Mass
mailersandTrojanscontinue to be the biggest
threats to consumers and small and medium-sized enterprises,
according toBitDefender
Labs' malware reportfor the first half of
2007. The Peed Trojan is the top threat to date in 2007, variants
of which accounted for more than 30 per cent of all threats
detected.
Trojans have proven to be the most popular type of malware this
year with a generic behavior-based Trojan signature coming in
second on the top 10 list.
Behaviour-based Trojans are generally
detected and blocked proactively, before being assigned names
and specific signatures. These proactive behaviour-based detections
made up 21.4% of total detections.
Another notable threat detected by BitDefender Labs is the
Win32.Sality.M virus, the only true virus to make the list. While
the highly-dangerous polymorphic virus spreads using the Bagle mass
mailer as one of its vectors, the Bagle virus alone did not make
the 2007 list.
BitDefender's top 10 malware list for the first half of 2007
1. Trojan.Peed.Gen
2. BehavesLike:Trojan.Downloader
3. Win32.Netsky.P@mm
4. Trojan.Peed.A
5. Win32.NetSky.D@mm
6. Win32.Nyxem.E@mm
7. Win32.Sality.M
8. GenPack:Trojan.Downloader.Tibs.I
9. Trojan.Peed.P
10. Win32.Netsky.AA@mm