# publicmosaic.sigma.yml — generated 2026-10-30 19:07 UTC — TLP:CLEAR
# source: https://publicmosaic.com — published for defensive use
# scope: cert 9cde14aedc2a037c33dc001e87a1bb21d60ebc5659a15e35ce0be7d1b6b3c554 — https://publicmosaic.com/cert/9cde14aedc2a037c33dc001e87a1bb21d60ebc5659a15e35ce0be7d1b6b3c554
# 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 9cde14aedc2a037c… — connections to listed C2 hosts'
id: 23534cc6-f828-887f-8637-ec47d71ba3b7
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/9cde14aedc2a037c33dc001e87a1bb21d60ebc5659a15e35ce0be7d1b6b3c554'
author: 'Public Mosaic'
date: 2026-09-20
modified: 2026-10-30
tags:
  - attack.command_and_control
  - tlp.clear
logsource:
  category: network_connection
detection:
  selection_p443:
    DestinationIp:
      - 185.241.211.244
      - 193.26.115.5
      - 45.88.186.207
    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