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Trojan.Kobcka A makes its debut on the August list

E-mail threats such as the ancient Netsky.P virus and the Peed trojan (aka ‘Storm’ worm) have topped the BitDefender list of malware threats for August 2007. The infamous ‘Storm’ worm is back with a vengeance with nearly 25 per cent of total detected threats.

The widespread use of a Windows metafile rendering exploit which surfaced at the end of 2005 and was patched against in early 2006 came in at second place in the top ten with 21.5 per cent of total detections. It is disquieting because it suggests there are still a lot of unpatched machines around.

The only new entrant into the top ten is a recent and rather sophisticated rootkit which goes by the name of Trojan.Kobcka.A and is probably used to hide a mass-mailer virus.

BitDefender’s August 2007 Top 10 malware list includes:

1. Trojan.Peed.Gen 24.7%
2. Exploit.Win32.WMF-PFV 21.5%
3. BehavesLike:Trojan.Downloader 19.06%
4. Win32.Netsky.P@mm 5.89%
5. Trojan.Pandex.H 2.54%
6. Win32.NetSky.D@mm 1.92%
7. Win32.Nyxem.E@mm 1.80%
8. Win32.Netsky.AA@mm 1.80%
9. Trojan.Kobcka.A 1.24%
10. Win32.Sality.M 1.24%

(Note: BitDefender’s August 2007 Top 10 list of malware accounts for 81.69% of the total number of all viruses seen in circulation.)

Commenting on the report, head of BitDefender Labs, Viorel Canja said: "The fact that Trojan.Kobcka has racked up more than one per cent of the total malware detections and made it into our top ten, suggests that we may see it, or new variants of it infect even more machines over the coming months."

For further details on the latest malware detected in the wild, please visit BitDefender’s Defense Portal site at:

About BitDefender®

BitDefender is a leading global provider of security solutions that satisfy the protection requirements of today's computing environment. The company offers one of the industry's fastest and most effective lines of security software, setting new standards for threat prevention, timely detection and mitigation. BitDefender delivers products and services to over 41 million home and corporate users in more than 180 countries. BitDefender has offices in the United States, the United Kingdom, Germany, Spain and Romania. Further information about BitDefender can be obtained by visiting:

Mike Ottewell
MJO Associates
Tel: 01538 361217


Georg Brauer, PR & Marketing
Softwin GmbH (BitDefender)
Headquarters Western Europe
Saarlandstrasse 84
D-44139 Dortmund
Tel.: + 49 2 31 – 99 33 98 0
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