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Top ten e-threats for July

BitDefender UK : 31 July, 2009  (Technical Article)
Autorun bug enters top ten for July with Trojans dominating the top three places
The latest e-threat to be detected by BitDefender labs is the Worm.Autorun.VHG - a worm that exploits the Autorun bug in Windows, which has made the Conficker/Downadup malware famous. The Worm.Autorun.VHG comes in at number ten on BitDefender's list of top e-threats for July.

Trojans continue to dominate with five of the ten e-threats on the list, making this the most common malware for the second month in a row.

Number one spot on the list goes to Trojan.Clicker.CM, which is becoming increasingly effective by bypassing popup blockers. As a result, it now represents over 11 percent of infections discovered by BitDefender labs in the past month.

Another Trojan - AutorunINF.Gen holds its ranking at number two, while Trojan.Wimad continues to hold the number three spot, slightly increasing to just over 6 percent of infections.

In fourth place is Downadup.Gen, also known as Conficker or Kido. Downadup.Gen increased to over 4 percent of infections and gained one position on the top ten list.

Win32.Sality.OG, a rootkit-installing file infector, climbed from number six to number five on this month's list.

An old SWF, Exploit.SWF.Gen, is still in heavy use in the wild and lands at sixth place on the list. Its popularity is partly due to the fact that, until recently, Adobe was distributing an old version of the player via its website, relying on the player's auto-update feature (which is optional) to pull-in the required security patches.

Seventh position belongs to Trojan.Autorun.AET, which is another trojan exploiting the Autorun vulnerability in Windows.

Trojan.JS.PYV comes in at number eight this month with 1.91 percent of total infections. Gaining popularity in ninth position is Exploit.PDF-JS.Gen, an exploit that uses a vulnerability in the way some versions of the Adobe PDF Reader parse embedded javascript.

BitDefender's July 2009 top ten e-threat list includes:

1. Trojan.Clicker.CM 11.41
2. Trojan.AutorunINF.Gen 10.14
3. Trojan.Wimad.Gen.1 6.16
4. Win32.Worm.Downadup.Gen 4.15
5. Win32.Sality.OG 2.91
6. Exploit.SWF.Gen 2.49
7. Trojan.Autorun.AET 2.34
8. Trojan.JS.PYV 1.91
9. Exploit.PDF-JS.Gen 1.74
10. Worm.Autorun.VHG 1.64
Other malware 55.13
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