ET MALWARE Miniduke variant FTP upload

Query · suricata

flow:to_server,established;
content:"USER ";
pcre:"/^(?:(?:menelao|ho[mr]u)s|adair|johan|kweku)\r\n/R";
Raw source ET MALWARE Miniduke variant FTP upload · 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 ftp $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Miniduke variant FTP upload";
    flow:to_server,established;
    content:"USER ";
    pcre:"/^(?:(?:menelao|ho[mr]u)s|adair|johan|kweku)\r\n/R";
    reference:md5,e175be029dd2b78c059278a567b3ada1;
    reference:url,www.f-secure.com/static/doc/labs_global/Whitepapers/cosmicduke_whitepaper.pdf;
    classtype:targeted-activity;
    sid:2023911; rev:4;
    metadata:created_at 2014_07_03, signature_severity Major, updated_at 2019_07_26;
)

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