Virus attacks up 17.5%


Virus attacks up 17.5%

Karl Cushing
Last month's Bugbear-B worm was the most pernicious virus in the first half of 2003. Security firm Sophos received reports about 3,855 new viruses, a 17.5% increase compared to the same period last year, the firm said.

Bugbear-B, which morphs its contents and can turn off some firewalls and anti-virus software, accounted for 12% of the reports the company received.

Graham Cluley, senior technology consultant at Sophos, said all 10 viruses were executable Windows 32 viruses spread via e-mail. "Companies can protect themselves by blocking executable code at the e-mail gateway. These viruses should not have had anything like the impact they did," he said.

Eight of the viruses can spread using more than one method such as e-mail, internet relay chat and network sharing - a trend Sophos expects to continue.

The remaining four places in the top five were taken by Klez-H, and variants of the Sobig virus, including Sobig-C, which posed as a support e-mail from Microsoft's Bill Gates. The impact of Sobig makes it the biggest virus threat encountered this year so far.

Email Alerts

Register now to receive IT-related news, guides and more, delivered to your inbox.
By submitting your personal information, you agree to receive emails regarding relevant products and special offers from TechTarget and its partners. You also agree that your personal information may be transferred and processed in the United States, and that you have read and agree to the Terms of Use and the Privacy Policy.

COMMENTS powered by Disqus  //  Commenting policy