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Infected Dll Files


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7 replies to this topic

#1 viper23

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Posted 17 December 2007 - 02:42 AM

I really need help got a couple dll files the avg see's as a threat and can't seem to delete them or manually remove them had them for 2-3 days now :thumbsup:
and the 2 files are as follows:

C:\WINDOWS\system32\ctl3d32q.dll
C:\WINDOWS\system32\ctl3d32q.bak

any help would be great thanks :flowers:

Edited by viper23, 17 December 2007 - 02:49 AM.


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#2 Budapest

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Posted 17 December 2007 - 03:10 AM

Have you tried running your virus scan in Safe Mode?
The power of accurate observation is commonly called cynicism by those who haven't got it.

—George Bernard Shaw

#3 quietman7

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Posted 17 December 2007 - 09:38 AM

Anytime you come across a suspicious file for which you cannot find any information about, you can submit it to jotti's virusscan or virustotal.com. In the "File to upload & scan" box, browse to the location of the suspicious file and submit (upload) it for scanning/analysis.
Post back with the results of the file analysis.
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#4 viper23

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Posted 17 December 2007 - 06:35 PM

ok thanks guys i will try both of them and let u know what happens

#5 viper23

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Posted 18 December 2007 - 02:21 AM

this is what it came up with for this file: ctl3d32q.dll.bak

Antivirus Version Last Update Result
AhnLab-V3 - - -
AntiVir - - TR/Crypt.Morphine.Gen
Authentium - - -
Avast - - -
AVG - - Obfustat.ACRR
BitDefender - - -
CAT-QuickHeal - - -
ClamAV - - -
DrWeb - - -
eSafe - - Suspicious File
eTrust-Vet - - -
Ewido - - -
FileAdvisor - - -
Fortinet - - -
F-Prot - - -
F-Secure - - -
Ikarus - - -
Kaspersky - - -
McAfee - - -
Microsoft - - VirTool:Win32/Obfuscator.Q
NOD32v2 - - -
Norman - - -
Panda - - Suspicious file
Prevx1 - - Trojan.Vundo
Rising - - -
Sophos - - -
Sunbelt - - -
Symantec - - -
TheHacker - - -
VBA32 - - -
VirusBuster - - -
Webwasher-Gateway - - Trojan.Crypt.Morphine.Gen

and the ctl3d32q.dll says:
0 bytes size received / Se ha recibido un archivo vacio

Edited by viper23, 18 December 2007 - 02:21 AM.


#6 quietman7

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Posted 18 December 2007 - 09:11 AM

You did not say if you rescaned with AVG in safe mode. If you did and that did not help, then do this:

Follow the the instructions for using Vundofix in BC's self-help tutorial: "How To Remove Vundo/Winfixer Infection".

After running VundoFix, a text file named vundofix.txt will have automatically been saved to the root of the system drive, usually at C:\vundofix.txt. Please copy & paste the contents of that text file into your next reply.

Please download ATF Cleaner by Atribune & save it to your desktop. DO NOT use yet.
Please download and install SUPERAntiSpyware Free
  • Double-click SUPERAntiSypware.exe and use the default settings for installation.
  • An icon will be created on your desktop. Double-click that icon to launch the program.
  • If asked to update the program definitions, click "Yes". If not, update the definitions before scanning by selecting "Check for Updates". (If you encounter any problems while downloading the updates, manually download them from here and unzip into the program's folder.)
  • Under the "Configuration and Preferences", click the Preferences... button.
  • Click the "General and Startup" tab, and under Start-up Options, make sure "Start SUPERAntiSpyware when Windows starts" box is unchecked.
  • Click the "Scanning Control" tab, and under Scanner Options, make sure the following are checked (leave all others unchecked):
    • Close browsers before scanning.
    • Scan for tracking cookies.
    • Terminate memory threats before quarantining.
  • Click the "Close" button to leave the control center screen and exit the program.
  • Do not run a scan just yet.
Reboot your computer in "Safe Mode" using the F8 method. To do this, restart your computer and after hearing your computer beep once during startup (but before the Windows icon appears) press the F8 key repeatedly. A menu will appear with several options. Use the arrow keys to navigate and select the option to run Windows in "Safe Mode".

Double-click ATF-Cleaner.exe to run the program.
  • Under Main "Select Files to Delete" choose: Select All.
  • Click the Empty Selected button.
  • If you use Firefox browser click Firefox at the top and choose: Select All
  • Click the Empty Selected button.
    If you would like to keep your saved passwords, please click No at the prompt.
  • If you use Opera browser click Opera at the top and choose: Select All
  • Click the Empty Selected button.
    If you would like to keep your saved passwords, please click No at the prompt.
  • Click Exit on the Main menu to close the program.
Note: On Vista, "Windows Temp" is disabled. To empty "Windows Temp" ATF-Cleaner must be "Run as an Administrator".

Scan with SUPERAntiSpyware as follows:
  • Launch the program and back on the main screen, under "Scan for Harmful Software" click Scan your computer.
  • On the left, make sure you check C:\Fixed Drive.
  • On the right, under "Complete Scan", choose Perform Complete Scan and click "Next".
  • After the scan is complete, a Scan Summary box will appear with potentially harmful items that were detected. Click "OK".
  • Make sure everything has a checkmark next to it and click "Next".
  • A notification will appear that "Quarantine and Removal is Complete". Click "OK" and then click the "Finish" button to return to the main menu.
  • If asked if you want to reboot, click "Yes" and reboot normally.
  • To retrieve the removal information after reboot, launch SUPERAntispyware again.
    • Click Preferences, then click the Statistics/Logs tab.
    • Under Scanner Logs, double-click SUPERAntiSpyware Scan Log.
    • If there are several logs, click the current dated log and press View log. A text file will open in your default text editor.
    • Please copy and paste the Scan Log results in your next reply.
  • Click Close to exit the program.

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#7 viper23

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Posted 18 December 2007 - 08:05 PM

i booted in safe mode did scan said 1 file healed rebooted firwall dropped avg died system restor also went down and that was the end of it couldnt get it to boot up after that had to format and reinstall windows said partiton unkown :thumbsup: now it's just a long process reinstalling every thing

thanks u all for the advise viper23 :flowers:

#8 quietman7

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Posted 19 December 2007 - 08:52 AM

Sorry to hear you had to go that route but sometimes with more serious malware infections, that really is the best thing to do.

To protect yourself against malware and reduce the potential for re-infection, be sure to read:
"Simple and easy ways to keep your computer safe".
"How did I get infected?, With steps so it does not happen again!".
"Hardening Windows Security - Part 1" and "Hardening Windows Security - Part 2".
"IE Recommended Minimal Security Settings".

Safe surfing and have a malware free day.
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