Petya Attack.

There is a new pain in the neck in the wild.

Last month it was the “WannaCry” virus wreaking havoc over the internet, and now this week another ransomware exploit is rapidly expanding across Europe and the Ukraine especially. The new variant, dubbed “Petya,” uses the same SMBv1 exploit that WannaCry uses to rapidly replicate throughout network systems, but holds infected computers hostage in a significantly different way.

This link will show steps to avoid getting hit.

Petya ransomware running rampant: how to turn off SMBv1 in Windows to make sure youre safe | On MSFT

Henry.

Vaccine, not Killswitch, Found for Petya (NotPetya) Ransomware Outbreak

How to Enable the NotPetya/Petna/Petya Vaccine

To vaccinate your computer so that you are unable to get infected with the current strain of NotPetya/Petya/Petna (yeah, this naming is annoying), simply create a file called perfc in the C:\Windows folder and make it read only. For those who want a quick and easy way to perform this task, Lawrence Abrams has created a batch file that performs this step for you.
This batch file can be found at: https://download.bleepingcomputer.co...nopetyavac.bat
For those who wish to vaccinate their computer manually, you can so using the following steps. Please note that these steps are being created to make it as easy as possible for those with little computer experience. For those who have greater experience, you can do it in quite a few, and probably better, ways.
First, configure Windows to show file extensions. For those who do not know how to do this, you can use this guide. Just make sure the Folder Options setting for Hide extensions for known file types is unchecked like below.

A sure way against ransomware is to keep regular backups.

swarfega said:

A sure way against ransomware is to keep regular backups.

But on an external disk, not one in the PC, or if you use one, your NAS, or actually any network drive, or cloud drive.
Totally offline & disconnected from the PC.

I totally agree with you Cliff. I am fortunate enough to own a NAS, but not everyone can either afford one or knows they even exist. At the very least people should back up to an external drive and then unplug it.

All you need to know about "Petya"

Everything you need to know about the Petya, er, NotPetya nasty trashing PCs worldwide • The Register