ET HUNTING SUSPICIOUS Excel Add-in Download M1

Query · suricata

flow:to_server,established;
http.uri;
content:".xla"; nocase; endswith;
Raw source ET HUNTING SUSPICIOUS Excel Add-in Download M1 · 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 HUNTING SUSPICIOUS Excel Add-in Download M1";
    flow:to_server,established;
    http.uri;
    content:".xla"; nocase; endswith;
    reference:url,blogs.mcafee.com/mcafee-labs/patch-now-simple-office-protected-view-bypass-could-have-big-impact/;
    classtype:bad-unknown;
    sid:2022965; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_07_13, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, updated_at 2020_07_17;
)

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