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Attacks/Breaches

3/10/2010
01:16 PM
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Top Google Search Items Under Siege

Nearly 300 top search terms hit by 6,600 malicious URLs in past seven days

Search engine optimization (SEO) poisoning continues to be alive and well, with an unusually large wave of these attacks spotted during the past seven days targeting 284 of the top Google search terms.

SonicWALL found 6,600 malicious URLs attacking the top search terms, including "what time do the oscars start 2010" and "disney princess half marathon." As many as nine of these terms are under attack at any one time. More than 60 malicious URLs for the princess query appeared on Google's top 30 search results between March 7 and 8, and 34 malicious URLs for the Oscars query.

Why the spike in malicious URLs? "Based on the search terms that we observed, this jump can be correlated with huge public interest in finding out news related to Oscar awards," says Deepen Desai, lead malware researcher for SonicWALL. "A major spike was observed during the weekend of March 6 to 7, 2010. At one point, there were 1,200 malicious URLs appearing in the first 30 search results for the top Google search terms -- and close to 50 percent of those were related to Oscars-related search terms."

Desai says SEO poisoning attacks continue to be popular and successful because the bad guys know the latest news drives user interest. "And most of these malicious URLs appearing in the search results are compromised sites that appear legitimate," he says.

The malicious URLs mostly are spreading rogue antivirus applications, he says. "Most often these malicious URLs lead to a fake antivirus scan animation screen that alerts the users with fake detection of malware on [their] machine. It further prompts the user to download and purchase full version in order to fix the issues," he says.

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Kelly Jackson Higgins is the Executive Editor of Dark Reading. She is an award-winning veteran technology and business journalist with more than two decades of experience in reporting and editing for various publications, including Network Computing, Secure Enterprise ... View Full Bio

 

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