ET USER_AGENTS Observed Donot Group UA (Mozilla FireFox)

Query · suricata

flow:established,to_server;
http.user_agent;
content:"Mozilla FireFox 61.00"; bsize:21;
Raw source ET USER_AGENTS Observed Donot Group UA (Mozilla FireFox) · 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 USER_AGENTS Observed Donot Group UA (Mozilla FireFox)";
    flow:established,to_server;
    http.user_agent;
    content:"Mozilla FireFox 61.00"; bsize:21;
    reference:md5,8f2829a963c3b6f247ac77e0bf992bf1;
    classtype:trojan-activity;
    sid:2044207; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2023_02_15, deployment Perimeter, deployment SSLDecrypt, malware_family DonotGroup, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_02_15;
)

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