Sunbelt Software Announces Top Ten Malware Threats for May

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VIPRE Antivirus + Antispyware Offers Spyware and Malware Protection From Today's most Prevalent Threats

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Sunbelt Software, a leading provider of Windows security software, today announced the top ten most prevalent malware threats for the month of May 2009. The report, compiled from monthly scans performed by Sunbelt's award-winning antispyware tool, CounterSpy™, and its anti-malware solution, VIPRE® Antivirus + Antispyware, is a service of the Sunbelt Software Malware Research Labs.

The results represent the number of times a particular malware infection was detected during CounterSpy and VIPRE scans that report back to Sunbelt's community of opt-in users.

The top ten most prevalent spyware threats for the month of May are:

1.    Trojan-Spy.Win32.Zbot.gen        6.34%

2.    BehavesLike.Win32.Malware (v)        5.28%

3.    Trojan-Downloader.Zlob.Media-Codec     2.48%

4.    Trojan.1        2.45%

5.    Virtumonde        2.11%

6.    Trojan.DNSChanger.Gen        2.01%

7.    Exploit.PDF-JS.Gen (v)        1.90%

8.    Trojan.JS.Obfuscated.gen.a (v)        1.86%

9.    INF.Autorun (v)        1.39%

10.    Trojan-Downloader.Generic        1.31%

About Sunbelt Software's Malware Research Labs
The Sunbelt Software Malware Research Labs specializes in the discovery and analysis of dangerous vulnerabilities (i.e., security holes, bugs, maligned features or combination of operations) that could be exploited for Internet and email attacks. The research team actively researches new malware outbreaks, creating and testing new threat definitions on a constant basis. For detailed threat research information and to view the top ten threats in real-time please visit Sunbelt Malware Research Labs.

About Sunbelt Software:
Headquartered in Tampa Bay (Clearwater), Fla., Sunbelt Software was founded in 1994 and is a leading provider of Windows security and management software with product solutions in the areas of antispam software and antivirus software, antispyware software, and vulnerability assessment. Leading products include the CounterSpy and VIPRE product lines, Ninja Email Security, Sunbelt Exchange Archiver, and CWSandbox malware analysis tools. The company, located in Tampa Bay, Florida is part of the French-based Sunbelt International Group.

For more information about Sunbelt Software, please visit the company's website at: To learn more about current activities, products, and ideas at Sunbelt Software, please visit Sunbelt's corporate blog at


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Laurie Murrell
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