Malwarebytes Update causes Massive false positives.

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    Malwarebytes Update causes Massive false positives.


    Posted: 15 Apr 2013
    A definition update for Malwarebytes causes Trojan.Donloader.ED false positive on a massive amount of files that it can disable your system. It was corrected with new update. It hit me this afternoon and sure glad I had a recent Macrium Refresh image.


    ***False positive Trojan.Downloader.ED*** - Malwarebytes Forum

    Jim
    Phone Man's Avatar Posted By: Phone Man
    15 Apr 2013



  1. Posts : 330
    Microsoft Windows 7 Professional 64-bit SP1
       #1

    So as long as I update as of now, this shouldn't be a problem then? If so I might had dodged a bullet as I was going to run a full scan when I went to bed
      My Computer


  2. Posts : 2,686
    Windows 8.1 Pro w/Media Center 64bit, Windows 7 HP 64bit
    Thread Starter
       #2

    bberkey1 said:
    So as long as I update as of now, this shouldn't be a problem then? If so I might had dodged a bullet as I was going to run a full scan when I went to bed
    Your lucky, I was online and my Pro version runs a flash scan after each update. The latest update fixed the problem so you should be fine.

    Jim
      My Computer


  3. Posts : 330
    Microsoft Windows 7 Professional 64-bit SP1
       #3

    Phone Man said:
    bberkey1 said:
    So as long as I update as of now, this shouldn't be a problem then? If so I might had dodged a bullet as I was going to run a full scan when I went to bed
    Your lucky, I was online and my Pro version runs a flash scan after each update. The latest update fixed the problem so you should be fine.

    Jim
    Thanks for the heads up Phone Man
      My Computer


  4. Posts : 1,568
    Windows 8.1.1 64bit
       #4

    I got hit pretty good with this yesterday.
    MBAM Pro went crazy all of a sudden, flashing warnings and quarantining files at a pace I never saw before.
    It disabled security scanners, start button and more.
    Managed to do a hard shutdown, restarting did nothing, could not start any programs at all, Win7 was DOA.
    Another shutdown, did a system restore point and went back to what appears to be normal so far.
    I disabled MBAM, then removed it with Revo, downloaded a new copy 3 hours later.
    All files in quarantine would not restore, so had to look in sys32 and other places to be sure they were there, very time consuming.
    After verifying everything, I deleted all from quarantine.

    This shows the chaos : http://forums.malwarebytes.org/index...ic=125127&st=0
      My Computer


  5. Posts : 35
    Windows 7 Ultimate 64bit SP-1
       #5

    Wow, I was going to download and run MBAM yesterday on a different system but got distracted- sure am glad I didn't!
      My Computer


  6. Posts : 19,383
    Windows 10 Pro x64 ; Xubuntu x64
       #6

    Yikes! It looks like chaos......but strangely, I had no issues at all
      My Computer


  7. Posts : 18,415
    windows 7 home 64bit
       #7

    No bother here either working fine On my Windows 8 system
      My Computer


  8. Posts : 1,568
    Windows 8.1.1 64bit
       #8

    Golden said:
    Yikes! It looks like chaos......but strangely, I had no issues at all
    Your very lucky.
    There was one person who knew he would be going to face a mountain of disasters this morning as he had 600 machines which he believed were damaged by this. IT person I'm guessing.
    Others were threatening law suits, some wanted monetary compensation.
    I'm guessing today is a very busy day for a lot of people around the world.
      My Computer


  9. Posts : 19,383
    Windows 10 Pro x64 ; Xubuntu x64
       #9

    The Enterprise version just knocked all the computers connected to this product out. Thank god were only evaluating it on a couple computers. Forefront may suck, but at least its not taking our systems out.
    ^ Off the Malwarebytes forum......they are going to have to work hard to regain some credibility it would appear. In the meantime, I'm taking the safe option and turning OFF automatic quarantining:

    Malwarebytes Update causes Massive false positives.-capture.png

    If your system is completely hosed as some are reporting, then this is apparently the fix:

    http://forums.malwarebytes.org/index...owtopic=125137
      My Computer


 
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