ET SCAN Metasploit WMAP GET len 0 and type

Query · suricata

flow:established,to_server;
threshold:type limit, track by_src,count 1,seconds 60;
http.method;
content:"GET";
http.header;
content:"|0d 0a|Content-Type|3A 20|text/plain|0d 0a|Content-Length|3A 20|0|0d 0a|";
Raw source ET SCAN Metasploit WMAP GET len 0 and type · 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 Metasploit WMAP GET len 0 and type";
    flow:established,to_server;
    threshold:type limit, track by_src,count 1,seconds 60;
    http.method;
    content:"GET";
    http.header;
    content:"|0d 0a|Content-Type|3A 20|text/plain|0d 0a|Content-Length|3A 20|0|0d 0a|";
    classtype:attempted-recon;
    sid:2011974; rev:5;
    metadata:affected_product Any, attack_target Client_and_Server, created_at 2010_11_24, deployment Perimeter, deployment Internet, deployment Internal, deployment Datacenter, confidence Medium, signature_severity Critical, tag Metasploit, updated_at 2020_09_03;
)

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