koobface connection.

For instance, the ionisationtools .cn or moored2009 .cn redirectors, as well as the scareware serving premium-protection6 .com; file-antivirus3.com; checkalldata .com; foryoumalwarecheck4 .com; antispy-scan1 .com mentioned in post, are the same scareware redirectors and domains analyzed in part two of the Koobface Botnet's Scareware Business Model series. The identical structure on a sampled Koobface infected host and a sampled compromised site can be seen in the attached screenshots.

The redirection "magic" takes place through a what looks like a static css.js (Trojan-Downloader.JS.FraudLoad) uploaded on all of the affected sites. The very latest blackhat SEO once again puts the Koobface gang in the spotlight of the ongoing underground multi-tasking that the majority of cybercriminals engage in these days.

Related posts:
Koobface Botnet's Scareware Business Model - Part Two
Koobface Botnet's Scareware Business Model - Part One
Koobface Botnet Redirects Facebook's IP Space to my Blog
New Koobface campaign spoofs Adobe's Flash updater
Social engineering tactics of the Koobface botnet
Koobface Botnet Dissected in a TrendMicro Report
Koobface Botnet's Scareware Business Model
Movement on the Koobface Front - Part Two
Movement on the Koobface Front
Koobface - Come Out, Come Out, Wherever You Are
Dissecting Koobface Worm's Twitter Campaign
Dissecting the Koobface Worm's December Campaign
Dissecting the Latest Koobface Facebook Campaign 
The Koobface Gang Mixing Social Engineering Vectors

This post has been reproduced from Dancho Danchev's blog.