ET HUNTING SUSPICIOUS Excel Add-in Download M2

Query · suricata

flow:to_server,established;
http.header;
content:".xla"; nocase;
pcre:"/Content-Disposition\x3a[^\r\n]*?\.xla[\s\x22\x27]/i";
Raw source ET HUNTING SUSPICIOUS Excel Add-in Download M2 · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET HUNTING SUSPICIOUS Excel Add-in Download M2";
    flow:to_server,established;
    http.header;
    content:".xla"; nocase;
    pcre:"/Content-Disposition\x3a[^\r\n]*?\.xla[\s\x22\x27]/i";
    reference:url,blogs.mcafee.com/mcafee-labs/patch-now-simple-office-protected-view-bypass-could-have-big-impact/;
    classtype:bad-unknown;
    sid:2022966; rev:3;
    metadata:created_at 2016_07_13, confidence Medium, signature_severity Informational, updated_at 2020_07_17;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.