With yet another widespread ransomware attack, make sure SMB is OFF on your Windows Computer: Turn Off SMB1 on Windows Now - Barbs Connected World.

You may also want to run the ESET EternalBlue Checker, available here: ESET Stops WannaCryptor, WannaCry and EternalBlue. Use our free tool to make sure Windows vulnerabilities are patched—ESET Knowledgebase