ET SCAN ProxyReconBot CONNECT method to Mail

Query · suricata

flow:established,to_server;
content:"CONNECT "; depth:8;
content:"|3A|25 HTTP/"; within:200;
Raw source ET SCAN ProxyReconBot CONNECT method to Mail · 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 SCAN ProxyReconBot CONNECT method to Mail";
    flow:established,to_server;
    content:"CONNECT "; depth:8;
    content:"|3A|25 HTTP/"; within:200;
    classtype:misc-attack;
    sid:2003869; rev:10;
    metadata:created_at 2010_07_30, performance_impact Moderate, confidence Medium, signature_severity Informational, updated_at 2024_04_11;
)

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