# publicmosaic.sigma.yml — generated 2026-10-30 18:37 UTC — TLP:CLEAR
# source: https://publicmosaic.com — published for defensive use
# scope: cert ea90b53532c6fdbdfe121202ea3ecfe73592e69a4391b1d853fa578b83fb77cd — https://publicmosaic.com/cert/ea90b53532c6fdbdfe121202ea3ecfe73592e69a4391b1d853fa578b83fb77cd
# 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 ea90b53532c6fdbd… — connections to listed C2 hosts'
id: ba3dac37-932e-8abe-a022-6c2ae55ae3a2
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/ea90b53532c6fdbdfe121202ea3ecfe73592e69a4391b1d853fa578b83fb77cd'
author: 'Public Mosaic'
date: 2026-08-26
modified: 2026-10-30
tags:
  - attack.command_and_control
  - tlp.clear
logsource:
  category: network_connection
detection:
  selection_p7443:
    DestinationIp:
      - 13.215.47.248
      - 154.198.49.31
      - 45.192.169.57
      - 45.192.169.58
    DestinationPort: 7443
  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