“March’s data shows that the malware field is fairly evenly distributed, with just a half a percent difference between the top five,” comments Paul Brook, managing director of ESET UK. “Although it is obvious from the various payloads that the main objective is still to steal money or personal information, the fact that there is no clear leader in the top ten could indicate that malware writers think that a multi-layered approach is just as good a strategy for attack, as it is for defence.”
Out of the top 10 ranking threats, the Agent.NCC trojan constituted more than 2% of all threats. Detected as Win32/PSW.Agent.NCC, this trojan is used to steal passwords through key-logging.
Second in the ranking for March is Netsky.Q, which reached 1.77% of detection last month. The Netsky family is one of the most prevalent families of malware ever to hit the wild. Still in the top ten more than a year after its initial discovery, Netsky.Q and its relatives show no sign of disappearing any time soon.
In third place is the trojan, Win32/TrojanDownloader.Agent.AWF, which reached 1.69% of detections during last month. This threat is used for downloading other malware from web sites to create botnets that are then used for propagating spam and delivering DDOS attacks.
Top 10 Threats for March 2007
1 Win32/PSW.Agent.NCC– 2.00%
2 Win32/Netsky.Q – 1.78%
3 TrojanDownloader.Agent.AWF – 1.69%
4 Win32/Adware.Boran – 1.55%
5 Win32/PSW.QQRob – 1.51%
6 WIN32/Adware.Yisou – 1.46%
7 Win32/Perlovga – 1.36%
8 Win32/Medbot.HF – 1.19%
9 Win32/Nuwar.gen – 1.18%
10 Win32/BHO.G – 1.16%
Kaynak : 