Vaccine for Bar Rabbit ransomware, as described by Cybereason here: https://www.cybereason.com/blog/cybereason-researcher-discovers-vaccine-for-badrabbit-ransomware
Update: No need to run as administrator any more. The script presents the UAC message box automatically as described by Matt in this post: https://stackoverflow.com/a/12264592
For the old version (without automatic administrator escalation) check the file "antiBadRabbit_noAutomaticPrvEscalation.bat"