A Simple Vaccine For Your Computer To Prevent NotPetya

@echo off
REM NotPetya Vaccine in Batch
echo Administrative permissions required. Detecting permissions...
echo.

net session >nul 2>&1

if %errorLevel% == 0 (
    if exist C:\Windows\perfc (
        echo Computer already vaccinated for NotPetya/Petya/Petna/SortaPetya.
        echo.
    ) else (
        echo This is a NotPetya/Petya/Petna/SortaPetya Vaccination file. Do not remove as it protects you from being encrypted by Petya. > C:\Windows\perfc
                echo This is a NotPetya/Petya/Petna/SortaPetya Vaccination file. Do not remove as it protects you from being encrypted by Petya. > C:\Windows\perfc.dll
                echo This is a NotPetya/Petya/Petna/SortaPetya Vaccination file. Do not remove as it protects you from being encrypted by Petya. > C:\Windows\perfc.dat

        attrib +R C:\Windows\perfc
                attrib +R C:\Windows\perfc.dll
                attrib +R C:\Windows\perfc.dat

        echo Computer vaccinated for current version of NotPetya/Petya/Petna/SortaPetya.
        echo.
    )
) else (
    echo Failure: You must run this batch file as Administrator.
)

pause