PowerShell WMI Win32_Product MSI Installation via Invoke-CimMethod

Flags PowerShell using WMI Win32_Product via Invoke-CimMethod to invoke an MSI install.

FreeReviewedSigma · Medium · v2

Product: windows
Category: ps_script
Author: frack113 (SigmaHQ), DRL 1.1
Published: 2022-04-24
Updated: 2026-07-31

ATT&CK techniques

Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
- T1218.007Msiexec
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule flags PowerShell script block content that invokes the WMI Win32_Product class and calls a method that includes an .msi installation reference. Attackers can use WMI with Win32_Product to install software or trigger installation behavior using scripted execution. The detection relies on PowerShell script block logging telemetry and matches specific script text fragments indicating Invoke-CimMethod targeting Win32_Product and an MSI file string.

Reporting behind it

Related detections9 linkedT1218.007 — drag to rearrange

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Suspicious Raspberry Robin Msiexec Spawning a Proxy Binary (via process_creation)

Malicious Msiexec Installation of a Remote MSI Package (via process_creation)

Suspicious msiexec Remote Package Installation over HTTP

Malicious MSI Installation from Remote WebDAV Share via process_creation

Suspicious Msiexec Remote Package Installation from URL via Process Creation

PowerShell WMI Win32_Product MSI Installation via Invoke-CimMethod

Pivot detection · T1218.007 · 9 related

Changelog

v2
Candidate ingested via manual entry.2026-07-31
v1
No changelog recorded for this version.2026-07-30

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

powershell-wmi-win32-product-msi-installation-via-invoke-cimmethod-91109523

title: PowerShell WMI Win32_Product MSI Installation via Invoke-CimMethod
id: 6f024e79-bbd9-4185-b7cc-f2ea9566693e
status: test
description: This rule flags PowerShell script block content that invokes the WMI Win32_Product class and calls a method that includes an .msi installation reference. Attackers can use WMI with Win32_Product to install software or trigger installation behavior using scripted execution. The detection relies on PowerShell script block logging telemetry and matches specific script text fragments indicating Invoke-CimMethod targeting Win32_Product and an MSI file string.
references:
  - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1218.007/T1218.007.md
  - https://github.com/SigmaHQ/sigma/blob/master/rules/windows/powershell/powershell_script/posh_ps_win32_product_install_msi.yml
author: frack113, Huntrule Team
date: 2022-04-24
tags:
  - attack.stealth
  - attack.t1218.007
logsource:
  product: windows
  category: ps_script
  definition: "Requirements: Script Block Logging must be enabled"
detection:
  selection:
    ScriptBlockText|contains|all:
      - "Invoke-CimMethod "
      - "-ClassName "
      - "Win32_Product "
      - "-MethodName "
      - .msi
  condition: selection
falsepositives:
  - Unknown
level: medium
license: DRL-1.1
related:
  - id: 91109523-17f0-4248-a800-f81d9e7c081d
    type: derived

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