title: Network Connection Initiated To DevTunnels Domain
id: 9501f8e6-8e3d-48fc-a8a6-1089dd5d7ef4
related:
    - id: 4b657234-038e-4ad5-997c-4be42340bce4 # Net Connection VsCode
      type: similar
    - id: b3e6418f-7c7a-4fad-993a-93b65027a9f1 # DNS VsCode
      type: similar
    - id: 1cb0c6ce-3d00-44fc-ab9c-6d6d577bf20b # DNS DevTunnels
      type: similar
status: test
description: |
    Detects network connections to Devtunnels domains initiated by a process on a system. Attackers can abuse that feature to establish a reverse shell or persistence on a machine.
references:
    - https://blueteamops.medium.com/detecting-dev-tunnels-16f0994dc3e2
    - https://learn.microsoft.com/en-us/azure/developer/dev-tunnels/security
    - https://cydefops.com/devtunnels-unleashed
author: Kamran Saifullah
date: 2023-11-20
tags:
    - attack.exfiltration
    - attack.command-and-control
    - attack.t1567.001
    - attack.t1572
logsource:
    category: network_connection
    product: windows
detection:
    selection:
        Initiated: 'true'
        DestinationHostname|endswith: '.devtunnels.ms'
    condition: selection
falsepositives:
    - Legitimate use of Devtunnels will also trigger this.
level: medium

title: GitHub Repository Pages Site Changed to Public
id: 0c46d4f4-a2bf-4104-9597-8d653fc2bb55
status: experimental
description: |
    Detects when a GitHub Pages site of a repository is made public. This usually is part of a publishing process but could indicate or lead to potential unauthorized exposure of sensitive information or code.
references:
    - https://docs.github.com/en/pages/getting-started-with-github-pages/creating-a-github-pages-site
    - https://www.sentinelone.com/blog/exploiting-repos-6-ways-threat-actors-abuse-github-other-devops-platforms
    - https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/security-log-events
author: Ivan Saakov
date: 2025-10-18
tags:
    - attack.collection
    - attack.exfiltration
    - attack.t1567.001
logsource:
    product: github
    service: audit
detection:
    selection:
        action: 'repo.pages_public'
    condition: selection
falsepositives:
    - Legitimate publishing of repository pages by authorized users
level: low