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Removing Trojan GAC_32/64 in desktop.ini

Discussion in 'Malware Removal' started by gizmo11x, Jun 29, 2012.

  1. gizmo11x

    gizmo11x Private E-2

    Hello everybody,
    My first post and here I am asking for help :)
    Could you please assist with removing the above from my PC.
    I have attached the logs requested in the general instructions thread.
    thanks
     

    Attached Files:

  2. Kestrel13!

    Kestrel13! Super Malware Fighter - Major Dilemma Staff Member

    [​IMG] For 32-bit (x86) systems download Farbar Recovery Scan Tool and save it to a flash drive.
    For 64-bit (x64) systems download Farbar Recovery Scan Tool x64 and save it to a flash drive.

    Plug the flashdrive into the infected PC.

    Enter System Recovery Options.

    To enter System Recovery Options from the Advanced Boot Options:
    • Restart the computer.
    • As soon as the BIOS is loaded begin tapping the F8 key until Advanced Boot Options appears.
    • Use the arrow keys to select the Repair your computer menu item.
    • Choose your language settings, and then click Next.
    • Select the operating system you want to repair, and then click Next.
    • Select your user account and click Next.

    To enter System Recovery Options by using Windows installation disc:

    • Insert the installation disc.
    • Restart your computer.
    • If prompted, press any key to start Windows from the installation disc. If your computer is not configured to start from a CD or DVD, check your BIOS settings.
    • Click Repair your computer.
    • Choose your language settings, and then click Next.
    • Select the operating system you want to repair, and then click Next.
    • Select your user account an click Next.
    On the System Recovery Options menu you will get the following options:
    • Select Command Prompt
    • In the command window type in notepad and press Enter.
    • The notepad opens. Under File menu select Open.
    • Select "Computer" and find your flash drive letter and close the notepad.
    • In the command window type e:\frst.exe (for x64 bit version type e:\frst64) and press Enter
    • Note: Replace letter e with the drive letter of your flash drive.
    • The tool will start to run.
    • When the tool opens click Yes to disclaimer.
    • Press Scan button.
    • It will make a log (FRST.txt) on the flash drive. Please attach this log to your next reply. (How to attach)
     
  3. gizmo11x

    gizmo11x Private E-2

    thanks for the quick reply
    new log uploaded
     

    Attached Files:

  4. Kestrel13!

    Kestrel13! Super Malware Fighter - Major Dilemma Staff Member

    Java(TM) 6 Update 29 <--- uninstall outdated java.


    Reboot your machine and install the most current and up to date version of Java available here at the below link:

    Java Runtime 6



    NOTICE: This script was written specifically for this user, for use on that particular machine. Running this on another machine may cause damage to your operating system

    Attached is fixlist.txt
    • Save fixlist.txt to your flash drive.
    • You should now have both fixlist.txt and FRST64.exe on your flash drive.

    Now re-enter System Recovery Options.
    Run FRST64 and press the Fix button just once and wait.
    The tool will make a log on the flashdrive (Fixlog.txt).
    Please attach this to your next message. (How to attach)

    Now attempt to boot normally.


    Download and run OTM.

    Download OTM by Old Timer and save it to your Desktop.

    • Right-click OTM.exe And select " Run as administrator " to run it.
    • Paste the following code under the [​IMG] area. Do not include the word Code.

    Code:
    :Files
    C:\Windows\assembly\GAC_32\Desktop.ini
    c:\windows\assembly\gac_64\desktop.ini
    C:\Windows\system32\consrv.dll
    C:\Windows\8455191.exe
    C:\Windows\8455191.dat
    C:\Windows\system32\CE3.dll
    
    :Commands
    [emptytemp]
    [Reboot]
    • Return to OTM, right click in the Paste List of Files/Folders to Move window (under the yellow bar) and choose Paste.
    • Push the large [​IMG] button.
    • OTM may ask to reboot the machine. Please do so if asked.
    • Copy everything in the Results window (under the green bar), and paste it in your next reply.

    NOTE: If you are unable to copy/paste from this window (as will be the case if the machine was rebooted), open Notepad (Start->All Programs->Accessories->Notepad), click File->Open, in the File Name box enter *.log and press the Enter key, navigate to the C:\_OTM\MovedFiles folder, and open the newest .log file present, and attach the contents of that document back here in your next post.


    Run FRST again like you did the first time and attach the log.


    Now run the C:\MGtools\GetLogs.bat file by double clicking on it. (Right click and run as admin if using Vista or Windows7) Then attach the new C:\MGlogs.zip file that will be created by running this.

    Let me know of any problems you may have encountered with the above instructions and also let me know how things are running now!
     

    Attached Files:

  5. gizmo11x

    gizmo11x Private E-2

    done all the steps
    here are the logs (the fixlog from FRST, the results log from OTM, the FRST scan log and the MGlogs.zip)
    I will let you know shortly if the infection is gone.
    much appreciated
     
  6. gizmo11x

    gizmo11x Private E-2

    no luck :(
    it's still detected by Comodo and by Emisoft Anti Malware
    I don't see any symptoms but I am afraid for my passwords and various accounts
     
  7. Kestrel13!

    Kestrel13! Super Malware Fighter - Major Dilemma Staff Member

    Logs did not attach!
     
