""ET INFO Interactsh Domain (.oast .site in TLS SNI)""

SID: 2047776

Revision: 1

Class Type: misc-activity

Metadata: attack_target Client_Endpoint, created_at 2023_08_28, performance_impact Low, confidence High, updated_at 2023_08_28, reviewed_at 2023_08_28, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1567, mitre_technique_name Exfiltration_Over_Web_Service

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 2b|"

  • Value: ".oast.site"

Within: 10

PCRE:

Special Options:

  • fast_pattern

source