Ransomware malware has evolved to be a tremendous threat over the last few years. Such malware will install on your system, encrypt or damage data on your system in a way that in many cases is irrecoverable unless you have a decryption key. Consumers may have to pay the malware authors hefty amounts of money (varies from a few 100 to a 1000 USD) to obtain the recovery key. Failure to do so typically results in permanent loss of data.
Interceptor is an Anti-Ransomware tool. Interceptor is an early detection tool that prevents file encryption attempts by ransomware malware. This tool leverages heuristics and machine learning to identify such malware.
Homepage
http://www.mcafee.com/us/downloads/free-tools/interceptor.aspx