1.    17 Mar 2016 #1
    Join Date : Mar 2016
    Posts : 1
    Windows 10

    Help pls .. Unknown.exe high CPU usage


    Ok so I am new here and really need some help

    So from yesterday I have been getting this unknown process in task manager, its an application (.exe).
    It has very high cpu usage making my computer really slow.

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    I tried ending process from task manager but it will just pop up again.

    Well when I disconnect internet and than end process it works but again when its connected to internet 'unknown' appears.

    I tried cc cleaner, microsoft safety scanner, full scan but nothing.

    If someone can help me much appreciated. and sorry for my bad english typing.
      My ComputerSystem Spec
  2.    18 Mar 2016 #2
    Join Date : Jul 2015
    Posts : 3,820
    10 Pro

    It looks like malware mining for bitcoins - Malware scan of unknown.exe

    You could try deleting C:\ProgramData\Unknown\Unknown.exe (and C:\ProgramData\Unknown.exe if it is there) but it will most likely come back.

    Running a Malwarebytes scan should get rid of it if it does as there are lots of reports of this file in their logs on the internet. You can download the free version from here Malwarebytes | Malwarebytes Anti-Malware Premium
      My ComputerSystem Spec
  3.    18 Mar 2016 #3
    Join Date : Oct 2014
    Trnava
    Posts : 2,980
    10.4 Home 1709 x64

    Quote Originally Posted by skedadle View Post
    I tried cc cleaner, microsoft safety scanner, full scan but nothing.
    Miners can be bundled with legitimate software, it is becoming more adware than malware these days.
    So most AVs will not detect it, or they will detect it as PUP (potentially unwanted program) at best.
    Check installed programs, if there is something you do not know, uninstall what you do not use.

    Quote Originally Posted by lx07 View Post
    You could try deleting C:\ProgramData\Unknown\Unknown.exe (and C:\ProgramData\Unknown.exe if it is there) but it will most likely come back.
    Indeed, since it is coming back, take ownership of the folder or just exe and then remove all users.
    No one will be able to run it, it will fail and maybe you will get a popup, what tries to start it.

    https://www.tenforums.com/tutorials/3841-take-ownership-add-context-menu-windows-10-a.html
    Attached Thumbnails Attached Thumbnails capture_03182016_103519.jpg  
      My ComputerSystem Spec
  4.    19 Mar 2016 #4
    Join Date : Jan 2015
    UK, Midlands
    Posts : 11,133
    Win 10 Pro (1703)

    Once you have got rid of it, start using a freeware tool to prompt you if anything is added to the list of startups. That way you can reject it.

    However some things are persistent, and will try again an again.

    For example:
    Winpatrol
    Mike Lin's ancient Startup Monitor

    Also start using disk imaging and update your image periodically. This can help you restore your PC to a working state in 20 mins, say, without technical help.
      My ComputerSystem Spec
  5.    05 Feb 2017 #5
    Join Date : Feb 2017
    Posts : 1
    windows 10

    I also have had the same unknown.exe problem Via taskmanager I saw it using up all of the spare processeur power i.e. always at 100%
    but now ,after using malwarebytes; as above,-THANKS Ix07 its gone but malwarebytes is using between 15 & 20% and windows commands translator 10%.
    Is this normal?
      My ComputerSystem Spec

 


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