Versions (5)
Version DetailsCurrent
Rev: 1 • Sep 22, 2020, 12:00 PMET MALWARE Observed Malicious SSL Cert (RampantKitten CnC)
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Observed Malicious SSL Cert (RampantKitten CnC)"; flow:from_server,established; tls.cert_subject; content:"CN=afalr-sharepoint.com"; nocase; fast_pattern; endswith; reference:url,research.checkpoint.com/2020/rampant-kitten-an-iranian-espionage-campaign; classtype:domain-c2; sid:2030896; rev:1; metadata:attack_target Client_and_Server, created_at 2020_09_22, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag SSL_Malicious_Cert, tag Rampant_Kitten, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_22, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)
Sep 22, 2020, 12:00 PM
Sep 22, 2020, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 16, 2025, 8:36 PM
rules/emerging-malware.rules