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Top 10 Viruses Reported to Sophos in March 2005

  • 01 April, 2005 09:47

<p>Sophos, a world leader in protecting businesses against spam and viruses, has published a report revealing the top ten viruses causing problems for businesses around the world during the month of March 2005.</p>
<p>The report, compiled from Sophos's global network of monitoring stations, shows that Zafi-D, which first appeared at the end of 2004, is the most commonly encountered virus for the fourth consecutive month, accounting for 45.1 per cent of all reports. The whole chart is dominated by old viruses, with only one of the top ten, Sober-K, having first appeared in 2005.</p>
<p>The top ten viruses in March 2005 were as follows:</p>
<p>1. W32/Zafi-D 45.1% FOURTH MONTH AT NUMBER ONE
2. W32/Netsky-P 21.0%
3. W32/Zafi-B 5.9%
4. W32/Sober-K 5.8%
5. W32/Netsky-D 4.3%
6. W32/Netsky-Z 2.7%
7. W32/Netsky-B 2.3%
8. W32/MyDoom-O 1.3%
9. W32/Netsky-C 1.1%
10. W32/Netsky-Q 1.0%</p>
<p>Others 9.5%</p>
<p>"March's virus chart is dominated by old timers such as Zafi-D and several versions of the Netsky worms – indeed, only one of the top ten first appeared in 2005. Poorly protected computers are the only reason these old viruses continue to wreak havoc," said Carole Theriault, security consultant at Sophos. "Some of these established threats are so widespread, they are preventing more recent viruses from breaking into the top ten. But users shouldn't be fooled into a false sense of security – with more than a thousand brand new threats detected in March alone, new viruses are being created every day. User education, up-to-date virus protection, and a cautious approach to opening unknown attachments is the best way to render viruses powerless."</p>
<p>Sophos analysed and protected against 1,225 new viruses in March. The total number of viruses Sophos now protects against is 102,123. Sophos research shows that 2.62 per cent, or one in 38 emails, circulating during the month of March were viral. This figure is significantly lower than last month when 1 in 28 emails were viral.</p>
<p>In order to minimise exposure to viruses, Sophos recommends that companies deploy a policy at their email gateway which blocks unwanted executable attachments from being sent into their organisation from the outside world. Companies should also run up-to-date anti-virus software, firewalls and install the latest security patches.</p>
<p>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: http://www.sophos.com.au/virusinfo/infofeed/</p>
<p>Graphics of the above top ten virus chart are available at:
http://www.sophos.com/pressoffice/imggallery/topten/</p>
<p>For more information about safe computing, including anti-hoax policies, please visit:
http://www.sophos.com.au/virusinfo/bestpractice/</p>
<p>news ends</p>
<p>About Sophos.
Sophos is a world leading computer security specialist, developing anti-virus and anti-spam software. Headquartered in the UK, the company produces solutions tailored for businesses of all sizes – from small enterprises to global corporations. Sophos is acclaimed for delivering the highest level of customer satisfaction and protection in the industry. The company's products are sold and supported in more than 150 countries and protect more than 35 million users.</p>
<p>Sophos's regional head office for Australia and New Zealand is in Sydney and hosts one of the company's three Computer Virus Research and Development Laboratories to provide global support services.</p>
<p>http://www.sophos.com.au</p>
<p>FOR FURTHER INFORMATION:
Sean Richmond (sean.richmond@sophos.com.au) is available for comment:
+61 2 9409 9100 (tel)
+61 2 9409 9191 (fax)</p>
<p>Sophos's press contact at Gotley Nix Evans is:
Michael Henderson (sophos@gne.com.au)
+61 2 9957 5555 (tel)
+61 413 054 738 (mob)
+61 2 9957 5575 (fax)</p>

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