ET MALWARE Observed Malicious SSL Cert (Sidewinder CnC)

Query · suricata

flow:established,from_server;
tls.cert_serial;
content:"0E:34:1C:D9:8B:86";
Raw source ET MALWARE Observed Malicious SSL Cert (Sidewinder CnC) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tls $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE Observed Malicious SSL Cert (Sidewinder CnC)";
    flow:established,from_server;
    tls.cert_serial;
    content:"0E:34:1C:D9:8B:86";
    classtype:domain-c2;
    sid:2028566; rev:2;
    metadata:attack_target Client_and_Server, created_at 2019_09_10, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag SSL_Malicious_Cert, tag Sidewinder, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_02, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.