ET MALWARE Suspected SandCat Related Communication (POST)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/hulk/___"; startswith; fast_pattern;
content:".php"; within:15; endswith;
http.request_body;
content:"u_id="; startswith;
http.header_names;
content:!"Referer|0d 0a|";
Raw source ET MALWARE Suspected SandCat Related Communication (POST) · 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 Suspected SandCat Related Communication (POST)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/hulk/___"; startswith; fast_pattern;
    content:".php"; within:15; endswith;
    http.request_body;
    content:"u_id="; startswith;
    http.header_names;
    content:!"Referer|0d 0a|";
    reference:md5,fe5338aee73b3aae375d7192067dc5c8;
    classtype:trojan-activity;
    sid:2029621; rev:2;
    metadata:attack_target Client_Endpoint, created_at 2020_03_12, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_03_12;
)

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