Kaspersky released a list of the Top 20 most dangerous viruses

Kaspersky antivirus software

Not all malicious virus programs and the like damaging the victim's computer. Several mild attacks just a little annoying. However, there are also some malicious programs that ferocious to alter or destroy files and even take over the victim computing system.

Kaspersky released a list of the Top 20 the most ferocious programs this month that assessed based on the number of objects that attacked the victim's computer. Malicious programs that capable of infecting files become the majority in this ranking.

Sality virus variants dominate the list. Sality.y is a new variant of Virus.Win32.Sality that coming into the Top 20 list this month. Sality.z has appeared on the list of the Top 20 for the second time. This shows the high activity of this family as a self-replicating program.

An interesting newcomer in the rank-2 is a P2P-Worm.Win32.Deecee.a. This worm spreads via peer-to-peer DC, and capable to downloading other malicious files. It has reached the Top 20 ranking on the list a second time not because of the number of machines infected by it, but because the number of copies of itself on every infected computer.

P2P-Worm.Win32.Deecee.a copying itself many times when being installed. Once installed, this worm copies itself to make it accessible to the public. The files infected with this kind of distribution might have a name with the following pattern: a prefix such as '(CRACK) "," (PATCH) ", then the name of a popular application like:' ADOBE ILLUSTRATOR (all versions)", "GTA SAN ANDREAS ACTION 1 DVD ", and others. By the way, here is the list:

1. Virus.Win32.Sality.aa
2. Worm.Win32.Mabezat.b
3. Net-Worm.Win32.Nimda
4. Virus.Win32.Xorer.du
5. Virus.Win32.Alman.b
6. Virus.Win32.Sality.z
7. Virus.Win32.Parite.b
8. Virus.Win32.Virut.q
9. Trojan-Downloader.HTML.Agent.ml
10. Virus.Win32.Virut.n
11. Email-Worm.Win32.Runouce.b
12. Worm.Win32.Otwycal.g
13. P2P-Worm.Win32.Bacteraloh.h
14. Virus.Win32.Hidrag.a
15. Virus.Win32.Small.l
16. Virus.Win32.Parite.a
17. Worm.Win32.Fujack.bd
18. P2P-Worm.Win32.Deecee.a
19. Trojan.Win32.Obfuscated.gen
20. Virus.Win32.Sality.y