ET SCAN Amap TCP Service Scan Detected

Query · suricata

flow:to_server;
flags:PA;
content:"service|3A|thc|3A 2F 2F|"; depth:105;
content:"service|3A|thc"; within:40;
Raw source ET SCAN Amap TCP Service Scan Detected · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET SCAN Amap TCP Service Scan Detected";
    flow:to_server;
    flags:PA;
    content:"service|3A|thc|3A 2F 2F|"; depth:105;
    content:"service|3A|thc"; within:40;
    reference:url,freeworld.thc.org/thc-amap/;
    classtype:attempted-recon;
    sid:2010371; rev:2;
    metadata:created_at 2010_07_30, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;
)

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