Query: Sigma rule for Detects the execution of PowerShell commands that attempt to install MSI packages via the Windows Installer COM object (
Matching passage: Sigma rule: Detects the execution of PowerShell commands that attempt to install MSI packages via the Windows Installer COM object (. Logsource: windows / process_creation. Rule: title: PowerShell MSI Install via WindowsInstaller COM From Remote Location id: 222720a7-047f-4054-baa5-bab9be757db0 status: experimental description: 'Detects the execution of PowerShell commands that attempt to install MSI packages via the Windows Installer COM object (`WindowsInstaller.Installer`) hosted remotely. This could be indication of malicious software deployment or lateral movement attempts using Windows Installer functionality. And the usage of WindowsInstaller COM object rather than msiexec could be an attempt to bypass the detection. ' references: - https://informationsecuritybuzz.com/the-real-danger-behind-a-simple-windows-shortcut/ - https://redcanary.com/blog/threat-intelligence/intelligence-insights-may-2025/ - https://www.virustotal.com/gui/file/f9710b0ba4de5fa0e7ec27da462d4d2fc6838eba83a19f23f6617a466bbad457 author: Meroujan Antonyan (vx3r) date: 2025-06-05 tags: - attack.execution - attack.stealth - attack.t1059.001 - attack.t1218 - attack.command-and-control - attack.t1105 logsource: category: process_creation product: windows detection: selection_img: - Image|endswith: - \powershell_ise.exe - \powershell.exe - \pwsh.exe - OriginalFileName: - PowerShell_ISE.EXE - PowerShell.EXE - pwsh.dll selection_cli: CommandLine|contains|all: - -ComObject - InstallProduct( selection_remote: CommandLine|contains: - http - \\\\ filter_main_localhost: CommandLine|contains: - ://127.0.0.1 - ://localhost condition: all of selection_* and not 1 of filter_main_* falsepositives: - Unknown level: medium
Near-miss passage: Sigma rule: Dependabot performs a scan to detect insecure dependencies, and sends Dependabot alerts. This rule detects when an organ. Logsource: github / audit. Rule: title: Outdated Dependency Or Vulnerability Alert Disabled id: 34e1c7d4-0cd5-419d-9f1b-1dad3f61018d status: test description: 'Dependabot performs a scan to detect insecure dependencies, and sends Dependabot alerts. This rule detects when an organization owner disables Dependabot alerts private repositories or Dependabot security updates for all repositories. ' author: Muhammad Faisal (@faisalusuf) date: 2023-01-27 references: - https://docs.github.com/en/code-security/dependabot/dependabot-alerts/about-dependabot-alerts - https://docs.github.com/en/organizations/keeping-your-organization-secure/managing-security-settings-for-your-organization/managing-security-and-analysis-settings-for-your-organization tags: - attack.initial-access - attack.t1195.001 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: - dependabot_alerts_new_repos.disable - dependabot_alerts.disable - dependabot_security_updates_new_repos.disable - dependabot_security_updates.disable - repository_vulnerability_alerts.disable condition: selection falsepositives: - Approved changes by the Organization owner. Please validate the 'actor' if authorized to make the changes. level: high