Late February 2017, a new type of ransomware for Mac was discovered. This ransomware, called FindZip, infects users by pretending to be a cracked version of commercial applications, such as Adobe Premiere Pro. Once it infects a Mac, it utilizes a ZIP encryption to encrypt documents - the exact same scheme used by the Windows ransomware, Bart, which we decrypted last summer.
Article Link: https://blog.avast.com/mac-findzip-ransomware-decryption-tool-helps-you-unzip-your-encrypted-files