GPL SQL sa brute force failed login attempt

Query · suricata

flow:from_server,established;
content:"Login failed for user 'sa'";
threshold:type threshold, track by_src, count 5, seconds 2;
Raw source GPL SQL sa brute force failed login attempt · 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 $SQL_SERVERS 1433 -> $EXTERNAL_NET any (
    msg:"GPL SQL sa brute force failed login attempt";
    flow:from_server,established;
    content:"Login failed for user 'sa'";
    threshold:type threshold, track by_src, count 5, seconds 2;
    reference:bugtraq,4797;
    reference:cve,2000-1209;
    reference:nessus,10673;
    classtype:unsuccessful-user;
    sid:2103152; rev:4;
    metadata:created_at 2010_09_23, cve CVE_2000_1209, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;
)

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