# publicmosaic.sigma.yml — generated 2026-10-30 18:37 UTC — TLP:CLEAR
# source: https://publicmosaic.com — published for defensive use
# scope: asn 209373 — https://publicmosaic.com/asn/209373
# 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: 'AS209373 — connections to listed C2 hosts'
id: f90dcc54-786b-828a-952a-9cee3ae53999
status: experimental
description: 'Outbound connection to an address Public Mosaic listed as a C2 host when this file was generated.'
references:
  - 'https://publicmosaic.com/asn/209373'
author: 'Public Mosaic'
date: 2026-08-26
modified: 2026-10-30
tags:
  - attack.command_and_control
  - tlp.clear
logsource:
  category: network_connection
detection:
  selection_p443:
    DestinationIp:
      - 217.60.103.15
      - 217.60.103.31
      - 217.60.195.109
      - 217.60.195.139
      - 217.60.195.157
      - 217.60.195.193
      - 217.60.195.226
      - 217.60.195.25
      - 217.60.195.89
      - 31.56.209.139
      - 31.56.209.161
      - 31.56.209.245
      - 31.56.209.53
      - 31.56.209.55
    DestinationPort: 443
  selection_p1111:
    DestinationIp:
      - 217.60.195.157
      - 31.56.209.53
    DestinationPort: 1111
  selection_p4782:
    DestinationIp:
      - 217.60.195.25
    DestinationPort: 4782
  selection_p5353:
    DestinationIp:
      - 31.56.209.53
    DestinationPort: 5353
  selection_p6606:
    DestinationIp:
      - 217.60.102.37
      - 217.60.102.47
      - 217.60.103.15
      - 31.56.209.140
      - 31.56.209.82
    DestinationPort: 6606
  selection_p6767:
    DestinationIp:
      - 217.60.195.46
      - 31.56.209.46
    DestinationPort: 6767
  selection_p7707:
    DestinationIp:
      - 217.60.102.37
      - 217.60.102.47
      - 217.60.103.15
      - 31.56.209.140
      - 31.56.209.82
    DestinationPort: 7707
  selection_p8808:
    DestinationIp:
      - 217.60.102.37
      - 217.60.102.47
      - 217.60.103.15
      - 31.56.209.82
    DestinationPort: 8808
  selection_p17845:
    DestinationIp:
      - 217.60.195.85
    DestinationPort: 17845
  selection_p56001:
    DestinationIp:
      - 217.60.102.3
      - 217.60.102.74
      - 217.60.195.109
      - 217.60.195.160
      - 217.60.195.193
      - 217.60.195.25
      - 31.56.209.139
      - 31.56.209.140
      - 31.56.209.55
    DestinationPort: 56001
  selection_p56002:
    DestinationIp:
      - 217.60.102.3
      - 217.60.195.109
      - 217.60.195.160
      - 217.60.195.193
      - 217.60.195.25
      - 31.56.209.139
      - 31.56.209.140
      - 31.56.209.55
    DestinationPort: 56002
  selection_p56003:
    DestinationIp:
      - 217.60.103.15
      - 217.60.195.160
      - 217.60.195.193
      - 217.60.195.25
      - 31.56.209.139
      - 31.56.209.140
      - 31.56.209.196
      - 31.56.209.55
    DestinationPort: 56003
  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