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  1.    07 Sep 2015 #1
    Join Date : Sep 2015
    Posts : 4
    Windows 10

    Possible Malware that Malwarebytes hasn't picked up?


    Hey,

    I recently installed a new SSD and did a clean install of Windows 10 onto it.

    I've had Windows Defender and Malwarebytes on the machine, and roughly used about 94/232 available GB on my drive.

    All of a sudden, I get a notification saying my SSD is full - which obviously I've not done. So I reboot, it then says I have 23 GB free. I double check with WinDirStat and I'm only using around 94 GB. So I try scanning with Defender and Malwarebytes, but Malwarebytes is crashing. So I reboot to safe mode, uninstall it, reinstall, and try again. Both scanned fine, but didn't pick anything up.

    I hadn't installed any new software or downloaded any new files recently. In fact, I just came back from a vacation and was only playing a Steam game.

    Any help?
      My ComputerSystem Spec
  2.    07 Sep 2015 #2
    Join Date : Jul 2015
    Posts : 903
    Windows 10 Home x64

    Why are you assuming you have catched some malware? I would start by doing a chkdsk /f on that drive.
      My ComputerSystem Spec
  3.    10 Sep 2015 #3
    Join Date : Sep 2015
    Posts : 4
    Windows 10
    Thread Starter

    Hey,

    Well I did and it didn't help.

    I only assume because this seems like an issue usually caused by malware.

    I tried a scan with Spybot search and destroy, it removed 20 low level txt files, and it seemed resolved. But about two days later it's full again.
      My ComputerSystem Spec
  4.    10 Sep 2015 #4
    Join Date : Aug 2015
    Posts : 237
    win 10

    This likely related to trim, see here
      My ComputerSystem Spec
  5.    10 Sep 2015 #5
    Join Date : Sep 2015
    Posts : 4
    Windows 10
    Thread Starter

    Oh, that sounds right. Is it a benefit to keep this feature on? Or should I disable it?
      My ComputerSystem Spec
  6.    10 Sep 2015 #6
    Join Date : Sep 2015
    Posts : 4
    Windows 10
    Thread Starter

    I tried disabling, but my space only increased by a GB or two, no nearly what I should have. Any suggestions?
      My ComputerSystem Spec
  7.    11 Sep 2015 #7
    Join Date : Oct 2014
    Posts : 401
    Windows 10 Pro

    If you suspect a malware infection I'd download one of the various live scanners (almost any renown av company offers one), burn it to a cd/ dvd and boot from that disc. Then you can perform a system scan without the possibility that the malware has already disabled the av software. If it finds nothing there is probably no such malware on your pc and the cause for your problems must be something else.
      My ComputerSystem Spec
  8.    11 Sep 2015 #8
    Join Date : Sep 2015
    Posts : 276
    Windows 10 Home

    Do not keep trim disabled. You SSD needs it.
      My ComputerSystem Spec
  9.    11 Sep 2015 #9
    Join Date : Oct 2014
    In a house with a crazy cat trying to kill me
    Posts : 17,416
    Win 7 32, Win 7 64 Pro, Win 8.1 64 Pro, Win 10 64 Education Edition

    Since you've already run Malwarebytes & Defender, if you suspect you have an infection, I would suggest you try these scanners & see what they find.

    You may wish to run this program before you do a scan with your malware scanners.

    RKill

    As RKill only terminates a program's running process, and does not delete any files, after running it you should not reboot your computer as any malware processes that are configured to start automatically will just be started again. Instead, after running RKill you should immediately scan your computer using some sort of anti-malware or anti-virus program so that the infections can be properly removed.
    AdwCleaner.

    AdwCleaner is a program that searches for and deletes Adware, Toolbars, Potentially Unwanted Programs (PUP), and browser Hijackers from your computer. By using AdwCleaner you can easily remove many of these types of programs for a better user experience on your computer and while browsing the web.
    TDSSKiller (Rootkit scanner)

    TDSSKiller is a utility created by Kaspersky Labs that is designed to remove the TDSS rootkit. This rootkit is know under other names such as Rootkit.Win32.TDSS, Tidserv, TDSServ, and Alureon. TDSSKiller will also attempt to remove other rootkits such as the ZeroAccess or ZeroAccess rootkit if it is detected.
    Note   Note
    When running TDSSKiller, launch the program, click on the blue text "Change Parameters" & check the box marked "Detect TDLFS File system." Click OK & then run the scan.
      My ComputerSystem Spec
  10.    12 Sep 2015 #10
    Join Date : Oct 2014
    Posts : 401
    Windows 10 Pro

    Like I wrote, I'd use a scanner run from a live cd/dvd or usb stick. Any halfway decently written malware will hide itself from scanners run on your Windows system. Live scanners on the other hand usually run on a Linux so there is no way the malware can hide itself from the scanner. I do that on all pcs I suspect to be infected.
      My ComputerSystem Spec

 
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