title: Suspicious Msiexec Quiet Install
id: 79a87aa6-e4bd-42fc-a5bb-5e6fbdcd62f5
status: experimental
description: |
  Adversaries may abuse msiexec.exe to proxy execution of malicious payloads.
  Msiexec.exe is the command-line utility for the Windows Installer and is thus commonly associated with executing installation packages (.msi)
author: frack113
date: 2022/01/16
references:
    - https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/msiexec
    - https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1218.007/T1218.007.md
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith: '\msiexec.exe' 
        CommandLine|contains|all:
            - ' /i'
            - ' /q'
    condition: selection
falsepositives:
    - Legitim script
level: low
tags:
    - attack.defense_evasion
    - attack.t1218.007
