Always Install Elevated MSI Spawned Cmd And Powershell

 1title: Always Install Elevated MSI Spawned Cmd And Powershell
 2id: 1e53dd56-8d83-4eb4-a43e-b790a05510aa
 3status: test
 4description: Detects Windows Installer service (msiexec.exe) spawning "cmd" or "powershell"
 5references:
 6    - https://image.slidesharecdn.com/kheirkhabarovoffzonefinal-181117201458/95/hunting-for-privilege-escalation-in-windows-environment-50-638.jpg
 7author: Teymur Kheirkhabarov (idea), Mangatas Tondang (rule), oscd.community
 8date: 2020-10-13
 9modified: 2022-10-20
10tags:
11    - attack.defense-evasion
12    - attack.privilege-escalation
13    - attack.t1548.002
14logsource:
15    product: windows
16    category: process_creation
17detection:
18    selection_img:
19        - Image|endswith:
20              - '\cmd.exe'
21              - '\powershell.exe'
22              - '\pwsh.exe'
23        - OriginalFileName:
24              - 'Cmd.Exe'
25              - 'PowerShell.EXE'
26              - 'pwsh.dll'
27    selection_parent:
28        ParentImage|contains|all:
29            - '\Windows\Installer\'
30            - 'msi'
31        ParentImage|endswith: 'tmp'
32    condition: all of selection_*
33fields:
34    - Image
35    - ParentImage
36falsepositives:
37    - Unknown
38level: medium