ET MALWARE Observed Win32/Lumma Stealer Related Domain (mirelvse .cyou) in TLS SNI
Sourceet/open
CreatedJanuary 12, 2026
UpdatedJanuary 12, 2026
Classificationdomain-c2
alert tls $HOME_NET any -> any any (msg:"ET MALWARE Observed Win32/Lumma Stealer Related Domain (mirelvse .cyou) in TLS SNI"; flow:established,to_server; tls.sni; bsize:13; content:"mirelvse.cyou"; fast_pattern; nocase; reference:md5,dc256f78dc1e1dd2faa863ef46e7b4f4; classtype:domain-c2; sid:2066691; rev:1; metadata:tls_state TLSEncrypt, created_at 2026_01_12, deployment Perimeter, malware_family Lumma_Stealer, confidence High, signature_severity Critical, updated_at 2026_01_12, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol; target:src_ip;)
References
| md5 | dc256f78dc1e1dd2faa863ef46e7b4f4 |
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