""ET INFO Observed DNS over HTTPS Domain in TLS SNI (pihole1 .hoerli .net)""
SID: 2045165
Revision: 1
Class Type: misc-activity
Metadata: attack_target Client_Endpoint, created_at 2023_04_24, deployment Perimeter, confidence High, signature_severity Informational, tag DoH, updated_at 2023_04_24
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 12|pihole1.hoerli.net"
Within: 8
PCRE:
Special Options:
- fast_pattern