ET RETIRED Evil Keitaro Set-Cookie Inbound (85937)

Query · suricata

flow:established,from_server;
http.stat_code;
content:"200";
http.cookie;
content:"85937=eyJ0e"; fast_pattern;
pcre:"/^[A-Z0-9_\-.]{20,300}\x3b/Ri";
Raw source ET RETIRED Evil Keitaro Set-Cookie Inbound (85937) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET RETIRED Evil Keitaro Set-Cookie Inbound (85937)";
    flow:established,from_server;
    http.stat_code;
    content:"200";
    http.cookie;
    content:"85937=eyJ0e"; fast_pattern;
    pcre:"/^[A-Z0-9_\-.]{20,300}\x3b/Ri";
    classtype:trojan-activity;
    sid:2035620; rev:2;
    metadata:affected_product Any, attack_target Client_Endpoint, created_at 2022_03_25, deployment Perimeter, deployment SSLDecrypt, former_category WEB_CLIENT, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_12, reviewed_at 2024_09_12;
)

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