Query: Sigma YAML for windows / registry_set
Matching passage: Sigma rule: Detects a suspicious printer driver installation with an empty Manufacturer value. Logsource: windows / registry_set. Rule: title: Suspicious Printer Driver Empty Manufacturer id: e0813366-0407-449a-9869-a2db1119dc41 status: test description: Detects a suspicious printer driver installation with an empty Manufacturer value references: - https://twitter.com/SBousseaden/status/1410545674773467140 author: Florian Roth (Nextron Systems) date: 2020-07-01 modified: 2023-08-17 tags: - attack.persistence - attack.privilege-escalation - attack.execution - attack.stealth - attack.t1574 - cve.2021-1675 logsource: category: registry_set product: windows detection: selection: TargetObject|contains|all: - \Control\Print\Environments\Windows x64\Drivers - \Manufacturer Details: (Empty) filter_cutepdf: TargetObject|contains: \CutePDF Writer v4.0\ filter_vnc: TargetObject|contains: - \VNC Printer (PS)\ - \VNC Printer (UD)\ filter_pdf24: TargetObject|contains: \Version-3\PDF24\ condition: selection and not 1 of filter_* falsepositives: - Alerts on legitimate printer drivers that do not set any more details in the Manufacturer value level: high
Near-miss 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