alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed Teramind RMM Domain (teramind .co) in TLS SNI"; flow:established,to_server; tls.sni; dotprefix; content:".teramind.co"; endswith; fast_pattern; reference:url,kb.teramind.co/en/articles/8791054-how-to-check-if-teramind-ip-addresses-hosts-and-ports-are-reachable; classtype:misc-activity; sid:2066654; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Mac_OSX, attack_target Client_and_Server, created_at 2026_01_09, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag Teramind, updated_at 2026_01_09, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1219, mitre_technique_name Remote_Access_Software;)