A Pastbin post was created that contains the master RSA decryption key for the FilesLocker Ransomware. The release of this key has allowed a decryptor to be created that can recover victim’s files for free. It is not known why the keys were released, but the final statement of “The end is just the beginning”” may be a clue that the developers are redesigning their ransomware or switching to a new project. In order for the decryption to work
Source: security