Sophos has published a report revealing the top ten viruses and hoaxes causing problems for businesses around the world during the month of February 2005.
The report, compiled from the Sophos global network of monitoring stations, shows that Zafi-D, which first appeared at the end of 2004, maintains its position at the top of the chart for a third consecutive month. February's top ten is dominated by old viruses, with only two new entries charting this month: Bagle-BK and Sober-K.
The top ten viruses in February 2005 were as follows:
1 W32/Zafi-D 30.8%
2 W32/Netsky-P 22.3%
3 W32/Zafi-B 9.7%
4 W32/Bagle-BK 5.2%
5 W32/Netsky-D 4.2%
6 W32/Netsky-Z 3.8%
7 W32/Sober-K 3.4%
8 W32/Sobig-F 2.5%
9 W32/Netsky-B 2.4%
10 W32/MyDoom-O 1.5%
Others 14.2%
Carole Theriault, security consultant at Sophos said,
"It looks like the Zafi-D worm is going to be hanging around like a bored teenager for some time to come, unless more home users realise how important it is to update their anti-virus software. This Hungarian worm accounts for almost one in three viruses reported. Despite only appearing at the end of February, the Sober-K worm has already made an impression on the chart and will be one to watch in March. It can pose in a number of disguises, including a bogus email from the FBI or raunchy videos of celebrity heiress Paris Hilton."
Sophos research shows that over 3.54%, or one in 28 emails, circulating during the month of February were viral. This figure is a little lower than last month when 1 in 23 emails were viral.
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