So I have been watching this while Petya / NotPetya Ransomware / Ransomworm story since yesterday morning and trying to get solid information on it, which has not been easy. It now seems that if you did the Microsoft Security Bulletin MS17-010 – Critical patch from back in March you should be immunized. We did report yesterday that the Petya/NotPetya did not have a built-in killswitch, but one enterprising security researcher from Boston has found a fairly simple way to usurp the file encrypting madness.



So it seems that Petya or NotPetya is spread like WannaCry, so hopefully most folks would have been ready for this from the get-go. That all said, think before you click.

If you want to know a little more about Petya from a analytical level, Colin Hardy has a good video up on it showing it in action.



Ongoing Discussion

Source: [H]ardOCP – Petya Ass There is a Killswitch for NotPetya