alert dns $HOME_NET any -> any any (msg:"ET INFO DYNAMIC_DNS Query to *.autoddns .com Domain"; threshold:type limit, count 1, track by_src, seconds 120; dns.query; content:".autoddns.com"; nocase; endswith; classtype:bad-unknown; sid:2027299; rev:5; metadata:attack_target Client_and_Server, created_at 2019_04_30, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag DynamicDNS, updated_at 2023_04_28, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1568, mitre_technique_name Dynamic_Resolution;)