Any files that are encrypted with Satan RaaS
(Ransomware as a Service) will have it's filename scrambled, the .STN
extension appended to the end of the encrypted data filename and leave files (ransom notes) named HELP_DECRYPT_FILES.html as explained here
Unfortunately, there is no known way
at this time to decrypt files encrypted by Satan RaaS without paying the ransom. If possible, your best option is to restore from backups, try file recovery software
or wait for a possible solution at a later time.
There is an ongoing discussion in this topic where victims can post comments, ask questions and seek further assistance. Other victims have been directed there to share information, experiences and suggestions.
When or if a decryption solution is found, that information will be provided in that support topic and you will receive notification if subscribed to it. In addition, a news article most likely will be posted on the BleepingComputer front page
Rather than have everyone with individual topics, it would be best (and more manageable for staff) if you posted any more questions, comments or requests for assistance in the above support topic discussion...it includes experiences by experts, a variety of IT consultants, end users and company reps who have been affected by ransomware infections. To avoid unnecessary confusion, this topic is closed.
The BC Staff