ET POLICY Microsoft Online Storage Client Hello TLSv1 Possible OneDrive (storage.live .com)

Query · suricata

flow:established,to_client;
dsize:>20;
content:"|16 03 01|"; depth:3;
content:".storage.live.com"; nocase;
Raw source ET POLICY Microsoft Online Storage Client Hello TLSv1 Possible OneDrive (storage.live .com) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $EXTERNAL_NET 443 -> $HOME_NET any (
    msg:"ET POLICY Microsoft Online Storage Client Hello TLSv1 Possible OneDrive (storage.live .com)";
    flow:established,to_client;
    dsize:>20;
    content:"|16 03 01|"; depth:3;
    content:".storage.live.com"; nocase;
    reference:url,skydrive.live.com;
    classtype:policy-violation;
    sid:2014920; rev:3;
    metadata:created_at 2012_06_19, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;
)

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