While Microsoft weakness is patched, other worms turn

Thursday, 19 February 2004, 12:59 PM EST

Security analysts say hackers are having a harder time than expected coming up with a workable exploit against the Microsoft ASN.1, giving administrators valuable time to patch their systems.

But while patching for that vulnerability is under way, new worms continue to demand attention.

A new variant of the Bagle worm, Bagle.b, now is spreading rapidly in the wild. It is a mass-mailing worm that installs a back door Trojan on infected machines and appears to be programmed to stop spreading Feb. 25. It has a random subject line, text and attachment name.

Security companies noticed the spread on Tuesday in Europe, and MessageLabs Inc. of New York reported it had stopped more than 96,000 copies of the worm in 66 countries by early Wednesday. Panda Software Inc. of Glendale, Calif., called the mass-mailing worm “highly effective,” due in part to its ability to spoof the sender’s address.

By William Jackson at GCN.

[ Read more ]




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