MBR Infection

Discussion in 'Malware Help (A Specialist Will Reply)' started by mancow2000, Jun 14, 2010.

  1. mancow2000

    mancow2000 Private E-2

    It seems that I got an infection when my relatives were here. I went through the removal guide after my regular products did not work. I have noticed after going through the guide that my school work located on my G drive has disappeared. I think that ComboFix may have done it while it was createing restore points. Is there any way to restore it?

    Here are the logs:

    For some reason it seems the logs for Malware Bytes and SAS are missing. Let me know if I need to rerun them and post the new logs.
     

    Attached Files:

  2. TimW

    TimW MajorGeeks Administrator - Jedi Malware Expert Staff Member

    I am not seeing any indication that Combo removed anything related to your G:\ drive. Have you tried doing a system restore to before this all occurred?
     
  3. mancow2000

    mancow2000 Private E-2

    I just know that I saved my recent work to the folder last night and after running combofix, RootRepeal and MGtools, my work was gone. I had run Malware Bytes and SAS last night before I went to bed. I noticed that ComboFix installed the recovery console so guessed that at that point it might have changed something.

    Thank you for any help you are able to give.
     
  4. TimW

    TimW MajorGeeks Administrator - Jedi Malware Expert Staff Member

    Please download HelpAsst_mebroot_fix.exe and save it to your desktop.
    Close out all other open programs and windows.
    Double click the file to run it and follow any prompts.
    If the tool detects an mbr infection, please allow it to run mbr -f and shutdown your computer.
    Upon restarting, please wait about 5 minutes, click Start>Run and type the following bolded command, then hit Enter.

    helpasst -mbrt

    Make sure you leave a space between helpasst and -mbrt !
    When it completes, a log will open.
    Please post the contents of that log.


    *In the event the tool does not detect an mbr infection and completes, click Start>Run and type the following bolded command, then hit Enter.

    mbr -f

    Now, please do the Start>Run>mbr -f command a second time.
    Now shut down the computer (do not restart, but shut it down), wait a few minutes then start it back up.
    Give it about 5 minutes, then click Start>Run and type the following bolded command, then hit Enter.

    helpasst -mbrt

    Make sure you leave a space between helpasst and -mbrt !
    When it completes, a log will open.
    Please post the contents of that log.

    No matter what happens with the above, attach the above logs and then immediately continue with the below in normal boot mode!

    Now run the C:\MGtools\GetLogs.bat file by double clicking on it (Note: if using Vista, don't double click, use right click and select Run As Administrator).

    Then attach the below logs:

    * C:\MGlogs.zip
     
  5. mancow2000

    mancow2000 Private E-2

    Ok. Here are the logs you requested.
     

    Attached Files:

  6. TimW

    TimW MajorGeeks Administrator - Jedi Malware Expert Staff Member

    Looks good. Let's just clean up a few things and then you can do the final cleanup.

    First, let me suggest that you uninstall ThreatFire as it is relatively useless and full of FP's.

    Now, 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 just the bold text below to notepad (Do not include any space above the word REGEDIT). 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.
    Make sure that you tell me if you receive a success message about adding the above
    to the registry. If you do not get a success message, it definitely did not work.


    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 real time 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:

     
  7. mancow2000

    mancow2000 Private E-2

    I got a message that this was successful. I uninstalled ThreatFire, but wonder why it is a recommened freeware pick on the main website if it is useless. I was able to uninstall everything else that I am not going to use in the future. Thank you for helping me with this issue. I am usually pretty good and fixing things like this but this one got me.:-o Thanks again! ;)
     
    Last edited: Jun 15, 2010
  8. TimW

    TimW MajorGeeks Administrator - Jedi Malware Expert Staff Member

    From the How to Protect Youself thread:

    • PC Tools Firewall Plus <-- make sure you uncheck the options to install Google Toolbar and Threatfire free edition. There's is no sense in installing excess baggage.
    Good to know you are working. And you are most welcome. :)
     

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