Versions (4)
Version DetailsCurrent
Rev: 3 • Dec 8, 2015, 12:00 PMET MALWARE Malicious SSL certificate detected (FindPOS)
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Malicious SSL certificate detected (FindPOS)"; flow:established,to_client; tls.cert_serial; content:"00:E0:78:4E:9C:A4:AD:AB:24"; fast_pattern; tls.cert_subject; content:"O=Default Company Ltd"; reference:url,blog.team-cymru.org/2015/06/poseidon-and-the-backoff-pos-link/; classtype:domain-c2; sid:2022228; rev:3; metadata:attack_target Client_and_Server, created_at 2015_12_08, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2022_03_24, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)
Dec 8, 2015, 12:00 PM
Mar 24, 2022, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-malware.rules