ET MALWARE APT CozyCar SSL Cert 3

Query · suricata

flow:established,to_client;
tls.cert_subject;
content:"C=--"; startswith;
content:"ST=SomeState";
content:"root@localhost.localdomain"; fast_pattern;
tls.cert_serial;
content:"3d:d6";
Raw source ET MALWARE APT CozyCar SSL Cert 3 · 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 443 -> $HOME_NET any (
    msg:"ET MALWARE APT CozyCar SSL Cert 3";
    flow:established,to_client;
    tls.cert_subject;
    content:"C=--"; startswith;
    content:"ST=SomeState";
    content:"root@localhost.localdomain"; fast_pattern;
    tls.cert_serial;
    content:"3d:d6";
    reference:url,researchcenter.paloaltonetworks.com/2015/07/tracking-minidionis-cozycars-new-ride-is-related-to-seaduke/;
    classtype:targeted-activity;
    sid:2021420; rev:4;
    metadata:attack_target Client_Endpoint, created_at 2015_07_15, deployment Perimeter, confidence High, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2024_04_01;
)

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