alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Suspected TA430/Andariel AndarLoader Related Domain in TLS SNI"; flow:established,to_server; tls.sni; bsize:17; content:"privacy.hopto.org"; fast_pattern; reference:md5,a714b928bbc7cd480fed85e379966f95; reference:url,asec.ahnlab.com/en/56405/; classtype:trojan-activity; sid:2051135; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_02_28, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_02_28, reviewed_at 2024_03_29, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)