ET MALWARE NS SSL Cert APT1

Query · suricata

flow:established,to_client;
tls.cert_serial;
content:"72:A2:5C:8A:B4:18:71:4e:BF:C6:6F:3F:98:D6:F7:74";
tls.cert_subject;
content:"CN=NS";
Raw source ET MALWARE NS SSL Cert APT1 · 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 NS SSL Cert APT1";
    flow:established,to_client;
    tls.cert_serial;
    content:"72:A2:5C:8A:B4:18:71:4e:BF:C6:6F:3F:98:D6:F7:74";
    tls.cert_subject;
    content:"CN=NS";
    reference:url,www.mandiant.com/apt1;
    classtype:targeted-activity;
    sid:2016466; rev:4;
    metadata:attack_target Client_Endpoint, created_at 2013_02_22, deployment Perimeter, confidence High, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2022_03_21;
)

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.