alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Kumsuky Related Victim Exfil"; reference:url,x.com/fr0s7_/status/2104911500259315713; reference:url,x.com/byrne_emmy12099/status/2104860628599144754; classtype:command-and-control; sid:2072544; rev:1; metadata:affected_product Windows_Client, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_10_21, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Critical, tag Kimsuky, tag c2, updated_at 2026_10_21, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)