Top 10 Malware Threats for July 2010 from Sunbelt Software

Top Malware Detections for July 2010

Sunbelt Software, recently acquired by GFI Software, today released its report on the top 10 most prevalent malware threats for the month of July 2010.

The report shows the biggest threats to Sunbelt’s customers were Trojans and the Downad/Conficker worm. Trojans detected as Trojan.Win32.Generic!BT were the top detection with 29.08 percent of the total. This particular Trojan has held the top position for several months: in June with 27.16 percent and in May with 27.79 percent of the total detections.

Two other widespread detections made it into the top-10 — Trojan.Win32.Meredrop, with 1.01 percent of detections and Trojan.Win32.Generic!SB.0 (0.92 percent) — and Trojan.Win32.Malware.a (0.84 percent.) made a return to the top-10.

Trojan.Win32.Meredrop is a generic detection for a number of Trojans that install and run a variety of malware on a victim’s machine. They are usually packed and may contain multiple Trojans, backdoors and worms. Trojan.Win32.Generic!SB.0 is a generic detection for password-stealing Trojan horse programs that install keyloggers. Trojan.Win32.Malware.a is a detection for a variety of malicious code.

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

1. Trojan.Win32.Generic!BT 29.08 %

2. Trojan-Spy.Win32.Zbot.gen 4.17 %

3. Trojan.Win32.Generic.pak!cobra 3.29 %

4. INF.Autorun (v) 2.93 %

5. BehavesLike.Win32.Malware (v) 1.23 %

6. Worm.Win32.Downad.Gen (v) 1.05 %

7. Trojan.Win32.Meredrop 1.01 %

8. Trojan.Win32.Generic!SB.0 0.92 %

9. Trojan.ASF.Wimad (v) 0.85 %

10. Trojan.Win32.Malware.a 0.84 %

The top 10 results represent the number of times a particular malware infection detected and reported back to ThreatNet, Sunbelt’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 the threats propagate through stealth installations or social engineering.