alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed TA402 Domain in TLS SNI"; flow:established,to_server; tls.sni; bsize:15; content:"theconomics.net"; fast_pattern; classtype:trojan-activity; sid:2049163; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_07_31, deployment Perimeter, confidence High, signature_severity Major, tag SSL_Malicious_Cert, tag TA402, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_11_13, reviewed_at 2024_01_26, former_sid 2854971, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)