title: Alternate PowerShell Hosts
author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)
date: 2019/09/12
description: Detects alternate PowerShell hosts potentially bypassing detections looking
    for powershell.exe
detection:
    SELECTION_1:
        EventID: 7
    SELECTION_2:
        Description: System.Management.Automation
    SELECTION_3:
        ImageLoaded: '*System.Management.Automation*'
    SELECTION_4:
        Image: '*\powershell.exe'
    condition: (SELECTION_1 and (SELECTION_2 and SELECTION_3) and  not (SELECTION_4))
falsepositives:
- Unknown
id: fe6e002f-f244-4278-9263-20e4b593827f
level: medium
logsource:
    category: image_load
    product: windows
modified: 2021/05/12
references:
- https://threathunterplaybook.com/notebooks/windows/02_execution/WIN-190815181010.html
status: experimental
tags:
- attack.execution
- attack.t1059.001
yml_filename: sysmon_alternate_powershell_hosts_moduleload.yml
yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/image_load