ET SCAN LeakIX Inbound User-Agent

Query · suricata

flow:established,to_server;
http.user_agent;
content:"|28|l9scan|2f|";
content:"|3b 20 2b|https|3a 2f 2f|leakix|2e|net"; fast_pattern;
threshold:type limit, count 1, seconds 600, track by_src;
Raw source ET SCAN LeakIX Inbound User-Agent · 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 LeakIX Inbound User-Agent";
    flow:established,to_server;
    http.user_agent;
    content:"|28|l9scan|2f|";
    content:"|3b 20 2b|https|3a 2f 2f|leakix|2e|net"; fast_pattern;
    threshold:type limit, count 1, seconds 600, track by_src;
    reference:url,leakix.net;
    classtype:misc-activity;
    sid:2049255; rev:1;
    metadata:created_at 2023_11_20, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_11_20;
)

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