New tool Spots file-encrypting malware known as ransomware. Windows-only software, called CryptoDrop, watches for common tactics wielded by ransomware families. Ransomware acts very differently from legitimate software in that it very quickly makes drastic changes to many files. To date, the tool has been tested against 492 ransomware samples downloaded from VirusTotal, including 14 families: CryptoDefense, CryptoFortress, CryptoTorLocker, PoshCoder, CTBocker, Tesla-Locker and a clone of a clone.”]
Source: https://www.bankinfosecurity.com/research-project-stops-ransomware-cold-a-9255