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31 January 2002

Top ten viruses reported to Sophos in January 2002

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 January 2002, the chart is as follows, with the most frequently occurring virus at number one:

Position Last
month		 Malware Percentage of reports
11W32/Badtrans-B
   61.1%
2NewW32/MyParty-A
   4.3%
33W32/Magistr-B
   3.6%
44W32/Sircam-A
   2.9%
57=W32/Nimda-A
   2.3%
6NewW32/Maldal-G
   1.6%
75W32/Magistr-A
   1.4%
8=Re-entryW32/Gokar-A
   1.3%
8=NewW32/Klez-E
   1.3%
107=W32/Nimda-D
   1.0%
Others19.2%

"Badtrans started 2002 as it finished 2001 - top of the virus chart," said Graham Cluley, senior technology consultant at Sophos Anti-Virus. "Anti-virus software has protected against Badtrans since November and simple safe computing procedures, like blocking double-extension attachments, should have meant this worm was a non-starter. It's time computer users took a close look at their security measures."

792 new viruses were discovered and protected against by Sophos Anti-Virus during January 2002.

The total number of viruses Sophos now detects and protects against is 71,830.

More information about Badtrans.

More information about safe computing.

Graphics of the above Top Ten chart are available here.

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.

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Sophos Threat Report July 2008
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About Sophos

Sophos enables enterprises all over the world to secure and control their IT infrastructure. Sophos's network access control, endpoint, web and email solutions simplify security to provide integrated defenses against malware, spyware, intrusions, unwanted applications, spam, policy abuse, data leakage and compliance drift. With over 20 years of experience, Sophos protects over 100 million users in nearly 150 countries with its reliably engineered security solutions and services. Recognized for its high level of customer satisfaction and powerful yet easy-to-use solutions, Sophos has received many industry awards, as well as positive reviews and certifications.

Sophos is headquartered in Boston, US and Oxford, UK. More information is available at www.sophos.com