ET VOIP Possible Misuse Call from Cisco ooh323

Query · suricata

flow:to_server,established;
content:"|28 06|cisco|00|"; offset:14; depth:8;
content:"|b8 00 00 27 05|ooh323|06|"; within:60;
Raw source ET VOIP Possible Misuse Call from Cisco ooh323 · 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 any -> $HOME_NET 1720 (
    msg:"ET VOIP Possible Misuse Call from Cisco ooh323";
    flow:to_server,established;
    content:"|28 06|cisco|00|"; offset:14; depth:8;
    content:"|b8 00 00 27 05|ooh323|06|"; within:60;
    reference:url,videonationsltd.co.uk/2015/04/h-323-cisco-spam-calls/;
    classtype:misc-attack;
    sid:2021066; rev:2;
    metadata:created_at 2015_05_07, confidence Medium, signature_severity Informational, updated_at 2020_08_19;
)

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