""ET INFO Observed DNS over HTTPS Domain in TLS SNI (ca02 .dns4me .net)""
SID: 2046498
Revision: 1
Class Type: misc-activity
Metadata: attack_target Client_Endpoint, created_at 2023_06_21, deployment Perimeter, signature_severity Informational, tag DoH, updated_at 2023_06_21, reviewed_at 2023_09_19
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 0f|ca02.dns4me.net"
Within: 8
PCRE:
Special Options:
- fast_pattern