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Hidden Driver acdz34m8.sys - What is it?


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#1 onciest

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Posted 03 November 2009 - 10:29 PM

Alright guys, I've been doing a virus scan and I found a virus that basically states it is a hidden driver. It is in my

C:\Windows\System32\Drivers

The file itself is called acdz34m8.sys

What do I do with it?

AVG found it and it won't let me remove it. :/

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#2 boopme

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Posted 03 November 2009 - 10:42 PM

Hello looks like we could use a second opinion on that. can you locate the file and upload it?


Please make sure that you can view all hidden files. Instructions on how to do this can be found here:
How to see hidden files in Windows

Please click this link-->Jotti

When the jotti page has finished loading, click the Browse button and navigate to the following file and click Submit.
<filepath>suspect.file

Please post back the results of the scan in your next post.

If Jotti is busy, try the same at Virustotal: http://www.virustotal.com/


NOTE:
For submission to a specific anti-virus vendor see Submitting Virus Samples: How to Submit a Virus.
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#3 onciest

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Posted 03 November 2009 - 10:50 PM

Okay I cannot find that file, I activated showing hidden files but it still isn't there. This is weird... also AVG isn't opening up when I double click it on the task bar. Aghh...

Edit: AVG won't open through start menu either. >_<

Also, I went through these steps http://www.bleepingcomputer.com/forums/t/34773/preparation-guide-for-use-before-using-malware-removal-tools-and-requesting-help/ and basically as I got to RootRepeal it wouldn't install or open because the Vista I am using is 64bit.

Edited by onciest, 03 November 2009 - 10:55 PM.


#4 boopme

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Posted 03 November 2009 - 11:13 PM

This will work in 64
Please download Sophos Anti-rootkit & save it to your desktop.
alternate download link
Note: If using the vendor's download site you will be asked to register with MySophos so an email containing an activation link can be sent to your email address.

Be sure to print out and read the Sophos Anti-Rookit User Manual and Release Notes.
  • Double-click sar_15_sfx.exe to begin the installation, read the license agreement and click Accept.
  • Allow the default location of C:\Program Files\Sophos\Sophos Anti-Rootkit and click Install.
  • A message will appear "Sophos Anti-Rootkit was successfully installed. Click 'yes' to start it now".
  • Click Yes and allow the driver and its randomly named .tmp file (i.e. F.tmp) to load if asked.
  • If the scan did not start automatically, make sure the following are checked:
    • Running processes
    • Windows Registry
    • Local Hard Drives
  • Click Start scan.
  • Sophos Anti-Rootkit will scan the selected areas and display any suspicious files in the upper panel.
  • When the scan is complete, a pop-up screen will appear with "Rootkit Scan Results". Click OK to continue.
  • Click on the suspicious file to display more information about it in the lower panel which also includes whether the item is recommended for removal.
    • Files tagged as Removable: No are not marked for removal and cannot be removed.
    • Files tagged as Removable: Yes (clean up recommended) are marked for removal by default.
    • Files tagged as Removable: Yes (but clean up not recommended) are not marked for removal because Sophos did not recognize them. These files will require further investigation.
  • Select only items recommended for removal, then click "Clean up checked items". You will be asked to confirm, click Yes.
  • A pop up window will appear advising the cleanup will finish when you restart your computer. Click Restart Now.
  • After reboot, a dialog box displays the files you selected for removal and the action taken.
  • Click Empty list and then click Continue to re-scan your computer a second time to ensure everything was cleaned.
  • When done, go to Start > Run and type or copy/paste: %temp%\sarscan.log
  • This should open the log from the rootkit scan. Please post this log in your next reply. If you have a problem, you can find sarscan.log in C:\Documents and Settings\\Local Settings\Temp\.
Before performing an ARK scan it is recommended to do the following to ensure more accurate results and avoid common issues that may cause false detections.
  • Disconnect from the Internet or physically unplug you Internet cable connection.
  • Clean out your temporary files.
  • Close all open programs, scheduling/updating tasks and background processes that might activate during the scan including the screensaver.
  • Temporarily disable your anti-virus and real-time anti-spyware protection.
  • After starting the scan, do not use the computer until the scan has completed.
  • When finished, re-enable your anti-virus/anti-malware (or reboot) and then you can reconnect to the Internet.

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#5 onciest

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Posted 03 November 2009 - 11:29 PM

Alright man Sophos is doing its thing. I will post up the results in a few.

Thanks again for taking the time for this. Don't go away! ^_^

#6 onciest

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Posted 03 November 2009 - 11:56 PM

Okay for two items I got an icon that requires attention, and they both say -

Warning
Error: Encountered corrupt data structures during scan of drive C:. We suggest you check this disk for errors.
Fatal error
Error: Encountered corrupt data structures during scan of drive (null). We suggest you check this disk for errors.

What should I do about these?

The rest are fine they are just hidden files and they all suggest to keep them. Also, there aren't any files that are suggested to remove. :/

Edited by onciest, 03 November 2009 - 11:57 PM.


#7 boopme

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Posted 04 November 2009 - 09:48 AM

Hi ,it got late for me.

Open My Computer in Windows XP.
Select the hard drive you want to scan.
Click Tools tab from the hard drive properties window. The ScanDisk utility can be activated from the Error-checking box at the top of the Tools tab. To begin, click the Check Now button.
Select the Automatically Fix File System Errors box.
NOTE: For a more thorough scan (maybe 10 hours). Put a check in the Scan for and Attempt Recovery of Bad Sectors box.
Click Start to scan.
When it's done it will show a report thatwill tell you what errors it found and fixed.
Click the Close.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook




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