# publicmosaic.sigma.yml — generated 2026-10-30 18:37 UTC — TLP:CLEAR
# source: https://publicmosaic.com — published for defensive use
# scope: asn 197170 — https://publicmosaic.com/asn/197170
# 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: 'AS197170 — connections to listed C2 hosts'
id: b59d1101-c3cb-8b6d-adcf-c67425213cf6
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/197170'
author: 'Public Mosaic'
date: 2026-08-23
modified: 2026-10-30
tags:
  - attack.command_and_control
  - tlp.clear
logsource:
  category: network_connection
detection:
  selection_p443:
    DestinationIp:
      - 91.92.40.209
      - 91.92.47.99
    DestinationPort: 443
  selection_p4782:
    DestinationIp:
      - 45.153.34.146
    DestinationPort: 4782
  selection_p4838:
    DestinationIp:
      - 91.92.40.138
    DestinationPort: 4838
  selection_p5173:
    DestinationIp:
      - 45.156.87.201
      - 85.11.167.86
      - 91.92.40.92
    DestinationPort: 5173
  selection_p7080:
    DestinationIp:
      - 93.152.221.227
    DestinationPort: 7080
  selection_p7443:
    DestinationIp:
      - 93.152.221.227
    DestinationPort: 7443
  selection_p8285:
    DestinationIp:
      - 45.153.34.79
    DestinationPort: 8285
  selection_p8443:
    DestinationIp:
      - 85.11.167.9
    DestinationPort: 8443
  selection_p37773:
    DestinationIp:
      - 91.92.47.160
    DestinationPort: 37773
  selection_p61443:
    DestinationIp:
      - 45.153.34.164
    DestinationPort: 61443
  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
---
title: 'AS197170 — beacon URI or user agent in a request to a listed host'
id: 7ffed659-6093-8080-b3a1-f6db13eca931
status: experimental
description: 'A request to a listed address carrying a URI or user agent from a configuration recovered for these hosts. Both conditions are required: either value alone is common.'
references:
  - 'https://publicmosaic.com/asn/197170'
author: 'Public Mosaic'
date: 2026-08-23
modified: 2026-10-30
tags:
  - attack.command_and_control
  - tlp.clear
logsource:
  category: proxy
detection:
  selection_dst:
    DestinationIp:
      - 45.153.34.146
      - 45.153.34.164
      - 45.153.34.79
      - 45.156.87.201
      - 85.11.167.86
      - 85.11.167.9
      - 91.92.40.138
      - 91.92.40.209
      - 91.92.40.92
      - 91.92.47.160
      - 91.92.47.99
      - 93.152.221.227
  selection_uri:
    c-uri|contains:
      - '/api/v1/events'
      - '/ca'
      - '/cdn/assets/app.min.js'
      - '/submit.php'
  selection_ua:
    c-useragent:
      - 'Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0)'
      - 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.6613.119 Safari/537.36'
  condition: selection_dst and (selection_uri or selection_ua)
falsepositives:
  - 'A benign request to a listed address carrying a commodity user agent'
level: high