ET HUNTING Suspicious winlogin.exe in URI

Query · suricata

flow:established,to_server;
urilen:<100;
http.method;
content:"GET";
http.uri;
content:"/winlogon.exe"; nocase; endswith; fast_pattern;
Raw source ET HUNTING Suspicious winlogin.exe in URI · 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 winlogin.exe in URI";
    flow:established,to_server;
    urilen:<100;
    http.method;
    content:"GET";
    http.uri;
    content:"/winlogon.exe"; nocase; endswith; fast_pattern;
    reference:md5,fd95cc0bb7d3ea5a0c86d45570df5228;
    reference:md5,09330c596a33689a610a1b183a651118;
    classtype:bad-unknown;
    sid:2016697; rev:16;
    metadata:created_at 2013_04_02, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_17;
)

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