ET MALWARE Suspicious UA Mozilla / 4.0

Query · suricata

flow:to_server,established;
http.host;
content:!"captive.apple.com"; endswith;
content:!".google.com"; endswith;
http.user_agent;
content:"Mozilla / 4.0"; nocase; bsize:13;
Raw source ET MALWARE Suspicious UA Mozilla / 4.0 · 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 Suspicious UA Mozilla / 4.0";
    flow:to_server,established;
    http.host;
    content:!"captive.apple.com"; endswith;
    content:!".google.com"; endswith;
    http.user_agent;
    content:"Mozilla / 4.0"; nocase; bsize:13;
    classtype:trojan-activity;
    sid:2013964; rev:6;
    metadata:created_at 2011_11_23, signature_severity Major, updated_at 2020_10_15;
)

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