name: AN-DET-09 Downlink interception disclosure monitor
details: |
  Downlink interception is largely passive and not directly observable at the platform. This
  signature watches for follow-on disclosure of intercepted content rather than the interception
  itself. Monitors OSINT collection and threat-intel feeds for mentions of mission-product data,
  identifiers, or characteristic patterns. Coverage is a Gap: primary mitigation is end-to-end
  downlink encryption (AN-RES:09). Implements AN-DET:09.
author: ethicallyHackingSpace
severity: medium
type: external_watch
class: disclosure_monitoring
status: experimental
date: 2026-06-07
mitre-attack:
  - T1040
references:
  - https://sparta.aerospace.org/technique/SPACE-T1427
tags:
  - meteorstorm.an-det.09
  - meteorstorm.tdm.osint
  - sparta.SPACE-T1427
  - coverage.gap
logsource:
  product: external_intel_feeds
  category: text_monitoring
detection:
  selection_mission_identifier_mention:
    feed_content|contains:
      - "<MISSION_CALL_SIGN>"
      - "<PROGRAM_CODENAME>"
      - "<NORAD_ID>"
  selection_characteristic_pattern:
    feed_content|matches_pattern_set: "downlink-signature-patterns"
  condition: selection_mission_identifier_mention or selection_characteristic_pattern
falsepositives:
  - Public release of mission data through approved channels