posh_pc_renamed_powershell.yml

title: Renamed Powershell Under Powershell Channel
id: 30a8cb77-8eb3-4cfb-8e79-ad457c5a4592
status: test
description: Detects renamed powershell
references:
    - https://speakerdeck.com/heirhabarov/hunting-for-powershell-abuse
author: Harish Segar, frack113
date: 2020/06/29
modified: 2023/10/27
tags:
    - attack.execution
    - attack.t1059.001
logsource:
    product: windows
    category: ps_classic_start
detection:
    selection:
        Data|contains: 'HostName=ConsoleHost'
    # Note: Powershell Logging Data is localized. Meaning that "HostApplication" field will be translated to a different field on a non english layout. This rule doesn't take this into account due to the sheer ammount of possibilities. It's up to the user to add these cases.
    filter_main_ps:
        Data|contains:
            - 'HostApplication=powershell'
            - 'HostApplication=C:\Windows\System32\WindowsPowerShell\v1.0\powershell'
            - 'HostApplication=C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell'
            # In some cases powershell was invoked with inverted slashes
            - 'HostApplication=C:/Windows/System32/WindowsPowerShell/v1.0/powershell'
            - 'HostApplication=C:/Windows/SysWOW64/WindowsPowerShell/v1.0/powershell'
    condition: selection and not 1 of filter_main_*
falsepositives:
    - Unknown
level: low