ET INFO Java .jar request to dotted-quad domain

Query · suricata

flow:established,to_server;
http.uri;
content:".jar"; fast_pattern;
http.header;
content:"|20|Java/1";
http.host;
pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/";
Raw source ET INFO Java .jar request to dotted-quad domain · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET INFO Java .jar request to dotted-quad domain";
    flow:established,to_server;
    http.uri;
    content:".jar"; fast_pattern;
    http.header;
    content:"|20|Java/1";
    http.host;
    pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/";
    classtype:bad-unknown;
    sid:2015483; rev:6;
    metadata:created_at 2012_07_18, confidence High, signature_severity Informational, updated_at 2020_11_16;
)

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