Christmas number one virus plays on
The Christmas card worm -- Zafi.d -- is still dominating the virus charts, as people continue to report having run the program thinking it was a seasonal greeting.
Zafi.d, which in its third month at number one in the Sophos virus charts, contains a Trojan horse program that gives hackers remote control of an infected PC. Sophos found the Hungarian-written worm accounted for one in three viruses detected.
February's top ten, published on Wednesday, was dominated by old viruses and contained only two new entries -- Bagle-BK and Sober-K.
"It looks like the Zafi-D worm is going to be hanging around like a bored teenager for some time to come," said Carole Theriault, security consultant at Sophos. "Bagle-BK is the latest incarnation of the Bagle family of worms to make an impact, fooling many people to open its unsolicited email attachment. User education, good anti-virus software, and a sensible email policy can make worms like this an irrelevance."