alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed SocGholish Domain in TLS SNI"; flow:established,to_server; tls.sni; content:"public.clickstat360.com"; bsize:23; reference:url,decoded.avast.io/janrubin/parrot-tds-takes-over-web-servers-and-threatens-millions; classtype:trojan-activity; sid:2035896; rev:2; metadata:attack_target Client_Endpoint, created_at 2020_06_11, deployment Perimeter, deprecation_reason Age, performance_impact Low, confidence High, signature_severity Major, tag compromised_website, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_01_26, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)