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sigmamediumHunting

Always Install Elevated MSI Spawned Cmd And Powershell

Detects Windows Installer service (msiexec.exe) spawning "cmd" or "powershell"

MITRE ATT&CK

T1548.002
defense-evasionprivilege-escalation

Detection Query

selection_img:
  - Image|endswith:
      - \cmd.exe
      - \powershell.exe
      - \pwsh.exe
  - OriginalFileName:
      - Cmd.Exe
      - PowerShell.EXE
      - pwsh.dll
selection_parent:
  ParentImage|contains|all:
    - \Windows\Installer\
    - msi
  ParentImage|endswith: tmp
condition: all of selection_*

Author

Teymur Kheirkhabarov (idea), Mangatas Tondang (rule), oscd.community

Created

2020-10-13

Data Sources

windowsProcess Creation Events

Platforms

windows

References

Tags

attack.defense-evasionattack.privilege-escalationattack.t1548.002
Raw Content
title: Always Install Elevated MSI Spawned Cmd And Powershell
id: 1e53dd56-8d83-4eb4-a43e-b790a05510aa
status: test
description: Detects Windows Installer service (msiexec.exe) spawning "cmd" or "powershell"
references:
    - https://image.slidesharecdn.com/kheirkhabarovoffzonefinal-181117201458/95/hunting-for-privilege-escalation-in-windows-environment-50-638.jpg
author: Teymur Kheirkhabarov (idea), Mangatas Tondang (rule), oscd.community
date: 2020-10-13
modified: 2022-10-20
tags:
    - attack.defense-evasion
    - attack.privilege-escalation
    - attack.t1548.002
logsource:
    product: windows
    category: process_creation
detection:
    selection_img:
        - Image|endswith:
              - '\cmd.exe'
              - '\powershell.exe'
              - '\pwsh.exe'
        - OriginalFileName:
              - 'Cmd.Exe'
              - 'PowerShell.EXE'
              - 'pwsh.dll'
    selection_parent:
        ParentImage|contains|all:
            - '\Windows\Installer\'
            - 'msi'
        ParentImage|endswith: 'tmp'
    condition: all of selection_*
falsepositives:
    - Unknown
level: medium