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Surviving the virus storm |
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by Bill Goodwin
Wednesday 27 August 2003
The arrival of three damaging computer viruses in quick succession is unprecedented in the history of computer viruses.
Blaster, Nachi and Sobig.F have left a trial of destruction around the world within the space of less than two weeks.
The outbreaks have had a tremendous impact on businesses and even those companies with adequate antivirus defences say their networks have slowed down dramatically because of the sheer volume of e-mail traffic generated by Sobig.
“Without doubt this has been the worst week in the history of the virus. Viruses have spread so fast and so far in the past seven days that companies must be feeling very bruised,” said Graham Cluely, chief technologist at Sophos.
High-profile victims over the past weeks included Air Canada, which was forced to shut down its electronic ticketing systems, and the rail transport systems on the East Coast of the US, where there were reports of commuter trains between Washington and New York being delayed and cancelled.
“In the UK we have received calls from businesses, not just those that did not have protection in place, but from companies whose e-mail systems were slowed down by the high volumes of e-mails generated by Sobig,” said Cluely.
The onslaught begin in the third week of October, when the Blaster worm began targeting unpatched versions of Windows 2000, Windows XP and Windows 2003.
The Nachi worm, also know as MSBlast.D, arrived on the scene little over a week later. Supposedly designed as a so-called good samaritan worm, it ended up causing more harm than good.
The Nachi outbreak caused a stampede from small businesses and home users seeking advice on repairing their systems.
Source: Computer Weekly
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