This is an obsolete tool written in 2016 for the FIRST version of Princess Locker. The current version is improved and no longer decryptable. It is beneficial (but not required) to supply the unique ID from your ransom note. The tools are protected with PE-Lock (special thanks to Bartosz Wjcik). How to use the keygen you must find one file, that you can provide in both encrypted and encrypted. If you dont have any original file, just supply the extension but be warned that cracking may take a bit longer.”]
Source: https://hshrzd.wordpress.com/2016/11/17/princess-locker-decryptor/