Unfortunately you cannot do anything.
Attention! Can encrypt all shared files or folders!
There is no way to decrypt if you have not the key.
Only a good AV set to the highest level of protection can prevent infection and encryption.
After encryption, the virus destroy itself and no AV cannot detect anything.
https://www.pcrisk.com/removal-guides/8930-crypt0l0cker-virus
EDIT (I don’t know if it works):
http://www.2-remove-virus.com/remove-crypt0l0cker/
EDIT 2: