ET MALWARE Observed Win32/Lumma Stealer Related Domain (thiefbshadow .run in TLS SNI)

SID: 2061571Rev: 138 views
Sourceet/open
CreatedApril 14, 2025
UpdatedApril 14, 2025
Classificationdomain-c2
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Win32/Lumma Stealer Related Domain (thiefbshadow .run in TLS SNI)"; flow:established,to_server; tls.sni; bsize:16; content:"thiefbshadow.run"; fast_pattern; reference:url,www.proofpoint.com/us/blog/threat-insight/threat-actors-deliver-malware-youtube-video-game-cracks; classtype:domain-c2; sid:2061571; rev:1; metadata:tls_state TLSEncrypt, created_at 2025_04_14, deployment Perimeter, malware_family Lumma_Stealer, confidence High, signature_severity Critical, updated_at 2025_04_14, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol; target:src_ip;)

References

urlwww.proofpoint.com/us/blog/threat-insight/threat-actors-deliver-malware-youtube-video-game-cracks

Metadata

tls stateTLSEncrypt
created at2025_04_14
deploymentPerimeter
malware familyLumma_Stealer
confidenceHigh
signature severityCritical
updated at2025_04_14
mitre tactic idTA0011
mitre tactic nameCommand_And_Control
mitre technique idT1071
mitre technique nameApplication_Layer_Protocol

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