ET MALWARE Nemucod Downloading Payload 2

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/document.php?rnd="; depth:18; fast_pattern;
content:"&id="; distance:0;
pcre:"/^\/document\.php\?rnd=[0-9]{4}&id=[A-F0-9]{100,}$/i";
http.header_names;
content:!"Referer|0d 0a|";
Raw source ET MALWARE Nemucod Downloading Payload 2 · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Nemucod Downloading Payload 2";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/document.php?rnd="; depth:18; fast_pattern;
    content:"&id="; distance:0;
    pcre:"/^\/document\.php\?rnd=[0-9]{4}&id=[A-F0-9]{100,}$/i";
    http.header_names;
    content:!"Referer|0d 0a|";
    reference:url,trendmicro.com/vinfo/us/threat-encyclopedia/malware/js_nemucod.hqk;
    classtype:trojan-activity;
    sid:2021956; rev:4;
    metadata:created_at 2015_10_16, signature_severity Major, updated_at 2020_06_04;
)

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