ET POLICY Self Signed SSL Certificate (Snake Oil CA)

Query · suricata

flow:established,to_client;
tls.cert_issuer;
content:"CN=Snake Oil CA"; fast_pattern;
Raw source ET POLICY Self Signed SSL Certificate (Snake Oil CA) · 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 POLICY Self Signed SSL Certificate (Snake Oil CA)";
    flow:established,to_client;
    tls.cert_issuer;
    content:"CN=Snake Oil CA"; fast_pattern;
    classtype:policy-violation;
    sid:2013295; rev:3;
    metadata:attack_target Client_Endpoint, created_at 2011_07_21, deployment Perimeter, confidence High, signature_severity Informational, tag SSL_Malicious_Cert, updated_at 2022_03_23, reviewed_at 2024_03_11;
)

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