""ET INFO localhost .run TLS Certification Observed""

SID: 2039687

Revision: 1

Class Type: misc-activity

Metadata: attack_target Client_Endpoint, created_at 2022_11_04, deployment Perimeter, performance_impact Low, signature_severity Informational, updated_at 2022_11_04

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|"

  • Value: "|0d|localhost.run"

Within: 14

PCRE:

Special Options:

  • fast_pattern

source