ET MALWARE BlackEnergy v2.x HTTP Request with Encrypted Variables

Query · suricata

flow:to_server,established;
http.method;
content:"POST"; nocase;
http.uri;
content:"/getcfg.php";
http.request_body;
pcre:"/^[a-z]{3,6}\x3d[A-F0-9]{50}/i";
Raw source ET MALWARE BlackEnergy v2.x HTTP Request with Encrypted Variables · 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 BlackEnergy v2.x HTTP Request with Encrypted Variables";
    flow:to_server,established;
    http.method;
    content:"POST"; nocase;
    http.uri;
    content:"/getcfg.php";
    http.request_body;
    pcre:"/^[a-z]{3,6}\x3d[A-F0-9]{50}/i";
    reference:url,www.secureworks.com/research/threats/blackenergy2/?threat=blackenergy2;
    classtype:trojan-activity;
    sid:2010885; rev:9;
    metadata:created_at 2010_07_30, signature_severity Major, updated_at 2020_04_21;
)

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