""ET INFO DNS Over HTTPS Certificate Inbound (dns .adguard-dns .com)""
SID: 2045827
Revision: 1
Class Type: misc-activity
Metadata: attack_target Client_Endpoint, created_at 2023_05_23, deployment Perimeter, signature_severity Informational, updated_at 2023_05_23
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: 443
Destination Network: $HOME_NET
Destination Port: any
Flow: established,to_client
Contents:
-
Value: "|16|"
-
Value: "|0b|"
-
Value: "|06 03 55 04 03|"
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Value: "dns.adguard-dns.com"
Within: 8
PCRE: "/^(?:\x13|\x2e)dns.adguard-dns.com/R"
Special Options: