Potential MsiExec Masquerading

Description

Detects the execution of msiexec.exe from an uncommon directory

Query · sigma

selection:
- Image|endswith: \msiexec.exe
- OriginalFileName: \msiexec.exe
filter:
  Image|startswith:
  - C:\Windows\System32\
  - C:\Windows\SysWOW64\
  - C:\Windows\WinSxS\
condition: selection and not filter

Known false positives

  • Unknown
Raw source Potential MsiExec Masquerading · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: Potential MsiExec Masquerading
id: e22a6eb2-f8a5-44b5-8b44-a2dbd47b1144
status: test
description: Detects the execution of msiexec.exe from an uncommon directory
references:
    - https://twitter.com/200_okay_/status/1194765831911215104
author: Florian Roth (Nextron Systems)
date: 2019-11-14
modified: 2023-02-21
tags:
    - attack.stealth
    - attack.t1036.005
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - Image|endswith: '\msiexec.exe'
        - OriginalFileName: '\msiexec.exe'
    filter:
        Image|startswith:
            - 'C:\Windows\System32\'
            - 'C:\Windows\SysWOW64\'
            - 'C:\Windows\WinSxS\'
    condition: selection and not filter
falsepositives:
    - Unknown
level: high

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