ET WEB_SERVER LOIC Javascript DDoS Inbound

Query · suricata

flow:established,to_server;
threshold:type both, track by_src, count 5, seconds 60;
http.method;
content:"GET";
http.uri;
content:"?id=";
content:"&msg="; distance:13; within:5;
pcre:"/\?id=[0-9]{13}&msg=[^&]+$/";
Raw source ET WEB_SERVER LOIC Javascript DDoS 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 -> $HOME_NET any (
    msg:"ET WEB_SERVER LOIC Javascript DDoS Inbound";
    flow:established,to_server;
    threshold:type both, track by_src, count 5, seconds 60;
    http.method;
    content:"GET";
    http.uri;
    content:"?id=";
    content:"&msg="; distance:13; within:5;
    pcre:"/\?id=[0-9]{13}&msg=[^&]+$/";
    reference:url,isc.sans.org/diary/Javascript+DDoS+Tool+Analysis/12442;
    reference:url,www.wired.com/threatlevel/2012/01/anons-rickroll-botnet;
    classtype:attempted-dos;
    sid:2014140; rev:6;
    metadata:created_at 2012_01_23, signature_severity Major, updated_at 2020_04_23;
)

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