ET INFO DNS Query for Suspicious .cf Domain

Query · suricata

threshold:type limit, count 1, track by_src, seconds 120;
dns.query;
content:".cf"; nocase; endswith;
Raw source ET INFO DNS Query for Suspicious .cf Domain · 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 DNS Query for Suspicious .cf Domain";
    threshold:type limit, count 1, track by_src, seconds 120;
    dns.query;
    content:".cf"; nocase; endswith;
    classtype:misc-activity;
    sid:2025107; rev:6;
    metadata:created_at 2017_12_03, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_12_01;
)

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