title: Indirect Command Execution By Program Compatibility Wizard
author: A. Sungurov , oscd.community
date: 2020/10/12
description: Detect indirect command execution via Program Compatibility Assistant
    pcwrun.exe
detection:
    SELECTION_1:
        EventID: 1
    SELECTION_2:
        ParentImage: '*\pcwrun.exe'
    condition: (SELECTION_1 and SELECTION_2)
falsepositives:
- Need to use extra processing with 'unique_count' / 'filter' to focus on outliers
    as opposed to commonly seen artifacts
- Legit usage of scripts
fields:
- ComputerName
- User
- ParentCommandLine
- CommandLine
id: b97cd4b1-30b8-4a9d-bd72-6293928d52bc
level: low
logsource:
    category: process_creation
    product: windows
references:
- https://twitter.com/pabraeken/status/991335019833708544
- https://lolbas-project.github.io/lolbas/Binaries/Pcwrun/
status: experimental
tags:
- attack.defense_evasion
- attack.t1218
- attack.execution
yml_filename: win_indirect_cmd_compatibility_assistant.yml
yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/process_creation