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Bofra Worm Spreads by Banner Ads
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Posted by: Ion Silverbolt
Yahoo News has some info about the Bofra worm being transmistted by a large ad distributor. Anyone who has been to some European sites and are vulnerable should run their virus scanners.
Web site visitors who clicked on banner ads on a number of popular European Web sites this weekend could have infected their computers with variants of the Bofra worm, experts warn.
The attacks take advantage of an unpatched buffer overflow flaw in the way Internet Explorer 6 handles the IFrame tag, and has been confirmed on PCs running Windows XP (news - web sites) with Service Pack 1 and Windows 2000 (news - web sites), according to a warning posted Sunday on the SANS (SysAdmin, Audit, Network, Security) Institute Web site. Windows XP Service Pack 2 (SP2) is not vulnerable, it said.
The vulnerability allows attackers to gain complete control of a user's computer. Microsoft has yet to issue a patch for the IE IFrame hole for users who have not installed SP2.
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