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Storm worm identified as most prevalent in 2007

BitDefender UK : 11 December, 2007  (Technical Article)
BitDefender confirms botnets as the largest distributor of IT security threats of 2007 with the Storm Worm malware outnumbering other by approximately 10%.
According to BitDefender Labs, the main malware threat during 2007 came from the Peed - aka 'Storm Worm' aka 'Nuwar' bot - which has managed to spread so much that it has outstripped all other trojan downloaders by almost 10 percent overall, at 33.94 percent of total detections, during the past twelve months.

BitDefender's Top Ten listing for 2007 list contains numerous mass mailers, the Netsky family still dominating the category with three separate entries, making Netsky.P possibly the most harmful and long-lived mass mailer of all time.

In the category of viruses proper, possibly the most-underrated threat of the year is Sality.M, a highly dangerous polymorphic virus, which is spread via mail and other means.

On the file infector front, the 'most spread' title goes to Virtob.2, a relatively harmless virus with an unfortunate tendency to infect the same files many times over.

BitDefender's 2007 Top 10 malware list includes:.

1. Trojan.Peed.Gen 33.94%.
2. BehavesLike:Trojan.Downloader 24.86%.
3. Win32.Netsky.P@mm 6.49%.
4. Trojan.Peed.A 2.13%.
5. Win32.Nyxem.E@mm 2.13%.
6. Win32.Sality.M 2.06%.
7. Win32.NetSky.D@mm 2.06%.
8. Win32.Virtob.2.Gen 1.60%.
9. Win32.Netsky.AA@mm 1.49%.
10. Trojan.Peed.P 1.17%.

"The past year has seen both the tail end of the mass mailer age and the rise of the botnets as the top threat category," said Viorel Canja, head of BitDefender's Antivirus Lab. "The top ten for 2007 also reflects a re-emergence of file infectors as a credible threat, primarily because of widespread P2P sharing. We'll see what the future holds.'
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