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Likely Infected with Perfect Defender Trojan


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#1 c3baker

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Posted 13 December 2008 - 05:11 PM

Hello,

My laptop has been infected with some type of Trojan virus, I believe it is the Perfect Defender trojan.

The Symptoms are:

1) I get a frequent pop-up Windows Security Alert message (which is clearly fake) telling me that
"There is unauthorized activity on my computer" from win32.netsky.q and the message claims that this is a trojan and keylogger and that Windows cannot remove it but the message provides an option to go online to search for recommended software, which of course leads to a website where you can download Perfect Defender 2009, which I know to be malware.

2) Outside of running Windows Vista in safe mode I cannot open any browser (Firefox or IE) for more then a few minutes before they crash. MSN also crashes when I attempt to log into my account.

3) Windows Explorer itself crashes immediately when I attempt to use the search tool bar at any time outside of safe mode.

All crashes report a problem with "ovlkpl.dll", I don't know what this is and cannot find it as a running process or a file.

I have run scans using Avast and Malwarebytes Anti-Malware, they did find some infected files which were removed but the problem persists and neither of those programs can find any more infections.

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#2 garmanma

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Posted 13 December 2008 - 05:29 PM

Please reboot your computer and update Malwarebytes. This time do a FULL scan and post the new log here
Mark
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#3 c3baker

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Posted 13 December 2008 - 07:28 PM

I have updated and re-run Malwarebytes with a full scan, this time it found two infected items which I had removed. Here is the log:

Malwarebytes' Anti-Malware 1.31
Database version: 1497
Windows 6.0.6000

13/12/2008 7:26:10 PM
mbam-log-2008-12-13 (19-26-10).txt

Scan type: Full Scan (C:\|)
Objects scanned: 337175
Time elapsed: 1 hour(s), 29 minute(s), 28 second(s)

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

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\windpipe (Trojan.FakeAlert) -> Quarantined and deleted successfully.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
C:\Users\Charles\AppData\Roaming\Google\windpipe.exe (Trojan.FakeAlert) -> Quarantined and deleted successfully.

#4 c3baker

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Posted 13 December 2008 - 07:34 PM

I think my problem is fixed. I have just rebooted to normal mode and there's no longer any alert message and I can now open Firefox without crashing.

Thanks

#5 garmanma

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Posted 14 December 2008 - 11:18 AM

Now you should Create a New Restore Point to prevent possible reinfection from an old one. Some of the malware you picked up could have been saved in System Restore. Since this is a protected directory your tools cannot access to delete these files, they sometimes can reinfect your system if you accidentally use an old restore point. Setting a new restore point AFTER cleaning your system will help prevent this and enable your computer to "roll-back" to a clean working state.

The easiest and safest way to do this is:
  • Go to Start > Programs > Accessories > System Tools and click "System Restore".
  • Choose the radio button marked "Create a Restore Point" on the first screen then click "Next". Give the R.P. a name, then click "Create". The new point will be stamped with the current date and time. Keep a log of this so you can find it easily should you need to use System Restore.
  • Then use Disk Cleanup to remove all but the most recently created Restore Point.
  • Go to Start > Run and type: Cleanmgr
  • Click "Ok"
  • Disk Cleanup will scan your files for several minutes, then open.
  • Click the "More Options" Tab.
  • Click the "Clean up" button under System Restore.
  • Click Ok. You will be prompted with "Are you sure you want to delete all but the most recent restore point?"
  • Click Yes, then click Ok.
  • Click Yes again when prompted with "Are you sure you want to perform these actions?"
  • Disk Cleanup will remove the files and close automatically.
Vista Users can refer to these links: Create a New Restore Point and Disk Cleanup.
Mark
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why won't my laptop work?

Having grandkids is God's way of giving you a 2nd chance because you were too busy working your butt off the 1st time around
Do not send me PMs with problems that should be posted in the forums. Keep it in the forums, so everyone benefits
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