alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO DYNAMIC_DNS HTTP Request to a *.loseyourip .com Domain"; flow:established,to_server; http.host; content:".loseyourip.com"; endswith; reference:url,www.dynu.com/ControlPanel/AddDDNS; classtype:bad-unknown; sid:2046022; rev:2; metadata:attack_target Client_and_Server, created_at 2023_06_01, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2024_06_11, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1568, mitre_technique_name Dynamic_Resolution;)