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Windows Defender Fake Trojan (Back-door)

Discussion in 'Virus & Other Malware Removal' started by manganime, Oct 22, 2009.

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  1. manganime

    manganime Thread Starter

    Aug 8, 2003
    Hi all,

    Back with another problem. I am using Vista OS.

    Today I got infected by a highly annoying fake trojan which disguised itself as Windows Defender and kept popping up with fake alerts in an urge for me to purchase the full version of their software. It also created its own shortcut on my desktop and I could see two of its icons sitting in my programs startup menu and when I right clicked on the I could see they were situated in ...C:\Users\(my computer name)\Appdata\Local\Temp\snexracwmo.exe

    Well my AVG kept popping up with warnings also and I removed numerous files and spyware and I ran a full scan on my main drive (1 file refused to be removed), I also removed 2 bad reg entry with Malwarebytes. After this the shortcut and the icons remained, so did the annoying fake alerts.

    As a last resort I ran a system restore (which supposedly failed) but after my laptop rebooted the shortcut and the files in my startup menu were gone and I left it on for a while running Spybot and I didnt get any of the fake alerts. I also had a quick look at my registry and didnt find anything which looked suspicious.

    After an attack by this trojan I would like to ensure it is fully wiped off and no more remains, can anybody suggest how I can do this?

    Thank You very much
  2. sjpritch25


    Sep 8, 2005
    Welcome to TSG :)

    [​IMG] Please download Malwarebytes' Anti-Malware from Here.

    Double Click mbam-setup.exe to install the application.
    • Make sure a checkmark is placed next to Update Malwarebytes' Anti-Malware and Launch Malwarebytes' Anti-Malware, then click Finish.
    • If an update is found, it will download and install the latest version.
    • Once the program has loaded, select "Perform Quick Scan", then click Scan.
    • The scan may take some time to finish,so please be patient.
    • When the scan is complete, click OK, then Show Results to view the results.
    • Make sure that everything is checked, and click Remove Selected.
    • When disinfection is completed, a log will open in Notepad and you may be prompted to Restart.(See Extra Note)
    • The log is automatically saved by MBAM and can be viewed by clicking the Logs tab in MBAM.
    • Copy&Paste the entire report in your next reply.

    Extra Note:

    If MBAM encounters a file that is difficult to remove,you will be presented with 1 of 2 prompts,click OK to either and let MBAM proceed with the disinfection process. If asked to restart the computer, please do so immediatly.
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