Top ten viruses reported to Sophos in December 2000

Sophos Press Release

This is the latest in a series of monthly charts counting down the ten most frequently occurring viruses as compiled by Sophos, a world leader in corporate anti-virus protection.

For December 2000, the chart is as follows, with the most frequently occurring virus at number one:

Position Last
Malware Percentage of reports

"Despite warnings, users received some unwelcome Christmas presents in the form of new viruses such as Hybris-B, Prolin and Navidad," said Graham Cluley, senior technology consultant at Sophos Anti-Virus. "Viruses such as these are increasingly using psychology to tempt users to open attachments and everyone's New Year resolution should be to do a double-take before they double-click."

More information about W32/Apology-B.

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