ET USER_AGENTS Observed Malicious VBS Related UA

Query · suricata

flow:established,to_server;
http.user_agent;
content:"Mozilla/5.0 (Windows NT 10.0|3b 20|Win64|3b 20|x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36/"; fast_pattern; startswith;
pcre:"/^[A-Za-z0-9]{17}$/R";
Raw source ET USER_AGENTS Observed Malicious VBS Related UA · 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 $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET USER_AGENTS Observed Malicious VBS Related UA";
    flow:established,to_server;
    http.user_agent;
    content:"Mozilla/5.0 (Windows NT 10.0|3b 20|Win64|3b 20|x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36/"; fast_pattern; startswith;
    pcre:"/^[A-Za-z0-9]{17}$/R";
    reference:md5,2a90a42a4f379fb4a28bb32a96f8fc0f;
    classtype:trojan-activity;
    sid:2039832; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_11_23, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_11_23;
)

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