  8. gizmo11x

    gizmo11x Private E-2

    ...sorry
     

    Attached Files:

  9. Kestrel13!

    Kestrel13! Super Malware Fighter - Major Dilemma Staff Member

    NOTICE: This script was written specifically for this user, for use on that particular machine. Running this on another machine may cause damage to your operating system

    Attached is fixlist.txt
    • Save fixlist.txt to your flash drive.
    • You should now have both fixlist.txt and FRST64.exe on your flash drive.

    Now re-enter System Recovery Options.
    Run FRST64 and press the Fix button just once and wait.
    The tool will make a log on the flashdrive (Fixlog.txt).
    Please attach this to your next message. (How to attach)

    Now attempt to boot normally.



    Download Combofix to your desktop. Do not run it by double clicking! See below.



    Now we need to use ComboFix by sUBs

    • Make sure that combofix.exe that you downloaded while doing the READ & RUN ME is on your Desktop but Do not run it!
      • If it is not on your Desktop, the below will not work.
    • Also make sure you have shut down all protection software (antivirus, antispyware...etc) or they may get in the way of allowing ComboFix to run properly.
    • If ComboFix tells you it needs to update to a new version, make sure you allow it to update.
    • Open Notepad and copy/paste the text in the below quote box. Ensure you scroll down to select ALL the lines:
    Code:
    KILLALL::
    
    File::
    C:\Windows\System32\CE3.dll
    C:\Windows\304576.dat
    C:\Windows\304576.exe
    C:\Windows\assembly\GAC_32\Desktop.ini
    c:\windows\assembly\gac_64\desktop.ini
    • Save the above as CFscript.txt and make sure you save it to the same location (should be on your Desktop) as ComboFix.exe
    • At this point, you MUST EXIT ALL BROWSERS NOW before continuing!
    • You should have both the ComboFix.exe and CFScript.txt icons on your Desktop.
    • Now use your mouse to drag CFscript.txt on top of ComboFix.exe

      [​IMG]

    • Follow the prompts.
    • When it finishes, a log will be produced named c:\combofix.txt
    • I will ask for this log below

    Note:

    Do not mouseclick combofix's window while it is running. That may cause it to stall.

    If after running Combofix you discover none of your programs will open up, and you recieve the following error: "Illegal operation attempted on a registry key that has been marked for deletion". Then the answer is to REBOOT the machine, and all will be corrected.


    Now run the C:\MGtools\GetLogs.bat file by double clicking on it. (Right click and run as admin if using Vista or Windows7) Then attach the new C:\MGlogs.zip file that will be created by running this.
     

    Attached Files:

  10. gizmo11x

    gizmo11x Private E-2

    sorry for the late reply. I was away with work
    done. attaching logs...
    I think we succeeded as it wasn't detected in these past few minutes. will report back in a short while to confirm.

    did I see correctly that some windows updates were uninstalled by combofix, or did I misread something?
     

    Attached Files:

  11. Kestrel13!

    Kestrel13! Super Malware Fighter - Major Dilemma Staff Member

    Run FRST again like you did in post # 2 please and atach the log. Also describe how things are running. No, I don't think CF took out windows updates...
     
  12. gizmo11x

    gizmo11x Private E-2

    log attached
    everything looks good, working properly. it's not detected anymore :-D

    you guys, and especially you Kestrel13!, are the best :cool

    many thanks
     

    Attached Files:

  13. Kestrel13!

    Kestrel13! Super Malware Fighter - Major Dilemma Staff Member

    Thankyou! I am glad everything is running normally again. ;)

    If you are not having any other malware problems, it is time to do our final steps:
    1. We recommend you keep SUPERAntiSpyware and Malwarebytes Anti-Malware for scanning/removal of malware. Unless you purchase them, they provide no protection. They do not use any significant amount of resources ( except a little disk space ) until you run a scan.
    2. If we had you use ComboFix, uninstall ComboFix (This uninstall will only work as written if you installed ComboFix on your Desktop like we requested.)
      • Click START then RUN and enter the below into the run box and then click OK. Note the quotes are required
      • "%userprofile%\Desktop\combofix" /uninstall
        • Notes: The space between the combofix" and the /uninstall, it must be there.
        • This will uninstall ComboFix and also reset hidden files and folders settings back to Windows defaults.
    3. Go back to step 6 of the READ ME and renable your Disk Emulation software with Defogger if you had disabled it.
    4. Any other miscellaneous tools we may have had you install or download can be uninstalled and deleted.
    5. If we had you download any registry patches like fixme.reg or fixWLK.reg (or any others), you can delete these files now.
    6. If running Vista, it is time to make sure you have reenabled UAC by double clicking on the C:\MGtools\enableUAC.reg file and allowing it to be added to the registry.
    7. Go to add/remove programs and uninstall HijackThis.
    8. Goto the C:\MGtools folder and find the MGclean.bat file. Double click on this file to run this cleanup program that will remove files and folders
      related to MGtools and some other items from our cleaning procedures.
    9. If you are running Win 7, Vista, Windows XP or Windows ME, do the below:
      • Refer to the cleaning procedures pointed to by step 7 of the READ ME
        for your Window version and see the instructions to Disable System Restore which will flush your Restore Points.
      • Then reboot and Enable System Restore to create a new clean Restore Point.
    10. After doing the above, you should work thru the below link:
     

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