ET SCAN Behavioral Unusual Port 137 traffic Potential Scan or Infection

Query · suricata

flow:to_server;
flags:S,12;
threshold:type both, track by_src, count 70 , seconds 60;
Raw source ET SCAN Behavioral Unusual Port 137 traffic Potential Scan or Infection · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $HOME_NET any -> any 137 (
    msg:"ET SCAN Behavioral Unusual Port 137 traffic Potential Scan or Infection";
    flow:to_server;
    flags:S,12;
    threshold:type both, track by_src, count 70 , seconds 60;
    classtype:misc-activity;
    sid:2001580; rev:15;
    metadata:created_at 2010_07_30, confidence Medium, signature_severity Informational, updated_at 2019_07_26;
)

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