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1 February 2005

Top ten viruses and hoaxes reported to Sophos in January 2005

Lynnfield, MA - Sophos, a global leader in network security, has published a report revealing the top ten viruses and hoaxes that caused problems for businesses around the world during the month of January 2005.

The report, compiled from SophosLabs, a global network of research centers, showed that Zafi-D, which appeared at the end of 2004, maintained its position at the top of the chart for a second consecutive month.

The top ten viruses in January 2005 were as follows:

Position Last
month
Malware Percentage of reports
11W32/Zafi-D
   44.0%
23W32/Netsky-P
   19.4%
34W32/Zafi-B
   10.1%
42W32/Sober-I
   6.3%
55W32/Netsky-D
   3.2%
66W32/Netsky-Z
   3.1%
77W32/Bagle-AA
   2.1%
88W32/Netsky-B
   1.9%
910W32/MyDoom-O
   1.2%
10Re-entryW32/Netsky-C
   1.1%
Others7.6%

"The Zafi-D worm managed to maintain the top position on the chart for the second consecutive month, accounting for nearly half of all reports in January 2005," said Gregg Mastoras, senior security analyst at Sophos, Inc. "Despite the holiday season being behind us, many continued to open the email perhaps thinking it was a belated holiday greeting."

"Netsky-P was still a pest to many users in January despite the fact that protection against this worm has been available since March 2004," continued Mastoras. "Many organizations are probably protected at this point but for those who are still getting hit, they need to protect their gateway at all times with automatic virus updates."

Sophos analyzed and protected against 1,329 new viruses in January. The total number of viruses Sophos now protects against is 99,829. Sophos research shows that over 4.3%, or one in 23 emails, circulating during the month of January were viral. This figure is a little lower than last month when 1 in 18 emails were viral.

The top ten hoaxes reported to Sophos during January were as follows:

Position Hoax Percentage of reports
1Hotmail hoax
   31.7%
2A virtual card for you
   9.7%
3Bonsai kitten
   9.0%
4Meninas da Playboy
   8.2%
5Yahoo instant message
   3.8%
6Letter from tsunami victim
   3.3%
7Applebees Gift Certificate
   2.5%
8Budweiser frogs screensaver
   2.1%
9Unidentified tsunami boy
   1.8%
10Bill Gates fortune
   1.6%
Others26.3%

"There were two new entries to the hoax chart in January and both centered on the Indian Ocean tsunami disaster," continued Mastoras. "The 'unidentified tsunami boy' chain letter affected email systems due to sympathetic internet users who forwarded a picture of a young blonde-haired boy in a Thai hospital. The 'letter from tsunami victim' was nothing but a scam similar to the well-known Nigerian Letter scams, which were designed to extort money from email users. The best advice is to simply delete all such email and/or not forward."

Other virus news

On January 28, 2005, Jeffrey Lee Parson, the teenage author of the Blaster-B internet worm was sentenced to 18 months in prison and 100 hours of community service by a US District Court. Parson's worm, which launched an attack against Microsoft's website and infected 48,000 computers caused an estimated $1.2 million in damage when it spread in August 2003.

Sophos has made available a free, constantly updated information feed for intranets and websites which means users can always find out about the latest viruses and hoaxes.

Graphics of the above top ten virus chart are available here.

More information about safe computing, including anti-hoax policies.

  • USA number 1 for malware and spam
  • Huge surge in email attachment attacks
  • Scareware makes users buy bogus products

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