# publicmosaic.sigma.yml — generated 2026-10-30 18:37 UTC — TLP:CLEAR
# source: https://publicmosaic.com — published for defensive use
# scope: cert 1d9879966f92c1d970bc04d042ad5c950b7dc890217f53220f49fcd584d066ee — https://publicmosaic.com/cert/1d9879966f92c1d970bc04d042ad5c950b7dc890217f53220f49fcd584d066ee
# covers listed listeners only; archived listings omitted: 0
# A withdrawal can take up to five minutes to reach this file. Each address's page under publicmosaic.com/ip/ is authoritative.
title: 'Certificate 1d9879966f92c1d9… — connections to listed C2 hosts'
id: 2b868d30-2a38-815f-ba67-86c55c7b0373
status: experimental
description: 'Outbound connection to an address Public Mosaic listed as a C2 host when this file was generated.'
references:
  - 'https://publicmosaic.com/cert/1d9879966f92c1d970bc04d042ad5c950b7dc890217f53220f49fcd584d066ee'
author: 'Public Mosaic'
date: 2026-08-29
modified: 2026-10-30
tags:
  - attack.command_and_control
  - tlp.clear
logsource:
  category: network_connection
detection:
  selection_p443:
    DestinationIp:
      - 103.249.106.26
      - 103.249.106.27
      - 103.249.106.28
    DestinationPort: 443
  condition: 1 of selection_*
falsepositives:
  - 'Shared hosting: an address can later serve other tenants. Its host page shows whether it is still listed.'
level: high