ET MALWARE MSIL/GravityRAT CnC Checkin M2

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:".php"; endswith;
http.request_body;
content:"signatureHash="; fast_pattern;
content:"signatureString=";
content:"userName=";
content:"pcName=";
content:"macId=";
content:"cpuId=";
content:"agent=";
Raw source ET MALWARE MSIL/GravityRAT CnC Checkin M2 · 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 MSIL/GravityRAT CnC Checkin M2";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".php"; endswith;
    http.request_body;
    content:"signatureHash="; fast_pattern;
    content:"signatureString=";
    content:"userName=";
    content:"pcName=";
    content:"macId=";
    content:"cpuId=";
    content:"agent=";
    reference:url,securelist.com/gravityrat-the-spy-returns/99097/;
    classtype:command-and-control;
    sid:2031061; rev:2;
    metadata:attack_target Client_Endpoint, created_at 2020_10_19, deployment Perimeter, malware_family GravityRAT, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_19;
)

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