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How do I remove nzdflkioezncfiunfindiuchiuenfcdc


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4 replies to this topic

#1 russbarnes

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Posted 05 June 2009 - 01:16 PM

Hi All

My laptop recently got infected by a Trojan. I scanned for the Trojan using Kaspersky and deleted the file(s) found. I wanted to make sure the Trojan had fully disappeared from my system but each time I run Kaspersky the Trojan reappears. Spybot doesnít find the Trojan but another program MalwareBytes does. MalwareBytes finds the registry entry and Iím able to delete it. For some bizarre reason in my registry the following reg file keeps coming back nzdflkioezncfiunfindiuchiuenfcd. No matter how many times I delete it in Normal System mode and in Safe mode the registry entry keeps coming back. I have disabled it from the RUN (msconfig). I really donít know what else to do, to try and rid my system of this annoying and potential harmful registry/Trojan file.

I donít want to have to reformat my laptop and start from square one. Your help would be greatly appreciated and I will try any suggestions to remove the infection.

Here is the MalwareBytes Report....

Malwarebytes' Anti-Malware 1.37
Database version: 2225
Windows 5.1.2600 Service Pack 3

05/06/2009 19:36:06
mbam-log-2009-06-05 (19-36-06).txt

Scan type: Quick Scan
Objects scanned: 87324
Time elapsed: 3 minute(s), 20 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: 0

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\nzdflkioezncfiunfindiuchiuenfcdc (Trojan.Downloader) -> Not selected for removal.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)

Thanks,
Russ Barnes

Edited by russbarnes, 05 June 2009 - 01:49 PM.

Russ Barnes

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#2 garmanma

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Posted 05 June 2009 - 02:00 PM

Not selected for removal.


Did you follow the instructions and click on Remove Selected Items?


Update mbam and run a FULL scan
Please post the results
Mark
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why won't my laptop work?

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#3 russbarnes

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Posted 05 June 2009 - 04:44 PM

Hi garmanma

Thanks for your reply

After the scan had completed it said it had found one infection. I clicked next. Selected the Trojan by ticking the check box then removed it.

I have also gone into the registry via REGEDIT and looked up the following

-----------------------------------------------------------------------------------------------------------------------------
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzdflkioezncfiunfindiuchiuenfcdc
-----------------------------------------------------------------------------------------------------------------------------

I am able to delete the registry key but once I close the Registry window and reopen it and browse to the location again it reappears. It only stays deleted when I am in SAFE MODE. If I delete it and then restart the system in NORMAL MODE it appears again.
Russ Barnes

#4 garmanma

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Posted 06 June 2009 - 07:05 PM

Update mbam and run a FULL scan
Please post the results

Then run ATF and SAS



ATF
Please download ATF Cleaner by Atribune & save it to your desktop.
  • 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".

------------------------------------

SAS,may take a long time to scan
Please download and scan with 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. Double-click on the hyperlink for Download Installer and save SASDEFINITIONS.EXE to your desktop. Then double-click on SASDEFINITIONS.EXE to install the definitions.)
  • In the Main Menu, 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".

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.

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
Become a BleepingComputer fan: Facebook and Twitter

#5 russbarnes

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Posted 07 June 2009 - 05:05 PM

Thanks for replying again garmanma!! :huh:

:thumbsup: downloader trojan nzdflkioezncfiunfindiuchiuenfcdc

I managed to delete the trojan fully myself by completely deleting the Run registry folder. I had tried several anti-spyware/malware and 3 different types of virus scanners. Yes ALL detected the trojan and attempted to delete it. Every time I restarted my system the trojan would reappear and would be detected again.

:trumpet:

I noticed that the following Run folder wasn't captialised at the begining. Instead it was HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\run

The run key only had 3 registry string values one of which was the trojan entry nzdflkioezncfiunfindiuchiuenfcdc.

The following cured my system...

1. Turn off System Restore
1. Delete run folder from HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion
2. Run CCleaner
3. Run Malwarebytes (Quick Scan)
4. Restart system
5. Run Kaspersky AV (Full Scan)
6. Then to double check Malwarebytes (Full Scan)
9. Turn ON System Restore and create a Restore Point if one hasn't been created automatically.

My system seems to be cured and I feel confident that ALL infections have been removed. :inlove:

I haven't seen any other forum posts on Google regarding this downloader trojan so please let me know if you have any problems.

Cheers, Russ :flowers:

Edited by russbarnes, 07 June 2009 - 05:06 PM.

Russ Barnes




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