AV-Test is not as well-known in the United States as it should be, possibly because the group is located in Germany at the Otto von Guericke University Magdeburg. Andreas Marx, manager of AV-Test, provided test results showing how long it took 23 major anti-virus programs worldwide to come up with new signature files during the past several weeks. The new signature files involved in the test were developed to fight four novel viruses that weren’t being caught by the preventive or “heuristic” techniques of most anti-virus programs. These four new viruses are known as Dumaru.Y, MyDoom.A, Bagle.A and Bagle.B.
AV-Test uses special scripts to check the servers at anti-virus companies every five minutes, looking for new signature files.
H:M Anti-Virus Program
06:51 Kaspersky
08:21 Bitdefender
08:45 Virusbuster
09:08 F-Secure
09:16 F-Prot
09:16 RAV
09:24 AntiVir
10:31 Quickheal
10:52 InoculateIT-CA
11:30 Ikarus
12:00 AVG
12:17 Avast
12:22 Sophos
12:31 Dr. Web
13:06 Trend Micro
13:10 Norman
13:59 Command
14:04 Panda
17:16 Esafe
24:12 A2
26:11 McAfee
27:10 Symantec
29:45 InoculateIT-VET
Although new signatures are sometimes posted very quickly in special cases, many major anti-virus services schedule regular online updates only once or twice a week, AV-Test says. Other providers, such as F-Secure, schedule updates seven times a week, while Kaspersky Labs schedules them 20 times a week, according to AV-Test’s figures.
Kaspersky schedules new signature files the most often — and earned the fastest average response times in AV-Test’s real-time trials, shown above — because the company has a large number of people around the world analyzing viruses and developing cures, Holdsworth says.
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