[ news_security_news ] Social Media Threatened By Malware
David Utter Staff Writer
2007-05-30
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As Conde Nast and regular web surfers discovered on Reddit last week, a promoted story could be linked to a drive-by download of malware online.
It's such a simple concept that it is a little surprising we haven't heard of this being a problem more often. After someone managed to post a story on Reddit and have it promoted to the front page, users who clicked the story link ended up with a Trojan on their system.
That Trojan, identified by Symantec researcher David Curran as Trojan.ByteVerify, then proceeded to go out and grab more malware.
Curran wondered just how effective sites like Reddit or Digg could be at infecting a lot of computers through a promoted story. He cited E-Consultancy's claim that a promoted story on Digg would draw 12,000 visitors to the destination page.
He speculated on how malware backers could exploit this inherent weakness in the system (Reddit finally took down its malicious link, but not before a lot of people clicked it.) Curran suggested those criminals could create a bunch of fake accounts, then create a story that would grab the attention of the social media site's visitors.
The account creation part isn't necessary. Sites exist that offer Digg clicks in exchange for a fee. Digg would probably catch a bunch of newly created accounts upvoting an article. Clicks by existing users who participate in pay for vote schemes may not be so easily noticed.
As for the linkbait article, Curran noted a headline like "Hey, cool, someone wrote an article about Digg!" could work pretty well.
Such approaches probably won't work for long, or against too many victims. Social media audiences tend to have a tech-savvy component to their audiences. Those folks would probably catch malicious activity and vote down the offending link.
About the Author:
David Utter is a business and technology writer for SecurityProNews and WebProNews.
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