The prevention is better than the cure, users can immunize their PC against CTB-Locker, Locky and TeslaCrypt using Bitdefender Anti-ransomware vaccine. The most recent version, 1.0.11.26, includes detection for the latest variant of ransomware in the wild. The latest version of the latest version is 4.0 version of TeslaCrypt, which has significant improvements in its encryption. The new tool is an outgrowth of the Cryptowall vaccine program, in a way.”]
Source: https://securityaffairs.co/wordpress/45765/malware/bitdefender-anti-ransomware-vaccine.html