alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Lumma Stealer Related Domain"; flow:established,to_server; tls.sni; bsize:22; content:"|62 69 74 63 68 73 61 66 65 74 74 79 75 64 6a 77 75|.shop"; fast_pattern; reference:md5,3db6c10800aab134f200b479c6f6654e; classtype:domain-c2; sid:2054261; rev:2; metadata:tls_state TLSEncrypt, created_at 2024_07_05, deployment Perimeter, malware_family Lumma_Stealer, confidence High, signature_severity Major, updated_at 2025_08_05, reviewed_at 2025_08_05, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol; target:src_ip;)