ET SCAN NETWORK Incoming Masscan detected

Query · suricata

flow:established,to_server;
http.user_agent;
content:"masscan/"; depth:13;
Raw source ET SCAN NETWORK Incoming Masscan detected · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http any any -> $HOME_NET any (
    msg:"ET SCAN NETWORK Incoming Masscan detected";
    flow:established,to_server;
    http.user_agent;
    content:"masscan/"; depth:13;
    reference:url,blog.erratasec.com/2013/10/that-dlink-bug-masscan.html;
    reference:url,blog.erratasec.com/2013/09/masscan-entire-internet-in-3-minutes.html;
    classtype:network-scan;
    sid:2017616; rev:7;
    metadata:created_at 2013_10_18, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_07_23;
)

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