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Behaviour-Based Threats Increase For March

Sunbelt Software : 06 April, 2010  (Technical Article)
Sunbelt Software releases its top 10 list of malware threats for March 2010 with Trojans continuing to dominate
Sunbelt Software has announced the top 10 most prevalent malware threats for the month of March 2010. The report, compiled from monthly scans performed by Sunbelt Software's award-winning anti-malware solution, Vipre Antivirus, and its antispyware tool, CounterSpy, is a service of SunbeltLabs and its global team of researchers.

The list of detections for March shows the continued prevalence of Trojan horse programs circulating on the Internet and the growing trend of generic and behaviour-based detections in antivirus detections. The top two detections − Trojan.Win32.Generic!BT (31.07 percent) and Trojan-Spy.Win32.Zbot.gen (4.97 percent) - made up over a third of all detections, with the top 10 making up more than 50 percent of all detections for the month. New entries to the list included INF.Autorun (v) and BehavesLike.Win32.Malware (v) appearing in the fifth and sixth spots, replacing Trojan.Win32.Agent and Trojan-Spy.Win32.Zbot.gen (v) which dropped off the list.

Other detections with a significant change in March include Exploit.PDF-JS.Gen (v), which saw its percentage of total detections grow by almost 50 percent, and Trojan.Win32.Generic.pak!cobra - which saw a significant drop in its share from 3.37 percent to 1.37 percent of all detections.

"Good antivirus defence requires not only up-to-the-minute detections of malware, but fast detection as well," said Sunbelt Software research centre manager Tom Kelchner. "Generic and behaviour-based detections help Vipre nail a lot of the polymorphic variants and newly-created malicious code. It might be new and evade detections for existing malicious activity, but when it runs in Vipre's MX-V virtual environment, the malicious activity is sure to be caught."

"It's a cat-and-mouse game that's been going on as long as there have been antivirus engines. The hackers try to come up with something that will evade detection and steal something valuable from its victims. Sunbelt Software creates detection technology that works fast and seamlessly to not bog down our customers' systems," Kelchner added.

The top 10 results represent the number of times a particular malware infection was detected during Vipre and CounterSpy scans that report back to ThreatNet, Sunbelt Software's community of opt-in users. These threats are classified as moderate to severe based on method of installation among other criteria established by SunbeltLabs. The majority of these threats propagate through stealth installations or social engineering.

The top 10 most prevalent malware threats for the month of March are:

1. Trojan.Win32.Generic!BT 31.07%
2. Trojan-Spy.Win32.Zbot.gen 4.97%
3. Exploit.PDF-JS.Gen (v) 3.76%
4. Trojan.Win32.Generic!SB.0 3.36%
5. INF.Autorun (v) 1.70%
6. BehavesLike.Win32.Malware (v) 1.47%
7. Trojan.Win32.Generic.pak!cobra 1.37%
8. Trojan.Win32.Malware 1.37%
9. Trojan.ASF.Wimad (v) 1.23%
10. Virtumonde 1.21%

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