rule bulwark_https_bulwarkblack_com_velvet_ant_operation_highland_authentication_stack_defense { meta: author = "Bulwark Black LLC" source = "https://bulwarkblack.com/velvet-ant-operation-highland-authentication-stack-defense/" description = "Auto-extracted indicators. Verify before use; not a behavioral detection rule." generated = "2026-08-27T00:00:00Z" tlp = "TLP:CLEAR" indicator_count = "2" strings: $s0 = "thc.org" ascii wide nocase // Domains $s1 = "contact@sygnia.co" ascii wide nocase // Email Addresses condition: any of ($s*) }