ET SCAN Chroot-apache0day Unknown Web Scanner User Agent

Query · suricata

flow:established,to_server;
http.user_agent;
content:"chroot-apach0day"; nocase; depth:16;
Raw source ET SCAN Chroot-apache0day Unknown Web Scanner User Agent · 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 SCAN Chroot-apache0day Unknown Web Scanner User Agent";
    flow:established,to_server;
    http.user_agent;
    content:"chroot-apach0day"; nocase; depth:16;
    reference:url,isc.sans.edu/forums/diary/Interesting+HTTP+User+Agent+chroot-apach0day+/18453;
    classtype:attempted-recon;
    sid:2018800; rev:5;
    metadata:created_at 2014_07_29, confidence Medium, signature_severity Informational, updated_at 2020_05_01;
)

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