BleepingComputer.com: Problem with Trojan horse BackDoor.Generic11.ZNE

Greetings,

Recently my AVG 8's resident shield has picked up multiple threat detections that are exactly the same, for example the screen would look something like this:

File Infection Result
C:\Windows\System32\hjgruiuoujbkgs.dll Trojan horse BackDoor.Generic11.ZNE Infected
C:\Windows\System32\hjgruiuoujbkgs.dll Trojan horse BackDoor.Generic11.ZNE Infected
C:\Windows\System32\hjgruiuoujbkgs.dll Trojan horse BackDoor.Generic11.ZNE Infected
C:\Windows\System32\hjgruiuoujbkgs.dll Trojan horse BackDoor.Generic11.ZNE Infected
C:\Windows\System32\hjgruiuoujbkgs.dll Trojan horse BackDoor.Generic11.ZNE Infected
................................................................................
................................................................................


The list extends even further gradually.

To try and resolve this problem I have tried to quarantine/remove/heal the Trojan, however it keeps coming back.

Opening my control panel seems to stimulate the production of this trojan, as more detections appear on my AVG's resident shield.



My laptop runs on the Windows Vista Home Premium

Below is my laptop's model information:

Manufacturer: Hewlett-Packard
Model: HP Pavilion dv9500 Notebook PC



I really hope that someone could help me with this and thank you for your time.

Backdoor Trojans can be very dangerous.

This post has been edited by Computer Pro: 09 July 2009 - 03:15 PM

Hello..A backdoor Trojan can allow an attacker to
gain control of the system, log keystrokes, steal passwords, access personal
data, send malevolent outgoing traffic, and close the security warning
messages displayed by some anti-virus and security programs.

I would advise you to disconnect this PC from the Internet, and then go to
a known clean computer and change any passwords or security information held
on the infected computer. In particular, check whatever relates to online
banking financial transactions, shopping, credit cards, or sensitive
personal information. It is also wise to contact your financial institutions
to apprise them of your situation.


Next run MBAM (MalwareBytes):

NOTE: Before saving MBAM please rename it to zztoy.exe....now save it to your desktop.

Please download Malwarebytes Anti-Malware and save it to your desktop.
alternate download link 1
alternate download link 2

MBAM may "make changes to your registry" as part of its disinfection routine. If using other security programs that detect registry changes (ie Spybot's Teatimer), they may interfere or alert you. Temporarily disable such programs or permit them to allow the changes.

• Make sure you are connected to the Internet.
  
• Double-click on mbam-setup.exe to install the application.
  
• When the installation begins, follow the prompts and do not make any changes to default settings.
  
• When installation has finished, make sure you leave both of these checked:
  • Update Malwarebytes' Anti-Malware
    
  • Launch Malwarebytes' Anti-Malware
  
  
• Then click Finish.

MBAM will automatically start and you will be asked to update the program before performing a scan.

• If an update is found, the program will automatically update itself. Press the OK button to close that box and continue.
  
• If you encounter any problems while downloading the definition updates, manually download them from here and just double-click on mbam-rules.exe to install.

On the Scanner tab:

• Make sure the "Perform Quick Scan" option is selected.
  
• Then click on the Scan button.
  
• If asked to select the drives to scan, leave all the drives selected and click on the Start Scan button.
  
• The scan will begin and "Scan in progress" will show at the top. It may take some time to complete so please be patient.
  
• When the scan is finished, a message box will say "The scan completed successfully. Click 'Show Results' to display all objects found".
  
• Click OK to close the message box and continue with the removal process.

Back at the main Scanner screen:

• Click on the Show Results button to see a list of any malware that was found.
  
• Make sure that everything is checked, and click Remove Selected.
  
• When removal is completed, a log report will open in Notepad.
  
• The log is automatically saved and can be viewed by clicking the Logs tab in MBAM.
  
• Copy and paste the contents of that report in your next reply. Be sure to post the complete log to include the top portion which shows MBAM's database version and your operating system.
  
• Exit MBAM when done.

Note: If MBAM encounters a file that is difficult to remove, you will be asked to reboot your computer so MBAM can proceed with the disinfection process. If asked to restart the computer, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware.