ET SCAN SipCLI VOIP Scan - TCP

Query · suricata

flow:established,to_server;
content:"|0D 0A|User-Agent|3A 20|sipcli/"; fast_pattern;
threshold:type limit, count 1, seconds 60, track by_src;
Raw source ET SCAN SipCLI VOIP Scan - TCP · 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 5060 (
    msg:"ET SCAN SipCLI VOIP Scan - TCP";
    flow:established,to_server;
    content:"|0D 0A|User-Agent|3A 20|sipcli/"; fast_pattern;
    threshold:type limit, count 1, seconds 60, track by_src;
    reference:url,www.yasinkaplan.com/SipCli/;
    classtype:attempted-recon;
    sid:2017161; rev:2;
    metadata:created_at 2013_07_17, confidence Medium, signature_severity Informational, updated_at 2019_10_08;
)

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