ET MALWARE Mocelpa Client Hello CnC Beacon

Query · suricata

flow:established,to_server;
content:"|54 b4 c9 7b|"; fast_pattern;
tls.sni; bsize:13;
content:"www.apple.com";
Raw source ET MALWARE Mocelpa Client Hello CnC Beacon · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tls $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Mocelpa Client Hello CnC Beacon";
    flow:established,to_server;
    content:"|54 b4 c9 7b|"; fast_pattern;
    tls.sni; bsize:13;
    content:"www.apple.com";
    reference:url,blog.dragonthreatlabs.com/2015/07/dtl-06282015-01-apt-on-taiwan-insight.html;
    classtype:command-and-control;
    sid:2021379; rev:3;
    metadata:attack_target Client_Endpoint, created_at 2015_07_06, deployment Perimeter, signature_severity Major, tag c2, updated_at 2024_04_25, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)

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.