Not Petya Ransomware

A temporary solution to prevent NotPetya encryptions for Systems Administrators is to create then push a Read-Only file called perfc to C:\Windows using a GPO. After creating the GPO run a gpupdate /force on your Domain Controller.

https://www.bleepingcomputer.com/news/security/vaccine-not-killswitch-found-for-petya-notpetya-ransomware-outbreak/

A temporary solution to prevent NotPetya encryptions for Systems Administrators is to create then push a Read-Only file called perfc to C:\Windows using a GPO. After creating the GPO run a gpupdate /force on your Domain Controller.

https://www.bleepingcomputer.com/news/security/vaccine-not-killswitch-found-for-petya-notpetya-ransomware-outbreak/