[WINDOWS-MALWARE] FileLocker ransomware file extension detected (.encr)

alert any $HOME_NET any -> $HOME_NET any (msg:"[WINDOWS-MALWARE] FileLocker ransomware file extension detected (.encr)"; program:*Security*; json_map:"event_id",".EventID"; json_map:"username",".Computer"; json_map:"message",".RenderedDescription"; event_id:4663,567,5145; content:".encr "; nocase; after: track by_username, count 25, seconds 3600; threshold: type suppress, track by_username, count 25, seconds 3600; classtype:ransomware; sid:5009083; metadata: created_on 2022_11_22, old_sid 5007007; rev:2;)