ET MALWARE Suspected Bumblebee Loader Activity

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".php"; endswith;
http.user_agent;
content:"PindOS"; bsize:6; fast_pattern;
http.header_names;
content:!"Referer";
target:src_ip;
Raw source ET MALWARE Suspected Bumblebee Loader Activity · 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 Bumblebee Loader Activity";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".php"; endswith;
    http.user_agent;
    content:"PindOS"; bsize:6; fast_pattern;
    http.header_names;
    content:!"Referer";
    reference:md5,c56f106025e1853958f0745516c0b88f;
    reference:url,www.deepinstinct.com/blog/pindos-new-javascript-dropper-delivering-bumblebee-and-icedid;
    classtype:trojan-activity;
    sid:2048933; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2023_10_30, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_10_30, reviewed_at 2023_10_30;
    target:src_ip;
)

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