I am also facing the same issue on BD IS 2012. I don't know where to turn off this "Rule 25" so that my Linux NAS doesn't get blocked.
If any Bitdefender technical support staff can help, it would be greatly appreciated.
Welcome to the forums.
Please follow the steps explained in the article below and send me via PM the generated log file:
If the file is too big to attach it, upload it on
and send me a PM with the download link.
If you were already asked to generate the log file, disregard the message above and just post the ticket ID.
Have a nice day.