A new variant of the Apocalypse Ransomware was released that utilizes the VMProtect software protection product. Using VMProtect, the ransomware developers hoped to make it more difficult for security researchers to reverse engineer their ransomware. This new variant uses the encrypted and.locked extensions and will create a ransom note called [filename].How_To_Get_Back.txt for each file that is encrypted. To decrypt your files, you can download the ApocalypseVM decryptor from the link below. If a key can be found, press OK and follow the prompts till you get to the main screen to decrypt the C: drive.
Source: https://www.bleepingcomputer.com/news/security/emsisoft-releases-a-decryptor-for-the-apocalypsevm-ransomware/