TechSpot

Win32/Sirefef.FB.Gen trojan

Inactive
By StueyCIDE
Sep 17, 2012
  1. Hi guys, I just want to introduce myself, I'm Stu and I've just joined this forum because it seems to be the best and most helpful forum for people who aren't massively technical. I know my way around a computer but I'm not hugely skilled.
    Okay so for my problem. I'm currently using my girlfriend's family PC and her mother knows nothing about PCs and it seems she managed to download something containing the virus mentioned in the Thread Title. The PC is essential to them for college work and other things. I know there have been solutions on this forum before because I've read through them but then read the thread saying not to follow those instructions as they are machine specific. If anybody can help I would be eternally grateful.
    Bit of technical info:
    • They are running Windows Vista Home Premium 32bit Service Pack 2.
    • They were running Avast but it was doing nothing to help. So I installed ESET Smart Security 5 and I've had remarkable results before with this software. However, this is not helping either.
    If you need to know anything else. Just say.

    Thank you in advance.
     
  2. Broni

    Broni Malware Annihilator Posts: 47,719   +268

    Welcome aboard [​IMG]

    Please, observe following rules:
    • Read all of my instructions very carefully. Your mistakes during cleaning process may have very serious consequences, like unbootable computer.
    • If you're stuck, or you're not sure about certain step, always ask before doing anything else.
    • Please refrain from running any tools, fixes or applying any changes to your computer other than those I suggest.
    • Never run more than one scan at a time.
    • Keep updating me regarding your computer behavior, good, or bad.
    • The cleaning process, once started, has to be completed. Even if your computer appears to act better, it may still be infected. Once the computer is totally clean, I'll certainly let you know.
    • If you leave the topic without explanation in the middle of a cleaning process, you may not be eligible to receive any more help in malware removal forum.
    • I close my topics if you have not replied in 5 days. If you need more time, simply let me know. If I closed your topic and you need it to be reopened, simply PM me.

    =====================================

    For x32 (x86) bit systems download Farbar Recovery Scan Tool 32-Bit and save it to a flash drive.
    For x64 bit systems download Farbar Recovery Scan Tool 64-Bit 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.
    • Select US as the keyboard 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.

    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.
    • Select US as the keyboard 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.

    On the System Recovery Options menu you will get the following options:

      • Startup Repair
        System Restore
        Windows Complete PC Restore
        Windows Memory Diagnostic Tool
        Command Prompt
    • 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 (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 copy and paste it to your reply.

    Next...

    Re-run FRST again.
    Type the following in the edit box after "Search:".

    services.exe

    Click Search button and post the log (Search.txt) it makes in your reply.

    I'll expect two logs:
    - FRST.txt
    - Search.txt
     
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