""ET INFO Observed DNS over HTTPS Domain in TLS SNI (dns .timochan .cn)""
SID: 2045963
Revision: 1
Class Type: misc-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_05_30, deployment Perimeter, performance_impact Low, signature_severity Informational, tag DoH, updated_at 2023_05_30
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|dns.timochan.cn"
Within: 8
PCRE:
Special Options:
- fast_pattern