ET MALWARE Fake Opera 8.11 UA related to Trojan Activity

Query · suricata

flow:established,to_server;
http.user_agent; bsize:10;
content:"opera/8.11";
Raw source ET MALWARE Fake Opera 8.11 UA related to Trojan Activity · 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 MALWARE Fake Opera 8.11 UA related to Trojan Activity";
    flow:established,to_server;
    http.user_agent; bsize:10;
    content:"opera/8.11";
    classtype:trojan-activity;
    sid:2012315; rev:5;
    metadata:created_at 2011_02_18, signature_severity Major, updated_at 2024_03_11;
)

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