I suddenly cannot open files


  1. Posts : 2
    Victoria (VIC)
       #1

    I suddenly cannot open files


    Suddenly today, I find I am unable to open most files. JPG, PDF, DOC, XLS all are claimed to be unknown format or damaged. Not ALL files mind you, just most of them.
    I have tried several different programs to open them with the same result.
    I have created new files and have no trouble, only files that existed before today seem affected. Something malicious has got at them hasn't it? Can I save anyting do you think?
      My Computer


  2. Posts : 20,583
    Win-7-Pro64bit 7-H-Prem-64bit
       #2

    Hi and welcome to SevenForums,
    Review Jacee’s instructions to run Adwcleaner here post #7,
    Ignore the title of the thread,
    https://www.sevenforums.com/system-security/316404-instant-savings-app.html
    Attachment 354642
    You can use these free tools to see if they find anything,
    Manually Update them before running full scans,
    Try not to use your computer while the scans are running, (one at a time of course).
    See this tutorial on how to download and run Malwarebytes,
    https://www.sevenforums.com/tutorials/338716-malwarebytes-anti-malware-free.html
    Also use the Custom scan option not the Threat scan,

    Please Do Not clean/ Delete or Remove Any detections before posting the scan results first before review especially Malwarebytes,
    http://www.malwarebytes.org/products/malwarebytes_free
    SAS is safe to remove anything it finds
    http://www.superantispyware.com/?tag=SUPERANTISPYWARE
    This one is the longest up to 4 hours, the others are only about 45 minutes,
    http://www.microsoft.com/security/scanner/en-us/default.aspx
    Last edited by ThrashZone; 05 Oct 2016 at 21:55.
      My Computer


  3. Posts : 2
    Victoria (VIC)
    Thread Starter
       #3

    Thanks, ThrashZone.
    Turned out to be Trojan.Cryptolocker. I got rid of it easily enough, lost a lot of files though. Must remember to back up more often.
      My Computer


 

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