ET MALWARE CommentCrew downloader without user-agent string exe download without User Agent

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"open="; nocase;
content:"myid="; nocase;
http.header_names;
content:!"User-Agent|0d 0a|";
Raw source ET MALWARE CommentCrew downloader without user-agent string exe download without User Agent · 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 CommentCrew downloader without user-agent string exe download without User Agent";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"open="; nocase;
    content:"myid="; nocase;
    http.header_names;
    content:!"User-Agent|0d 0a|";
    classtype:targeted-activity;
    sid:2016475; rev:4;
    metadata:created_at 2013_02_22, confidence High, signature_severity Major, updated_at 2020_05_08;
)

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