ET POLICY IP Check Domain (showip in HTTP Host)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.host;
content:"showip."; fast_pattern;
pcre:"/^[^\r\n]*showip\.[a-z]+(?:\x3a\d{1,5})?\r?$/Wm";
Raw source ET POLICY IP Check Domain (showip in HTTP Host) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET POLICY IP Check Domain (showip in HTTP Host)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.host;
    content:"showip."; fast_pattern;
    pcre:"/^[^\r\n]*showip\.[a-z]+(?:\x3a\d{1,5})?\r?$/Wm";
    classtype:attempted-recon;
    sid:2008987; rev:9;
    metadata:created_at 2010_07_30, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_12_09, reviewed_at 2024_05_01;
)

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