Help! Windows boots to 'Startup Repair' after malware removal

Discussion in 'Malware Help (A Specialist Will Reply)' started by 2stick, Aug 28, 2012.

  1. 2stick

    2stick Private E-2

    Around a week ago my neighbor gave me her laptop because it was running extremely slow. I assumed she was infested with spyware/trojans/viruses so I installed Malwarebytes Anti-Malware, Spybot Search & Destroy, and AVG Free 2012. After installing, I updated the definitions for all of the programs and then booted into safe mode. After running scans for MBAM and S&D, I was told to reboot to finish the cleaning process. However after rebooting, it never makes it to Windows. It gets to the green progress bar, then reboots, then boots to 'Startup Repair'. From here, the automatic repair fails. I've run a command prompt from here and used bootrec.exe to run /fixboot and /fixmbr to no avail. Can anyone help me? The computer is running Windows Vista x64. Thanks!
     
  2. thisisu

    thisisu Malware Consultant

    Welcome to MajorGeeks, 2stick

    http://img827.imageshack.us/img827/1263/frst.gif Please download Farbar Recovery Scan Tool and save it to a flash drive.

    Plug the flashdrive into the infected PC.

    Enter System Recovery Options.

    To enter System Recovery Options from the Advanced Boot Options:
    • Restart the computer.
    • As soon as the BIOS is loaded begin tapping the F8 key until Advanced Boot Options appears.
    • Use the arrow keys to select the Repair your computer menu item.
    • Choose your language settings, and then click Next.
    • Select the operating system you want to repair, and then click Next.
    • Select your user account and click Next.

    To enter System Recovery Options by using Windows installation disc:

    • Insert the installation disc.
    • Restart your computer.
    • If prompted, press any key to start Windows from the installation disc. If your computer is not configured to start from a CD or DVD, check your BIOS settings.
    • Click Repair your computer.
    • Choose your language settings, and then click Next.
    • Select the operating system you want to repair, and then click Next.
    • Select your user account an click Next.
    On the System Recovery Options menu you will get the following options:
    • Select Command Prompt
    • In the command window type in notepad and press Enter.
    • The notepad opens. Under File menu select Open.
    • Select "Computer" and find your flash drive letter and close the notepad.
    • In the command window type e:\frst.exe (for x64 bit version type e:\frst64) and press Enter
    • Note: Replace letter e with the drive letter of your flash drive.
    • The tool will start to run.
    • When the tool opens click Yes to disclaimer.
    • Press Scan button.
    • It will make a log (FRST.txt) on the flash drive. Please attach this log to your next reply. (How to attach)
     
  3. 2stick

    2stick Private E-2

    Thanks for the reply. I ran the scan and have attached the log to this post.

    I didn't mention this in my original post because I didn't realize it, but the computer can successfully boot to safe mode, just not "normal" mode. Pretty weird. :confused

    Anyway, have a look at the log and let me know whats wrong. Thanks!
     

    Attached Files:

  4. thisisu

    thisisu Malware Consultant

    The computer is infected with an older variant of ZerAccess / Sirefef.

    NOTICE: This script was written specifically for this user, for use on that particular machine. Running this on another machine may cause damage to your operating system

    Attached is fixlist.txt
    • Save fixlist.txt to your flash drive.
    • You should now have both fixlist.txt and FRST64.exe on your flash drive.

    Now re-enter System Recovery Options.
    Run FRST64 and press the Fix button just once and wait.
    The tool will make a log on the flashdrive (Fixlog.txt).
    Please attach this to your next message. (How to attach)

    Now attempt to boot normally.
     

    Attached Files:

  5. 2stick

    2stick Private E-2

    Here goes the fix log.
     

    Attached Files:

  6. thisisu

    thisisu Malware Consultant

    Looks good. Have you tried booting into Normal Mode yet? Let me know what happens.
     

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