ET EXPLOIT_KIT Evil Redirector Leading to EK Feb 05 2016

Query · suricata

flow:established,to_server;
http.uri;
content:"/?keyword="; fast_pattern;
pcre:"/\/\?keyword=(?:(?=[a-f]{0,31}[0-9])(?=[0-9]{0,31}[a-f])[a-f0-9]{32}|\d{5})$/";
Raw source ET EXPLOIT_KIT Evil Redirector Leading to EK Feb 05 2016 · 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 -> $EXTERNAL_NET any (
    msg:"ET EXPLOIT_KIT Evil Redirector Leading to EK Feb 05 2016";
    flow:established,to_server;
    http.uri;
    content:"/?keyword="; fast_pattern;
    pcre:"/\/\?keyword=(?:(?=[a-f]{0,31}[0-9])(?=[0-9]{0,31}[a-f])[a-f0-9]{32}|\d{5})$/";
    classtype:exploit-kit;
    sid:2022493; rev:4;
    metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2016_02_06, deployment Perimeter, confidence High, signature_severity Major, tag Redirector, updated_at 2020_10_05;
)

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