ET POLICY GNU/Linux APT User-Agent Outbound likely related to package management

Query · suricata

flow:established,to_server;
http.user_agent;
content:"APT-HTTP|2F|";
Raw source ET POLICY GNU/Linux APT User-Agent Outbound likely related to package management · 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 POLICY GNU/Linux APT User-Agent Outbound likely related to package management";
    flow:established,to_server;
    http.user_agent;
    content:"APT-HTTP|2F|";
    reference:url,help.ubuntu.com/community/AptGet/Howto;
    classtype:not-suspicious;
    sid:2013504; rev:6;
    metadata:created_at 2011_08_31, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_22;
)

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