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    Home Latest News
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    New Storm Worm Spreading Via Blog Posts

    By
    Lisa Vaas
    -
    February 27, 2007
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      A Storm worm variant using both e-mail and Web sites to infect Windows-based PCs is injecting itself into the responses people are leaving on blogs.

      Dmitri Alperovitch, principal research scientist at Secure Computing, told eWEEK that the worm is injecting itself into the operating system as a rootkit and is capable of intercepting Web traffic.

      When a user with an infected system visits a bulletin board or posts to a blog, the worm inserts a malware into his or her comments. The line asks readers to look at a fun video and contains a link leading to a Web site where the malware is waiting to reinfect more users.

      The worm is taking over PCs, Secure Computing reports, giving the criminal control for multiple purposes: sending spam, launching DDoS attacks and running keyloggers.

      Alperovitch said that Googling for the different domains from which the worm is working results in several hundred postings that already contain links to the malware. “Probably the population [of infected machines] is more extensive because not everybody posts,” he said. Secure Computing is tracking six domains, all posted on the Estonian register, which has been associated with a large volume of malware in the past.

      Also notable in this worm is that it’s using server polymorphism—i.e., it contains self-modifying code that changes automatically every time it is downloaded. This worm form has been around “for ages,” Alperovitch said, such as in the Bagle worm. Morphing worms are designed to avoid antivirus signature detection, and so far, Alperovitch said, it’s working, as few major antivirus vendors have detected it.

      To avoid infection, the advice is to refrain from clicking on the “fun video” link.

      It’s easy to find out if you’re infected, Alperovitch said, simply by going to a Web board and posting a message. “If it’s adding something to your post you didn’t add, you know it’s infected,” he said.

      Lisa Vaas
      Lisa Vaas is News Editor/Operations for eWEEK.com and also serves as editor of the Database topic center. Since 1995, she has also been a Webcast news show anchorperson and a reporter covering the IT industry. She has focused on customer relationship management technology, IT salaries and careers, effects of the H1-B visa on the technology workforce, wireless technology, security, and, most recently, databases and the technologies that touch upon them. Her articles have appeared in eWEEK's print edition, on eWEEK.com, and in the startup IT magazine PC Connection. Prior to becoming a journalist, Vaas experienced an array of eye-opening careers, including driving a cab in Boston, photographing cranky babies in shopping malls, selling cameras, typography and computer training. She stopped a hair short of finishing an M.A. in English at the University of Massachusetts in Boston. She earned a B.S. in Communications from Emerson College. She runs two open-mic reading series in Boston and currently keeps bees in her home in Mashpee, Mass.

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