""ET TROJAN Observed Lumma Stealer Domain (adstrra .b-cdn .net in TLS SNI)""
SID: 2055610
Revision: 1
Class Type: trojan-activity
Metadata: tls_state TLSEncrypt, created_at 2024_08_29, deployment Perimeter, malware_family Lumma_Stealer, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_08_29, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: 443
Flow: established,to_server
Contents:
-
Value: "|16|"
-
Value: "|01|"
-
Value: "|00 00 11|adstrra.b-cdn.net"
Within: 8
PCRE:
Special Options:
- fast_pattern