Sigma rule: Always Install Elevated MSI Spawned Cmd And Powershell

Rule

Title

Always Install Elevated MSI Spawned Cmd And Powershell

Status

test

Level

medium

Author

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

Date

2020-10-13

Modified

2022-10-20

File

rules/windows/process_creation/proc_creation_win_susp_elavated_msi_spawned_shell.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

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

Log source

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_*

False positives (as the rule lists them)

• Unknown

Tags

• attack.privilege-escalation
• attack.t1548.002

MITRE ATT&CK ids this rule names

• T1548.002

References

• https://image.slidesharecdn.com/kheirkhabarovoffzonefinal-181117201458/95/hunting-for-privilege-escalation-in-windows-environment-50-638.jpg

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_susp_elavated_msi_spawned_shell.yml