""ET INFO Observed DNS over HTTPS Domain in TLS SNI (dns .ningkelle .id)""

SID: 2047668

Revision: 1

Class Type: misc-activity

Metadata: affected_product Any, attack_target Client_Endpoint, created_at 2023_08_17, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2023_08_17, reviewed_at 2023_08_17

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: "dns.ningkelle.id"

Within: 1

PCRE: "/^(?:\x00\x10|.\x2e)dns.ningkelle.id/R"

Special Options:

source