Windows 10: Create a single file to protect yourself from the latest ransomware

  1. Borg 386's Avatar
    Posts : 21,185
    Win 7 32, Win 7 64 Pro, Win 8.1 64 Pro, Win 10 64 Education Edition
       28 Jun 2017 #1

    Create a single file to protect yourself from the latest ransomware


    There's no cure for the latest ransomware attack, but a researcher has discovered a way to prevent infection through the creation of a single Windows file.
    As reported by Bleeping Computer, there is a way to prevent infection -- not cure, but protect from -- which takes no more than a few minutes of your time.

    After investigating the Petya ransomware, Cybereason security researcher Amit Serper realized that if the malware is downloaded and executes on an infected system, the ransomware looks for a specific local file and will both exit and not encrypt a system if that file is found.
    In order to enable the preventative measure, an extensionless file called perfc needs to be created in the C:\Windows folder and made read-only.
    This is not a kill-switch for Petya. As of the time of writing, no researcher has been able to find a way to create one to shut down the campaign. However, this is a measure that can protect individual systems -- at least, for now.

    As the workaround is now public, it is possible the Petya operators will modify the malware's source to negate these defenses. Patching, as in many cases, is king.
    Create a single file to protect yourself from the latest ransomware attack | ZDNet
      My ComputerSystem Spec

  2. dencal's Avatar
    Posts : 2,803
    W10 Pro + W10 Preview
       28 Jun 2017 #1

    Vacinate?
    Attached Thumbnails Attached Thumbnails pet note.JPG  
      My ComputersSystem Spec

  3. Hydrate's Avatar
    Posts : 124
    Windows 10.0.15063 (Version 1703) Pro 64-bit
       28 Jun 2017 #2

    dencal said: View Post
    Vacinate?
    At this point it is a matter of securing your inbound and outbound firewall ports and turning off insecure daemons (services).
      My ComputerSystem Spec


 

Related Threads
Hi It appears that the FH default catalog does not include <username>\AppData - I cannot imagine why, as its contents are obviously needed. My difficulties, mainly in understanding I think, started after adding AppData to the catalog: I...
Latest Version of Malwarebytes Anti-Ransomware in AntiVirus, Firewalls and System Security
Latest Version of Malwarebytes Anti-Ransomware BETA 8 Version: 0.9.17.661 Release Date: September 6th 2016 Information and Download: New version - BETA 8 - now available! - Malwarebytes Anti-Ransomware Beta - Malwarebytes Forums
Warning: Latest Petya Ransomware Strain Comes with a Failsafe: Mischa 79958 See also here: https://www.tenforums.com/windows-10-news/50417-warning-latest-petya-ransomware-strain-comes-failsafe-mischa.html
Latest Petya Ransomware Strain Comes with a Failsafe: Mischa 79957 Read more: https://threatpost.com/latest-petya-ransomware-strain-comes-with-a-failsafe-mischa/118072/
Hi, I've got two machines, a desktop and a Laptop, both running Windows 10. I am wondering if I can create a single bootable USB recovery drive adequate for restoring both systems. Or do I need to make TWO USB drives for that purpose. edwin
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 11:58.
Find Us