Malwarebytes catches 3 trojans missed by Avast

Any suggested followups to perform?

Malwarebytes’ Anti-Malware 1.46
www.malwarebytes.org

Database version: 4199

Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

2010/06/15 22:07:53
mbam-log-2010-06-15 (22-07-53).txt

Scan type: Full scan (C:|)
Objects scanned: 351906
Time elapsed: 53 minute(s), 16 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 1
Registry Values Infected: 0
Registry Data Items Infected: 1
Folders Infected: 0
Files Infected: 1

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_CURRENT_USER\Software\M5T8QL3YW3 (Trojan.FakeAlert) → Quarantined and deleted successfully.

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\NameServer (Trojan.DNSChanger) → Data: 93.188.165.170,93.188.161.175 → Quarantined and deleted successfully.

Folders Infected:
(No malicious items detected)

Files Infected:
C:\WINDOWS\Tasks{8C3FDD81-7AE0-4605-A46A-2488B179F2A3}.job (Trojan.Downloader) → Quarantined and deleted successfully.

I suggest:

  1. Clean your temporary files.
  2. Schedule a boot time scanning with avast with archive scanning turned on. If avast does not detect it, you can try DrWeb CureIT! instead.
  3. Use MBAM (or SUPERantispyware or even Spyware Terminator) to scan for spywares and trojans. If any infection is detected, it is better and safer to send the infected file(s) to quarantine (Chest), rather than simply deleting them.
  4. Test your machine with anti-rootkit applications. I suggest avast! antirootkit or Trend Micro RootkitBuster.
  5. Make a HijackThis log to post here or this analysis site. Or even submit the RunScanner log to to on-line analysis.
  6. Clean your Hosts file (replacing it) with HostsMan tool.
  7. Disable System Restore and then reenable it again.
  8. Immunize your system with SpywareBlaster.
  9. Check if you have insecure applications with Secunia Software Inspector.