ET POLICY External Timezone Check (earthtools.org)

Query · suricata

flow:established,to_server;
http.uri;
content:"/timezone/"; depth:10;
http.host;
content:"www.earthtools.org"; bsize:18; fast_pattern;
http.header_names;
content:!"Referer|0d 0a|";
Raw source ET POLICY External Timezone Check (earthtools.org) · Suricata
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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 External Timezone Check (earthtools.org)";
    flow:established,to_server;
    http.uri;
    content:"/timezone/"; depth:10;
    http.host;
    content:"www.earthtools.org"; bsize:18; fast_pattern;
    http.header_names;
    content:!"Referer|0d 0a|";
    classtype:policy-violation;
    sid:2021120; rev:3;
    metadata:created_at 2015_05_20, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_05_22;
)

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