Unable to remove Malware/Trojan infection

Discussion in 'Malware Help - MG (A Specialist Will Reply)' started by RedBull1419ag, Jun 14, 2011.

  1. RedBull1419ag

    RedBull1419ag Private E-2

    Hello,

    Recently while surfing the following site

    http://reddead.wikia.com

    I encountered a pop-up installer asking me to run the installer. I closed the installer window by clicking cancel. Shortly after that my Firefox browser crashed and the system became unstable. I attempted to restart the machine, but it remained frozen for the next 5-10 minutes. I was forced to hold down the power button.

    Upon restart I attempted to test the browser by going to google.com the page loaded, but another page loaded with advertisements.

    I ran Malwarebytes to check for an infection. I attempted to use Malwarebytes first to remove the infection, but was unsuccessful.

    When the infection occurred my Java version was Update 22 and my FireFox version was 4.0.1

    I removed my current version of Java and installed the newest. I installed SAS and MB and updated to the latest definitions.

    So...I ran through the Read/Run Me and will attach logs.


    SAS and Malwarebytes both detected infections and required reboots. ComboFIX detected a RootKit and had to restart.

    A blue screen appeared twice during the removal process with the following error:

    INVALID_WORK_QUEUE_ITEM
    STOP 0x00000096
    (0xF78DED1C, 0x80562340, 0x80562340, 0x89B6A6BA)

    After completing the removal process documented in Read/Run Me I restarted the machine and within 10-15 minutes I received another installer window and shortly after that a fake AV program appeared.

    Please review logs and advise. Thanks you for your time in advance. (MGTools log included in second post)
     

    Attached Files:

  2. RedBull1419ag

    RedBull1419ag Private E-2

    MGTools log uploaded.
     

    Attached Files:

  3. dr.moriarty

    dr.moriarty Malware Super Sleuth Staff Member

    Hello, RedBull1419ag

    I am reviewing your logs and will get back to you with instructions as needed. Please be patient as the logs are alot of information to go over.
     
  4. RedBull1419ag

    RedBull1419ag Private E-2

    Hello dr.moriarty,

    My main concern is that it looks as though I may have been infected by a rootkit, though I do not know to what extent or type.

    A reinstallation of the OS is something that I'm willing and able to do if required.

    Thanks again for your assistance.

    *P.S. - On a side note I have disconnected internet connection to the infected computer in hopes of preventing further installation of Malware or infections*
     
  5. dr.moriarty

    dr.moriarty Malware Super Sleuth Staff Member

    Hello, RedBull1419ag

    Your Malwarebytes' version is outdated. Please "Open" the program > click on the "Update" tab > click on "Check for Updates". Afterwards, please perform a "quick scan" and attach the new log to your next reply.

    **Giving all users Administrator's accounts is bound to lead to problems.

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

    Step 1: If you did not set the following proxy, fix it with this step.
    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.

    Step 2:
    *Included below are some left-over services from PCTools which is no longer installed.
    Now we need to use ComboFix.
    • 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.
    • Make sure you have shut down all protection software (antivirus, antispyware, firewall...etc) programs so they do not interfere with the running of ComboFix. *Remember to re-start them before coming back online.
    • 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 inside of the below code box into it (make sure you scroll all the way down in the code box to get all lines selected ):
    • 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.
      If it asks you to overide the previous file with the same name, click YES.
    • Now use your mouse to drag CFscript.txt on top of ComboFix.exe
      http://img.photobucket.com/albums/v666/sUBs/CFScriptB-4.gif
    • Follow the prompts.
    • When it finishes, a log will be produced named c:\combofix.txt
    Note:
    Do not mouseclick combofix's window while it is running. That may cause it to stall.


    Step 3:
    Open CCleaner - select "Cleaner" > "Run Cleaner" <---use this function ONLY!

    Let's see what another tool reveals:
    Step 4:
    Now download SysProt AntiRootkit

    This is a ZIP file so unzip onto your Desktop which should create a SysProt folder on your Desktop.
    • Open the SysProt folder by double clicking it
    • Double click Sysprot.exe to start the program.
    • Click on the Log tab.
    • In the Write to log box, make sure to select and unselect the following items.
      • Process << Selected
      • Kernel Modules << Selected
      • SSDT << Selected
      • Kernel Hooks << Selected
      • IRP Hooks << NOT Selected
      • Ports << NOT Selected
      • Hidden Files << Selected
    • At the bottom of the page
      • Hidden Objects Only << Selected
    • Click on the Create Log button on the bottom right.
    • After a few seconds a new window should appear.
    • Select Scan Root Drive. Click on the Start button.
    • When it is complete a new window will appear to indicate that the scan is finished.
    • The log will be saved automatically in the same folder Sysprot.exe was extracted to. Attach the SysProtLog.txt log file to your next message.

    Step 5:
    Then run the C:\MGtools\GetLogs.bat file by double clicking on it (Note: if using Vista or Windows 7, use right click and select Run As Administrator).

    Please attach the below logs to your next reply:
    • C:\MGlogs.zip
    • updated MBAMlog.txt
    • SysProtLog.txt

    * Make sure you tell me if you had any problems running this procedure; and answer this - "What malware problems are you still experiencing?"

    dr.m
     
  6. RedBull1419ag

    RedBull1419ag Private E-2

    Updated Malwarebytes, scanned and saved new log.

    Used the CFscript.txt with ComboFix to remove listed services from PCTools.

    Ran CCleaner and selected the option to clean.

    Regarding Step 4:

    Prior to reading you post I ran scans with TDSSKiller and GMER both of which located a rootkit/bootkit TDSS-TDL4.

    I removed the kit using TDSSKiller and will attach the logs ran from both programs.

    I proceeded with installing and running SysProt AntiRootkit.

    Gathered new logs from MGTools.
     

    Attached Files:

  7. RedBull1419ag

    RedBull1419ag Private E-2

    Attaching additional logs from TDSSKiller and GMER. Including another updated ComboFIX log just in case.
     

    Attached Files:

  8. dr.moriarty

    dr.moriarty Malware Super Sleuth Staff Member

    RedBull1419ag

    You need to run MSconfig and reset your machine into "Normal Startup Mode", and no longer use it to control your startups. Because of your use - you have a remnant of AVG9 trapped.
    See: Dealing with Startup Processes

    After resetting MSconfig, you need to run the AVG Remover (32bit) version from the site given below:
    http://www.avg.com/us-en/utilities

    Now open CCleaner - select "Cleaner" > "Run Cleaner" <---use this function ONLY! Then reboot your pc.

    * 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 re-enable 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 re-enabled 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 through the below link:
    Safe surfing! http://i268.photobucket.com/albums/jj5/drmoriarty/Emoticons/char145.gif
     
  9. RedBull1419ag

    RedBull1419ag Private E-2

    Thanks for the information regarding MSCONFIG.

    I've completed the steps in the clean up process and all appears to be okay so far.

    Do you have any technical information regarding TDSS-TDL4 that you would recommend reading through? (I've read most of the articles from Kaspersky including those at securelist.com)

    Do you believe that a machine comprised by a ROOTKIT/BOOTKIT can ever be fully trusted again for use sensitive data such as online banking etc?

    In this position would you have preformed a re-installation of the entire OS if it were your computer?

    Thanks for the assistance once again and your response to my above questions in advance.
     
  10. dr.moriarty

    dr.moriarty Malware Super Sleuth Staff Member

    You're welcome!

    It is my opinion that the type of infection you had does not warrant re-installing your operating system, I personally wouldn't.
    Safe surfing,
    dr.m
     

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