Is Laptop still infected?

Discussion in 'Malware Help (A Specialist Will Reply)' started by 20questions, May 12, 2012.

  1. 20questions

    20questions Private E-2

    Hi,

    I inherited this laptop from a friend and virus scans found some malware (JS/Downloader.Agent, iMesh and some other stuff I can't remember). I've cleaned it up but just want to make sure the cleaning worked and there's nothing else lurking.

    Continuing symptoms are: The hard drive runs all the time and memory usage is really high and the computer clock won't keep time (though this is probably the battery because it sat uncharged for about a year).

    Anyway, I've run all the scans recommended under the 'Read and Run This' sticky. These are pasted below. The rootrepeal scan didn't work though. I received the message: Warning. Unrecognized partition type 6 (6x0)! It also wouldn't let me generate a report- the same message came up when I tried.

    Thanks in advance!
     

    Attached Files:

  2. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Welcome to Major Geeks!
    This may be happening because you really do not have enough memory to properly run Vista and you may be caching lots of things to hard disk. Your log showsInstalled
    Code:
    Installed Physical Memory (RAM) 1.00 GB 
    Total Physical Memory 0.99 GB 
    Available Physical Memory 180 MB 
    I recommend three times the 1 GB you have. In addition, things you are running may be contributing to this. The below has been known to be a problem
    It does not look like you are having malware problems but let's run a couple more scans to be sure.


    Goto the below link and follow the instructions for running TDSSKiller from Kaspersky
    • Be sure to attach your log from TDSSKiller
    Now please also download MBRCheck to your desktop.

    See the download links under this icon http://forums.majorgeeks.com/chaslang/images/MGDownloadLoc.gif
    • Double click MBRCheck.exe to run (vista and Win 7 right click and select Run as Administrator)
    • It will show a Black screen with some information that will contain either the below line if no problem is found:
      • Done! Press ENTER to exit...
    • Or you will see more information like below if a problem is found:
      • Found non-standard or infected MBR.
      • Enter 'Y' and hit ENTER for more options, or 'N' to exit:
    • Either way, just choose to exit the program at this point since we want to see only the scan results to begin with.
    • MBRCheck will create a log named similar to MBRCheck_07.16.10_00.32.33.txt which is random based on date and time.
    • Attach this log to your next message. (See: HOW TO: Attach Items To Your Post )
     
  3. 20questions

    20questions Private E-2

    Hi,

    Thanks so much for your help. You guys are brilliant! :dood

    The new scans are attached below


    Yeah, I'd been trying to manage a lot of this stuff through msonfig custom startup til I read I shouldn't be doing that! I'll have to figure out how to disable them some other way!

    Thanks again. :)
     

    Attached Files:

  4. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    There were instructions in step 4 of the READ & RUN ME. The below was given


    You MBRcheck log shows the belowpossible problem.
    Code:
          Size  Device Name          MBR Status
      --------------------------------------------
         74 GB  [URL="file://\\.\PhysicalDrive0"]\\.\PhysicalDrive0[/URL]   Unknown MBR code
                SHA1: 75374D27B77E61C9316E27BACDEE41C1E2C9874E
    Do you have your Windows Vista Boot DVD?
     
  5. 20questions

    20questions Private E-2

    No, I don't have a Boot DVD unfortunately. I'll ask my friend (original owner) if she has it/knows where it is though and get back to you.

    Yeah, I'm going to study that more closely to figure out how to disable some of these things. I have spybot so can hopefully use that as long as it doesn't conflict with AVG anti virus? (a lot of the items like bt broadband desktop don't have an option for auto startup so I'll have to manage them otherwise)

    Thanks again!!
     
  6. 20questions

    20questions Private E-2

    I asked my friend about the boot dvd and she doesn't know where it is, if she ever had one- so that's a dead end :( . Let me know what/if anything I should do next. Thanks as always!
     
