""ET INFO Observed DNS over HTTPS Domain in TLS SNI (* .dnscry .pt)""
SID: 2048447
Revision: 2
Class Type: misc-activity
Metadata: affected_product Any, attack_target Client_and_Server, created_at 2023_10_04, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2023_11_29, reviewed_at 2023_10_04
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|"
-
Value: "|00|"
-
Value: "dnscry.pt"
Within: 1
PCRE: "/^(?:\x00\x0a|.\x2e)dnscry.pt/R"
Special Options: