ET DOS Potential CLDAP Amplification Reflection

Query · suricata

content:"objectclass0"; fast_pattern;
threshold:type both, count 200, seconds 60, track by_src;
Raw source ET DOS Potential CLDAP Amplification Reflection · 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 udp $EXTERNAL_NET any -> $HOME_NET 389 (
    msg:"ET DOS Potential CLDAP Amplification Reflection";
    content:"objectclass0"; fast_pattern;
    threshold:type both, count 200, seconds 60, track by_src;
    reference:url,www.akamai.com/us/en/multimedia/documents/state-of-the-internet/cldap-threat-advisory.pdf;
    reference:url,packetstormsecurity.com/files/139561/LDAP-Amplication-Denial-Of-Service.html;
    classtype:attempted-dos;
    sid:2024585; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Linux, attack_target Client_and_Server, created_at 2017_08_16, deployment Perimeter, performance_impact Significant, confidence Medium, signature_severity Major, updated_at 2019_07_26;
)

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