  7. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Well we will try some simple steps without the boot DVD and see if we can fix the MBR. Sometime we get lucky. But many times we do not. Let's start with the below.


    Please download aswMBR ( 511KB ) to your desktop.
    • Double click the aswMBR.exe icon to run it
    • Click the Scan button to start the scan
    • On completion of the scan, click the save log button, save it to your desktop and post this log right now before continuing on with below.

    Exit aswMBR and then Re-Run aswMBR
    • Click Scan
    • On completion of the scan, click the FIXMBR button
    • There is a slight pause after clicking the 'Fix' button.
    • Wait for the tool to report 'Infection fixed successfully', now reboot the machine.
    • Rebooting the machine prematurely, before seeing this line will result in an incomplete fix.
      Note: After the 'Infection fixed successfully' message appears, the machine may became unresponsive. You may have to do a hard boot of your machine. That may be a side effect from the fix. All will be well after the reboot.
    • Save the log as before and post in your next reply.

    Now rerun MBRcheck and attach a new log from it too.
     
  8. 20questions

    20questions Private E-2

    Ok, here's the pre-fix aswMBR scan log.
     

    Attached Files:

  9. 20questions

    20questions Private E-2

    And here's the log after fixing the mbr and the log after rebooting and rescanning.
     

    Attached Files:

  10. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Looking better but I wanted you to do the below at the end of my last instructions
    So please run it and attach the new log.
     
  11. 20questions

    20questions Private E-2


    Woops, wasn't reading carefully!

    Here's the Mbrcheck log
     

    Attached Files:

  12. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Okay this still shows an unknown MBR. If you are not having any malware problems, we will ignore this. So are you having any malware problems?

    If you are having malware problems, this is the only thing I see to possibly be a problem and you will need a bootable CD/DVD to do this. Can you borrow a real Vista boot DVD from a friend just to repair the MBR?
     
  13. 20questions

    20questions Private E-2

    Hi, the only problems I'm having now are high memory usage and that the hard drive is always running, but thisisu thought that was likely due to insufficient memory. So no more malware problems unless you think that's related to the MBR? I'm happy to ignore it if you don't think it's a problem.

    Just in case, I'm asking around about borrowing a Vista boot dvd but no one has one so far- just to clarify, is it something different than a Vista installation cd? If it's an installation cd, would it have to be for the same vista edition as this computer - vista home premium or could it be for vista home basic- I might be able to get one of those.

    Thanks again- all your time has been REALLY appreciated.
     
  14. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Um.... See my first reply to you in message #2.

    You need a Vista boot DVD to fix it anyway and there is no guarantee that it has anything to do with your problem.


    If it is a full reinstall DVD not an upgrade disc then it may be a bootable disc. You would have to test it.

    Any Vista DVD that is bootable should be able to be used to repair the MBR.
     
    Last edited: May 18, 2012
  15. 20questions

    20questions Private E-2

     
  16. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    See what was posted in message # 12 of the below thread and see if you can get this CD to run.

    whistler/black internet@mbr again!


    This is for an older version of Hiren's CD but I would think the menus are still the same. Hopefully the problem is really with your MBR and this fixes it.
     
  17. 20questions

    20questions Private E-2

    Thanks chaslang! Burned the CD and was able to boot the laptop from it fine. I didn't fix the mbr yet with it- do you want me to follow the instructions from the other thread and replace the mbr with the standard code?
     
  18. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Yes.
     
  19. 20questions

    20questions Private E-2

    Ok, ran the boot cd and installed the standard mbr code. The new Mbrcheck log is attached- it finds an XP mbr code now, hopefully that's okay?
     

    Attached Files:

  20. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    That's okay. It is better than what you had.

    Has it changed any behavior on your PC now?
     
  21. 20questions

    20questions Private E-2

    Well, the memory usage is actually much better now (dropped from plus 80% to 65%) and it is quite a bit faster, so yay. The hard drive is still running all the time though, same as always...so, sounds like I'll need to install more memory probably huh?
     
