Top ten viruses reported to Sophos in February 2001

Sophos Press Release

Wakefield, MA - Sophos, a world leader in anti-virus solutions since 1989, today released the latest in a series of monthly charts counting down the ten most frequently occurring viruses.

For February 2001, the chart is as follows, with the most frequently occurring virus at number one:

Position Last
Malware Percentage of reports

"This month's biggest virus - VBS/SST-A, aka the Kournikova worm - was not the work of a genius," said Graham Cluley, senior technology consultant at Sophos Anti-Virus. "Yet it still managed to fool hundreds of thousands of people around the world. Come on, wake up everybody! Don't fall for the next virus like this. Use up-to-date anti-virus software, obey the basic rules of safe computing and above all, think before you click."

The author of the Kournikova worm, OnTheFly, later confessed and handed himself over to the Dutch police. Worryingly, the mayor of OnTheFly's home town of Sneek, has suggested the virus writer should be offered a job in the council's IT department on the basis of his exploits.

875 new viruses were discovered and protected against by Sophos during February 2001.

The total number of viruses Sophos detects and protects against is 61026.

Compiled by Sophos's technical support team, the top ten chart is collated from calls to Sophos's 24 hour, 365 days a year technical support line.

Graphics of the above Top Ten chart are available here.

More than 100 million users in 150 countries rely on Sophos’ complete security solutions as the best protection against complex threats and data loss. Simple to deploy, manage, and use, Sophos’ award-winning encryption, endpoint security, web, email, mobile and network security solutions are backed by SophosLabs - a global network of threat intelligence centers. Sophos is headquartered in Oxford, U.K., and is publicly traded on the London Stock Exchange under the symbol “SOPH.” More information is available at