Rootkit activity detected, now what?

Discussion in 'Malware Help - MG (A Specialist Will Reply)' started by lpontius1, Jan 28, 2009.

  1. lpontius1

    lpontius1 Private E-2

    I was trying to improve the speed on this computer, because it was one of the slowest I've seen in quite awhile. Ran all the scans, and I'm attaching the logs. I do have a few questions/notes tho.

    I got a message box that said:
    Combofix has detected the presence of rootkit activity and needs to reboot the machine. Kindly note down on paper the name of each file. We may need it later.

    C:\Windows\system32\twex.exe
    Also, Combofix kept detecting that AVG was running even after I shut it down, and disabled the startup for it (I have since re-enabled it).

    I also noticed this startup program:
    C\Windows\system32\lnfdpnhoihma.exe
    I have no idea what this is, but i haven't seen it before this either.:confused

    Please let me know what to do next....Thanks a bunch in advance. :cool
     

    Attached Files:

  2. lpontius1

    lpontius1 Private E-2

    And my final log...
     

    Attached Files:

  3. TimW

    TimW MajorGeeks Administrator - Jedi Malware Expert Staff Member

    If you haven't already, please disable the Guest account in User accounts.

    Please disable all anti-virus and anti-spyware programs while we do the following (re-enable when you are finished):

    Run C:\MGtools\analyse.exe by double clicking on it (Note: if using Vista, don't double click, use right click and select Run As Administrator). This is really HijackThis (select Do a system scan only) and select the following lines but DO NOT CLICK FIX until you exit all browser sessions including the one you are reading in right now:
    After clicking Fix, exit HJT.

    Now Copy the bold text below to notepad. Save it as fixME.reg to your desktop. Be sure the "Save as" type is set to "all files" Once you have saved it double click it and allow it to merge with the registry.
    Now download The Avenger by Swandog469, and save it to your Desktop.

    * Extract avenger.exe from the Zip file and save it to your desktop
    * Run avenger.exe by double-clicking on it.
    * Do not change any check box options!!
    * Copy everything in the Quote box below, and paste it into the Input script here: part of the window:

    * Now click the Execute button.
    * Click Yes to the prompt to confirm you want to execute.
    * Click Yes to the Reboot now? question that will appear when Avenger finishes running.
    * Your PC should reboot, if not, reboot it yourself.
    * A log file from Avenger will be produced at C:\avenger.txt and it will popup for you to view when you login after reboot.

    Now run the C:\MGtools\GetLogs.bat file by double clicking on it. Then attach the new C:\MGlogs.zip file that will be created by running this and also attach the log from Avenger.
     
  4. lpontius1

    lpontius1 Private E-2

    Ran all your instructions w/ no issues. Let me know what to do next. Thanks!
     

    Attached Files:

  5. TimW

    TimW MajorGeeks Administrator - Jedi Malware Expert Staff Member

    Sweet.....If you are not having any other malware problems, it is time to do our final steps:

    1. We recommed you keep SUPERAntiSpyware and Malwarebytes Anti-Malware for scanning/removal of malware. Unless you purchase them, they provide no real time protection. They are useful as backup scanners. 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" /u
        • Notes: The space between the combofix" and the /u, it must be there.
        • This will uninstall ComboFix and also reset hidden files and folders settings back to Windows defaults.

      • Delete the C:\combofix folder from combofix (if it exists)

    3. Any other miscellaneous tools we may have had you install or download can be uninstalled and deleted.
    4. 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.
    5. Go to add/remove programs and uninstall HijackThis.
    6. You can delete the C:\MGtools folder and the C:\MGtools.exe file. You can also delete the C:\MGlogs.zip
    7. If you are running Vista, Windows XP or Windows ME, do the below:
      • Refer to the cleaning steps in the READ ME for your Window version and see the steps to Disable System Restore which will flush your Restore Points.
      • Then reboot and Enable System Restore to create a new clean Restore Point.

    8. After doing the above, you should work thru the below link:

     

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