ET POLICY Mattermost API Usage

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/api/v4/teams/name/";
http.header;
content:"|0d 0a|Authorization|3a 20|Bearer|20|"; fast_pattern;
http.header_names;
content:!"Referer|0d 0a|";
content:!"User-Agent";
Raw source ET POLICY Mattermost API Usage · 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 Mattermost API Usage";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/api/v4/teams/name/";
    http.header;
    content:"|0d 0a|Authorization|3a 20|Bearer|20|"; fast_pattern;
    http.header_names;
    content:!"Referer|0d 0a|";
    content:!"User-Agent";
    reference:md5,df7e78609dd63fe9f3be87be0e2420fa;
    classtype:misc-activity;
    sid:2029599; rev:2;
    metadata:attack_target Client_Endpoint, created_at 2020_03_09, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Minor, updated_at 2020_03_09;
)

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