malware and rootkit infection

Discussion in 'Malware Help - MG (A Specialist Will Reply)' started by BigDatC, Sep 26, 2010.

  1. BigDatC

    BigDatC Private E-2

    Intermediate computer user and know how to follow instructions.
    This is my mother in laws computer, so not sure when anything started. she just said it was slow. The internet explorer icon was changed so clicking it created a shortcut on the desktop instead of opening it. Clicking MS Word would open Excel.
    I had AVAST on it a couple months back, but when I got it again, it was gone. deleted somehow. When I reloaded and did a boot scan, AVAST found and removed a win32 rootkit.gen rootkit. Now however, AVAST will not do a boot scan even though it is scheduled to do one.
    I did the READ ME FIRST and followed the steps.
    Malwarebytes found several files. So did SAS (sidestep). The Root Repeal crashed when I tried to save a txt file. The reporting of the crash to Microsoft contained the following:
    C:\DOCUME~1\MICHAE~1\LOCALS~1\Temp\WERd5f5.dir00\TZNPW.exe.mdmp
    C:\DOCUME~1\MICHAE~1\LOCALS~1\Temp\WERd5f5.dir00\appcompat.txt
    When I tried to run again, I got a pagefile error and not enough memory error, grinding the system to a halt. mgeeks eventually ran and logs attached.
    Think I may have win32/TrojanDownloader.AGent.HFIHOOI Trojan
     

    Attached Files:

  2. BigDatC

    BigDatC Private E-2

    mbam log attached
     

    Attached Files:

  3. Kestrel13!

    Kestrel13! Super Malware Fighter - Major Dilemma Staff Member

    If you did not deliberately set this proxy yourself then please include it in the HJT fix below:

    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 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.
    • 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::
    
    DirLook::
    c:\windows\system32\drivers
    Folder::
    c:\documents and settings\All Users\Application Data\Symantec
    c:\program files\Common Files\Symantec Shared
    c:\documents and settings\Michael Alpert\Application Data\Symantec
    Registry::
    [-HKEY_LOCAL_MACHINE\software\microsoft\security center\Monitoring\SymantecAntiVirus]
    [-HKEY_LOCAL_MACHINE\software\microsoft\security center\Monitoring\SymantecFirewall]
    [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\services]
    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\services]
    [-HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{65D886A2-7CA7-479B-BB95-14D1EFB7946A}]
    [-HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{AA58ED58-01DD-4d91-8333-CF10577473F7}]
    [-HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{AF69DE43-7D58-4638-B6FA-CE66B5AD205D}]
    [-HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{D70E6A20-7060-4829-B3D7-B6624A1DE7C6}]
    
    • 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.

    Also delete all files in the below bold folder except ones from the current date (Windows will not let you delete the files from the current day).

    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.

    What is this? C:\Player.exe
     
  4. BigDatC

    BigDatC Private E-2

    C:\MGtools\analyse.exe was not present. downloaded hijackThis.msi from MG and ran.

    Deleted this, because not intentionally created: R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = 127.0.0.1

    Was not able to disable all anti-virus - avast shields turned off, but the scanner AvastSvc.exe and AvastUI.exe kept running and I was not able to force closed.

    created and dragged CFscript.txt on top of ComboFix.exe after browsers closed. When ComboFix finished, it rebooted computer and a dos program ran after reboot - think this was ComboFix, but not sure.

    C:\MGtools\GetLogs.bat did not exist. Ran c:/mgtools.exe and attached the new C:\MGlogs.zip file.

    What is this? C:\Player.exe This was a screen saver program. It did not appear to be installed. I secure NSA 7 pass deleted the file with CCleaner.

    FYI, I notice that on startup, there is a windows installer pop-up with no indication of what is trying to install and only a cancel button. It comes up 9 or 10 times regardless if I push cancel or Alt-F4 or do nothing. Did not watch to see if this was continuing after doing the above.
     

    Attached Files:

  5. Kestrel13!

    Kestrel13! Super Malware Fighter - Major Dilemma Staff Member

    Bear with me, I will be back with a response ASAP. Currently requesting advice from colleague(s) thanks for your patience.
     
  6. BigDatC

    BigDatC Private E-2

    I SO appreciate your assistance. I look forward to your further direction.
    Thank you!
     
  7. Kestrel13!

    Kestrel13! Super Malware Fighter - Major Dilemma Staff Member

    You're very welcome. And I appreciate your patience whilst we wait a while. :)
     
  8. Kestrel13!

    Kestrel13! Super Malware Fighter - Major Dilemma Staff Member

    Okay, What I am going to do is have you run a fix, but it will not be done the way it was before hand. I will attach a fix for you which you can download and use. (At the bottom of this post, do the CF step first then the getlogs.bat)

    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.
    • 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.
    • make sure you save CFScript.txt to your desktop.
    • 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.

    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.
     

    Attached Files:

    Last edited: Oct 2, 2010
  9. BigDatC

    BigDatC Private E-2

    Done as directed. Sometime while I was waiting, the Windows Security/Microsoft Automatic Updater seemed to get "unstuck". It found and installed over 40 security upgrades. There is also a SECUrom program that showed up as a rootkit on one of the scans. www.securom.com/support_faq.asp This is for a Scrabble Game by Hasbro.
     

    Attached Files:

  10. Kestrel13!

    Kestrel13! Super Malware Fighter - Major Dilemma Staff Member

    Try again with another script with a slight alteration to it but following the same instructins as before.

    Then just attach the CF log.
     

    Attached Files:

  11. BigDatC

    BigDatC Private E-2

    done
     

    Attached Files:

  12. Kestrel13!

    Kestrel13! Super Malware Fighter - Major Dilemma Staff Member

    Bear with me some more as I further discuss what steps we take next.
     
  13. Kestrel13!

    Kestrel13! Super Malware Fighter - Major Dilemma Staff Member

    Okay, let me ask, at this point, are you really still experiencing any malware issues? Tell us how things are running, please. :)
     
  14. BigDatC

    BigDatC Private E-2

    I will set this back up at my mother in law's place and see how it goes.
    thanks for all your assistance.
     
  15. Kestrel13!

    Kestrel13! Super Malware Fighter - Major Dilemma Staff Member

    No problem. :)
     

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