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Facebook and YouTube malware magnets says Websense
95% of user comments on blogs are spam
By Ellen Messmer | Network World US
Published: 11:08 GMT, 17 September 09
A staggering 95% of all "user-generated comments" for blogs, chat rooms and message boards online are spam or malicious, according to a new Websense report on security threat trends.
"That's the first time we started monitoring that," says Patrick Runald, Websense senior manager for security research, about the level of spam and malware ploys carried out around blogs and chat rooms.
The Websense Security Labs "State of Internet Security Q1 – Q2 2009," which covers the period up to June of this year, also notes that the number of malicious Web sites for the period more than tripled. In addition, 77% of Web sites with malicious code are said to be legitimate sites that have been compromised.
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"The bad guys are finding new ways for disseminating malware," Runald said. "It's getting worse."
According to the Websense Security Labs report, based on data collected in part from scanning 40 million Web sites every hour, 61% of the Top 100 sites are said to either be hosting malicious content or containing a masked redirect to lure unsuspecting victims from legitimate sites to malicious ones.
Facebook, YouTube become malware magnets
More than 47% of the Top 100 sites, particularly social-networking sites, such as Facebook or YouTube, support user-generated content, which the report notes is becoming a significant way to disseminate malware and conduct fraud.
"On Facebook and other social-networking sites, there's an explicit sense of trust," says Runald. "That's why the bad guys are attempting to exploit it, with malware like Koobface, which could hijack your machine and send messages."
In the area of cybercrime, one significant attack that took place involved criminals seizing control of the CheckFree Web site and attempting to re-direct users to a website hosted in Ukraine that tried to install malware on victims' computers. The report said CheckFree has more than 24 million customers and controls 70%-80% of the online bill-payment market.
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Tim Cronin | Published: 18:48 GMT, 17 September 2009
One of the reasons cyber-criminals have such great success with posting malicious links on sites like Facebook, YouTube and Twitter is that they rely on URL shorteners and hyperlinks. One way to avoid these threats is to simply mouse over the hyperlink or URL shortener to determine the true destination of a link. If it isnt something that is familiar to you dont click on it. The second is to have a properly configured web filter. http://securityblog.astaro.com/