Download / clone our git repository nexxai/CryptoBlocker and run the .\DeployCryptoBlocker.ps1 script.
Unfortunately there isn't an easy way to accomplish this, but you'll want to schedule the script to run on a regular basis. You can use something like a Task Scheduler item to accomplish this. Doing this will ensure that your systems are kept up to date with the latest known ransomware file types.
Your server is now protected. Go have a beer (or something equally delicious)!