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Microsoft site appears to weather MyDoom attack


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LONDON, England (Reuters) -- Microsoft Corp. appeared to have survived the worst the MyDoom worm could throw at it.

Experts say the virus, a variant of the MyDoom.A virus that overwhelmed another company's Web site Sunday, was programmed to fire continuous volleys of debilitating data at Microsoft's site Tuesday.

But there was no visible impact on the software giant's Web site, http://www.microsoft.com, which barely flickered as the MyDoom.B Internet worm's trigger time of 8:09 EST passed.

Microsoft had said Monday it was taking a series of technical precautions to ward off any attack. The company declined to give any immediate comment Tuesday.

MyDoom.B is a low-grade variant of the original MyDoom.A virus, the fastest-spreading e-mail contagion to ever hit the Internet, security experts said.

MyDoom.A has infected hundreds of thousands -- and possibly over one million -- PCs, generating a torrent of spam e-mails and crippling corporate e-mail servers, plus slowing traffic for some Internet service providers.

The biggest victim of MyDoom.A was Utah-based computer software firm SCO Group. The week-old worm, also dubbed Novarg or Shimgapi, knocked the SCO site offline Sunday with a barrage of data known as a denial of service attack.

SCO scrambled to launch an alternative site at http://www.thescogroup.com.

MyDoom.B, which was programmed to target both SCO and Microsoft with a similar attack starting Tuesday, spread more slowly than its super-potent sibling and was never considered much of a threat, security experts have said.

"As far as MyDoom.B is concerned, you're more likely to see it in the headlines than in your e-mail inbox," said Graham Cluley, senior technology consultant at Sophos Plc.

Still, security officials warned Tuesday MyDoom.A was still spreading rapidly despite the fact more computer users were fortifying their machines with a variety of free patches available from anti-virus vendors.

"It's now become less of a virus infection problem and more of an e-mail glut problem," Cluley said.



Copyright 2004 Reuters. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

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