  22. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Yes! Even if it does not completely solve your problem, you need more memory anyway. Vista cannot run efficiently with so little memory.

    Let's do one more scan before final instructions.

    Now run the C:\MGtools\GetLogs.bat file by double clicking on it (Note: if using Vista or Win7, don't double click, use right click and select Run As Administrator).

    Then attach the below logs:
    • C:\MGlogs.zip
     
  23. 20questions

    20questions Private E-2

    ok, new mgtools logs attached.
     

    Attached Files:

  24. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    According to your logs, you have two antivirus programs installed:
    O4 - HKLM\..\Run: [Ad-Aware Antivirus] "C:\Program Files\Ad-Aware Antivirus\AdAwareLauncher" --windows-run
    O4 - HKLM\..\Run: [AVG_TRAY] "C:\Program Files\AVG\AVG2012\avgtray.exe"

    You need to uninstall one immediately and since Ad-Aware is basically ineffective, I would uninstall it.

    And inline with your performance issues, I suggest that you stop loading the below unnecessary stuff at startup. This is not malware, it is just a waste of system resources and you cannot afford this:

    O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Common Files\Java\Java Update\jusched.exe"
    O4 - HKLM\..\Run: [WarReg_PopUp] C:\Acer\WR_PopUp\WarReg_PopUp.exe
    O4 - HKLM\..\Run: [btbb_wcm_McciTrayApp] "C:\Program Files\BT Broadband Desktop Help\btbb_wcm\McciTrayApp.exe"
    O4 - HKLM\..\Run: [btbb_McciTrayApp] "C:\Program Files\BT Broadband Desktop Help\btbb\BTHelpNotifier.exe"
    O4 - HKLM\..\Run: [BigDogPath] C:\Windows\VM_STI.EXE Philips SPC 200NC PC Camera
    O4 - HKCU\..\Run: [WMPNSCFG] C:\Program Files\Windows Media Player\WMPNSCFG.exe
    O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
    O4 - HKUS\S-1-5-21-3728307304-2593972912-1515391872-1002\..\Run: [Sidebar] C:\Program Files\Windows Sidebar\sidebar.exe /autoRun (User 'Luke')
    O4 - HKUS\S-1-5-21-3728307304-2593972912-1515391872-1002\..\Run: [msnmsgr] "C:\Program Files\Windows Live\Messenger\msnmsgr.exe" /background (User 'Luke')
    O4 - HKUS\S-1-5-21-3728307304-2593972912-1515391872-1002\..\Run: [WMPNSCFG] C:\Program Files\Windows Media Player\WMPNSCFG.exe (User 'Luke')
    O4 - HKUS\S-1-5-21-3728307304-2593972912-1515391872-1002\..\Run: [swg] "C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe" (User 'Luke')
    O4 - HKUS\S-1-5-18\..\Run: [msnmsgr] "C:\Program Files\Windows Live\Messenger\msnmsgr.exe" /background (User 'SYSTEM')
    O4 - HKUS\.DEFAULT\..\Run: [msnmsgr] "C:\Program Files\Windows Live\Messenger\msnmsgr.exe" /background (User 'Default user')
     
  25. 20questions

    20questions Private E-2

    Hmm, I uninstalled adaware weeks ago... . Sounds like it didn't uninstall fully?

    Should I delete these entries on hijackthis or just use avg/spybot to manage startup items?

    Also, thanks again chaslang, really appreciate all your help :)
     
  26. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    I suggest that you use this >> Autoruns which is better for controlling more startups and services. You can easily test disallowing and reallowing things to run if you find you need them.

    Since you are do not appear to be having any more 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 oof 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 or Win 7, 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:
     
  27. 20questions

    20questions Private E-2

    Chaslang, thanks. Have got the autoruns programme up and running and everything seems to be working well. Appreciate your help and once again thanks for persevering with my malware worries!
     

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