ET EXPLOIT_KIT Unknown Malicious Second Stage Download URI Struct Sept 15 2015

Query · suricata

flow:established,to_server;
urilen:>46;
http.uri;
content:".php?rnd="; fast_pattern;
content:"&id=";
pcre:"/\.php\?rnd=\d+&id=[0-9A-F]{32,}$/";
http.header_names;
content:!"Referer|0d 0a|";
Raw source ET EXPLOIT_KIT Unknown Malicious Second Stage Download URI Struct Sept 15 2015 · 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 -> $EXTERNAL_NET any (
    msg:"ET EXPLOIT_KIT Unknown Malicious Second Stage Download URI Struct Sept 15 2015";
    flow:established,to_server;
    urilen:>46;
    http.uri;
    content:".php?rnd="; fast_pattern;
    content:"&id=";
    pcre:"/\.php\?rnd=\d+&id=[0-9A-F]{32,}$/";
    http.header_names;
    content:!"Referer|0d 0a|";
    classtype:exploit-kit;
    sid:2021786; rev:4;
    metadata:created_at 2015_09_16, confidence Medium, signature_severity Major, updated_at 2020_10_05;
)

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