ET INFO Observed DNS Query to Commonly Abused Online Service Domain (app .kuse .ai)

Query · suricata

dns.query; dotprefix;
content:".app.kuse.ai"; nocase; endswith;
threshold:type limit,count 1,seconds 300,track by_src;
Raw source ET INFO Observed DNS Query to Commonly Abused Online Service Domain (app .kuse .ai) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert dns $HOME_NET any -> any any (
    msg:"ET INFO Observed DNS Query to Commonly Abused Online Service Domain (app .kuse .ai)";
    dns.query; dotprefix;
    content:".app.kuse.ai"; nocase; endswith;
    threshold:type limit,count 1,seconds 300,track by_src;
    classtype:misc-activity;
    sid:2069440; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2026_05_26, deployment Perimeter, confidence Medium, signature_severity Informational, updated_at 2026_05_26;
)

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