'Bugbear' worm opens backdoors

Wednesday, 2 October 2002, 9:41 AM EST

The Bugbear worm takes advantage of a known vulnerability in Microsoft Corp.'s Internet Explorer, said Vincent Gullotto, vice president of the anti-virus response team at Network Associates Inc.

It shuts down anti-virus and firewall software designed to block out intruders and can spread by dropping copies of itself into folders on shared networks, which are commonly used at corporations and large organizations, he said.

A bug in the code is believed to be keeping it from spreading by sending itself to people listed in e-mail address books, according to Gullotto. It is ranked a "medium" risk, he added.

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