Rule History

SID: 2056559 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 3 • Oct 8, 2024, 12:00 PM

Message:

ET MALWARE Observed Win32/Lumma Stealer Related Domain (condifendteu .sbs in TLS SNI)

Rule:

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Win32/Lumma Stealer Related Domain (condifendteu .sbs in TLS SNI)"; flow:established,to_server; tls.sni; bsize:16; content:"condifendteu.sbs"; fast_pattern; reference:md5,d3eb43ad8f6e01946593ff368a41eca1; classtype:domain-c2; sid:2056559; rev:3; metadata:tls_state TLSEncrypt, created_at 2024_10_08, deployment Perimeter, deprecation_reason Age, malware_family Lumma_Stealer, performance_impact Low, confidence High, signature_severity Critical, updated_at 2025_03_07, reviewed_at 2025_03_07, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol; target:src_ip;)

Created:

Oct 8, 2024, 12:00 PM

Updated:

Mar 7, 2025, 12:00 PM

DB Created:

Oct 9, 2024, 9:00 PM

DB Updated:

May 30, 2025, 12:04 AM

Filename:

rules/emerging-malware.rules