ET MALWARE TwoFace WebShell Detected

Query · suricata

flow:to_server,established;
http.method;
content:"POST";
http.uri;
content:".aspx";
http.cookie;
content:"data=pro#=#"; fast_pattern;
Raw source ET MALWARE TwoFace WebShell Detected · 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 http $EXTERNAL_NET any -> any any (
    msg:"ET MALWARE TwoFace WebShell Detected";
    flow:to_server,established;
    http.method;
    content:"POST";
    http.uri;
    content:".aspx";
    http.cookie;
    content:"data=pro#=#"; fast_pattern;
    reference:url,www.emanueledelucia.net/a-dive-into-apt34-aka-oilrig-aka-cobalt-gypsy-twoface-webshell/;
    classtype:targeted-activity;
    sid:2027903; rev:2;
    metadata:affected_product Web_Server_Applications, attack_target Client_Endpoint, created_at 2019_08_22, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_01;
)

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