ET INFO Java Url Lib User Agent Web Crawl (Inbound)

Query · suricata

flow:established,to_server;
http.user_agent;
content:"Java/"; nocase;
pcre:"/^\d\d?\.\d/Ri";
threshold:type both, track by_src, count 10, seconds 60;
target:dest_ip;
Raw source ET INFO Java Url Lib User Agent Web Crawl (Inbound) · Suricata
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Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET INFO Java Url Lib User Agent Web Crawl (Inbound)";
    flow:established,to_server;
    http.user_agent;
    content:"Java/"; nocase;
    pcre:"/^\d\d?\.\d/Ri";
    threshold:type both, track by_src, count 10, seconds 60;
    reference:url,www.mozilla.org/docs/netlib/seealso/netmods.html;
    classtype:misc-activity;
    sid:2002945; rev:15;
    metadata:attack_target Web_Server, created_at 2010_07_30, deployment Perimeter, confidence High, signature_severity Informational, updated_at 2023_04_28;
    target:dest_ip;
)

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