Versions (2)
Version DetailsCurrent
Rev: 3 • Jan 29, 2025, 12:00 PMET MALWARE Observed Win32/Lumma Stealer Related Domain (classyhelped .net in TLS SNI)
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Win32/Lumma Stealer Related Domain (classyhelped .net in TLS SNI)"; flow:established,to_server; tls.sni; bsize:16; content:"classyhelped.net"; fast_pattern; reference:md5,6ae4f9f4ea6c2a544360ef965bc7841b; classtype:domain-c2; sid:2059778; rev:3; metadata:tls_state TLSEncrypt, created_at 2025_01_29, deployment Perimeter, malware_family Lumma_Stealer, confidence High, signature_severity Critical, updated_at 2025_01_30, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol; target:src_ip;)
Jan 29, 2025, 12:00 PM
Jan 30, 2025, 12:00 PM
Jan 29, 2025, 10:34 PM
May 30, 2025, 12:04 AM
rules/emerging-malware.rules