ET DOS Terse HTTP GET Likely AnonGhost DDoS tool

Query · suricata

flow:to_server,established;
dsize:20;
content:"GET / HTTP/1.1|0d 0a 0d 0a 0d 0a|"; depth:20;
threshold:type both,track by_dst,count 500,seconds 60;
Raw source ET DOS Terse HTTP GET Likely AnonGhost DDoS tool · 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 tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORTS (
    msg:"ET DOS Terse HTTP GET Likely AnonGhost DDoS tool";
    flow:to_server,established;
    dsize:20;
    content:"GET / HTTP/1.1|0d 0a 0d 0a 0d 0a|"; depth:20;
    threshold:type both,track by_dst,count 500,seconds 60;
    classtype:attempted-dos;
    sid:2019349; rev:2;
    metadata:created_at 2014_10_03, confidence Medium, signature_severity Major, updated_at 2019_07_26;
)

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