Query: detection rule: A self-hosted runner is a system that you deploy and manage to execute jobs from GitHub Actions on GitHub.com. This rule
Matching passage: Sigma rule: A self-hosted runner is a system that you deploy and manage to execute jobs from GitHub Actions on GitHub.com. This rule. Logsource: github / audit. Rule: title: Github Self Hosted Runner Changes Detected id: f8ed0e8f-7438-4b79-85eb-f358ef2fbebd status: test description: 'A self-hosted runner is a system that you deploy and manage to execute jobs from GitHub Actions on GitHub.com. This rule detects changes to self-hosted runners configurations in the environment. The self-hosted runner configuration changes once detected, it should be validated from GitHub UI because the log entry may not provide full context. ' author: Muhammad Faisal (@faisalusuf) date: 2023-01-27 references: - https://docs.github.com/en/actions/hosting-your-own-runners/about-self-hosted-runners#about-self-hosted-runners - https://docs.github.com/en/organizations/keeping-your-organization-secure/managing-security-settings-for-your-organization/reviewing-the-audit-log-for-your-organization#search-based-on-operation tags: - attack.impact - attack.discovery - attack.collection - attack.persistence - attack.privilege-escalation - attack.initial-access - attack.stealth - attack.t1526 - attack.t1213.003 - attack.t1078.004 logsource: product: github service: audit definition: 'Requirements: The audit log streaming feature must be enabled to be able to receive such logs. You can enable following the documentation here: https://docs.github.com/en/enterprise-cloud@latest/admin/monitoring-activity-in-your-enterprise/reviewing-audit-logs-for-your-enterprise/streaming-the-audit-log-for-your-enterprise#setting-up-audit-log-streaming' detection: selection: action: - org.remove_self_hosted_runner - org.runner_group_created - org.runner_group_removed - org.runner_group_runner_removed - org.runner_group_runners_added - org.runner_group_runners_updated - org.runner_group_updated - repo.register_self_hosted_runner - repo.remove_self_hosted_runner condition: selection falsepositives: - Allowed self-hosted runners changes in the environment. - A self-hosted runner is automatically removed from GitHub if it has not connected to GitHub Actions for more than 14 days. - An ephemeral self-hosted runner is automatically removed from GitHub if it has not connected to GitHub Actions for more than 1 day. level: low
Near-miss passage: Sigma rule: Remote.exe is part of WinDbg in the Windows SDK and can be used for AWL bypass and running remote files.. Logsource: windows / process_creation. Rule: title: Use of Remote.exe id: 4eddc365-79b4-43ff-a9d7-99422dc34b93 status: test description: Remote.exe is part of WinDbg in the Windows SDK and can be used for AWL bypass and running remote files. references: - https://blog.thecybersecuritytutor.com/Exeuction-AWL-Bypass-Remote-exe-LOLBin/ - https://lolbas-project.github.io/lolbas/OtherMSBinaries/Remote/ author: Christopher Peacock @SecurePeacock, SCYTHE @scythe_io date: 2022-06-02 tags: - attack.execution - attack.stealth - attack.t1127 logsource: category: process_creation product: windows detection: selection: - Image|endswith: \remote.exe - OriginalFileName: remote.exe condition: selection falsepositives: - Approved installs of Windows SDK with Debugging Tools for Windows (WinDbg). level: medium