Versions (5)
Version DetailsCurrent
Rev: 3 • May 9, 2016, 12:00 PMET MALWARE Malicious SSL certificate detected (Ursnif Injects)
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Malicious SSL certificate detected (Ursnif Injects)"; flow:established,to_client; tls.cert_subject; content:"CN=allowherebarbclient.me"; classtype:domain-c2; sid:2022799; rev:3; metadata:attack_target Client_and_Server, created_at 2016_05_09, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag SSL_Malicious_Cert, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_22, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)
May 9, 2016, 12:00 PM
Apr 22, 2024, 12:00 PM
Sep 21, 2024, 3:00 AM
Oct 3, 2025, 8:34 PM
rules/emerging-malware.rules