ET POLICY Windows-Based OpenSSL Tunnel Connection Outbound 2

Query · suricata

flow:established;
content:"|16 03 00|";
content:"|00 26|"; distance:0;
content:"|00 39 00 38 00 35 00 16 00 13 00 0a 00 33 00 32 00 2f 00 05 00 04 00 15 00 12 00 09 00 14 00 11 00 08 00 06 00 03|"; distance:0;
threshold:type both, count 1, seconds 300, track by_dst;
Raw source ET POLICY Windows-Based OpenSSL Tunnel Connection Outbound 2 · 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 tcp $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET POLICY Windows-Based OpenSSL Tunnel Connection Outbound 2";
    flow:established;
    content:"|16 03 00|";
    content:"|00 26|"; distance:0;
    content:"|00 39 00 38 00 35 00 16 00 13 00 0a 00 33 00 32 00 2f 00 05 00 04 00 15 00 12 00 09 00 14 00 11 00 08 00 06 00 03|"; distance:0;
    threshold:type both, count 1, seconds 300, track by_dst;
    reference:url,www.stunnel.org/download/binaries.html;
    classtype:policy-violation;
    sid:2012079; rev:4;
    metadata:created_at 2010_12_22, confidence High, signature_severity Informational, updated_at 2019_07_26;
)

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