Query: detection rule: Detects GitHub self-hosted runners executing workflows on local infrastructure that could be abused for persistence and
Matching passage: Sigma rule: Detects GitHub self-hosted runners executing workflows on local infrastructure that could be abused for persistence and. Logsource: windows / process_creation. Rule: title: Github Self-Hosted Runner Execution id: 5bac7a56-da88-4c27-922e-c81e113b20cb status: test description: 'Detects GitHub self-hosted runners executing workflows on local infrastructure that could be abused for persistence and code execution. Shai-Hulud is an npm supply chain worm targeting CI/CD environments. It installs runners on compromised systems to maintain access after credential theft, leveraging their access to secrets and internal networks. ' references: - https://about.gitlab.com/blog/gitlab-discovers-widespread-npm-supply-chain-attack/ - https://securitylabs.datadoghq.com/articles/shai-hulud-2.0-npm-worm/ author: Daniel Koifman (KoifSec) date: 2025-11-29 tags: - attack.command-and-control - attack.t1102.002 - attack.t1071 logsource: category: process_creation product: windows detection: selection_worker_img: - Image|endswith: \Runner.Worker.exe - OriginalFileName: Runner.Worker.dll selection_worker_cli: CommandLine|contains: spawnclient selection_listener_img: - Image|endswith: \Runner.Listener.exe - OriginalFileName: Runner.Listener.dll selection_listener_cli: CommandLine|contains: - run - configure condition: all of selection_worker_* or all of selection_listener_* falsepositives: - Legitimate GitHub self-hosted runner installations on designated CI/CD infrastructure - Authorized runner deployments by DevOps/Platform teams following change management - Scheduled runner updates or reconfigurations on existing build agents - Self-hosted runners that follow expected/known naming patterns - Installation via expected/known configuration management tools (reflected mostly as parent process name) level: medium regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_github_self_hosted_runner/info.yml
Near-miss passage: Sigma rule: Detects child processes of Microsoft.NodejsTools.PressAnyKey.exe that can be used to execute any other binary. Logsource: windows / process_creation. Rule: title: Visual Studio NodejsTools PressAnyKey Arbitrary Binary Execution id: a20391f8-76fb-437b-abc0-dba2df1952c6 related: - id: 65c3ca2c-525f-4ced-968e-246a713d164f type: similar status: test description: Detects child processes of Microsoft.NodejsTools.PressAnyKey.exe that can be used to execute any other binary references: - https://twitter.com/mrd0x/status/1463526834918854661 - https://gist.github.com/nasbench/a989ce64cefa8081bd50cf6ad8c491b5 author: Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems) date: 2022-01-11 modified: 2023-04-11 tags: - attack.execution - attack.stealth - attack.t1218 logsource: category: process_creation product: windows detection: selection: ParentImage|endswith: \Microsoft.NodejsTools.PressAnyKey.exe condition: selection falsepositives: - Legitimate use by developers as part of NodeJS development with Visual Studio Tools level: medium