ET MALWARE CrownAdPro CnC Activity M4

Query · suricata

flow:established,to_server;
urilen:10;
http.method;
content:"GET";
http.uri;
content:"/setad.php"; fast_pattern;
http.header_names;
content:"|0d 0a|Host|0d 0a|Accept|0d 0a 0d 0a|"; bsize:18;
Raw source ET MALWARE CrownAdPro CnC Activity M4 · 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 CrownAdPro CnC Activity M4";
    flow:established,to_server;
    urilen:10;
    http.method;
    content:"GET";
    http.uri;
    content:"/setad.php"; fast_pattern;
    http.header_names;
    content:"|0d 0a|Host|0d 0a|Accept|0d 0a 0d 0a|"; bsize:18;
    reference:url,twitter.com/ViriBack/status/1204883534764077057;
    reference:md5,514d11884ed88780710f5a84bbb523c7;
    classtype:command-and-control;
    sid:2029287; rev:1;
    metadata:affected_product Windows_Client_Apps, attack_target Client_Endpoint, created_at 2020_01_16, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_01_16;
)

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