Jonhnathan
31 lines
838 B
YAML
31 lines
838 B
YAML
title: Clear PowerShell History
|
||
id: dfba4ce1-e0ea-495f-986e-97140f31af2d
|
||
status: experimental
|
||
description: Detects keywords that could indicate clearing PowerShell history
|
||
date: 2019/10/25
|
||
author: Ilyas Ochkov, oscd.community, Jonhnathan Ribeiro
|
||
references:
|
||
- https://gist.github.com/hook-s3c/7363a856c3cdbadeb71085147f042c1a
|
||
tags:
|
||
- attack.defense_evasion
|
||
- attack.t1070.003
|
||
- attack.t1146 # an old one
|
||
logsource:
|
||
product: windows
|
||
service: powershell
|
||
detection:
|
||
command:
|
||
- 'del'
|
||
- 'Set-PSReadlineOption'
|
||
- 'Remove-Item'
|
||
- 'rm'
|
||
selection_1:
|
||
- '(Get-PSReadlineOption).HistorySavePath'
|
||
selection_2:
|
||
- '–HistorySaveStyle'
|
||
- 'SaveNothing'
|
||
condition: command and (selection_1 or selection_2)
|
||
falsepositives:
|
||
- some PS-scripts
|
||
level: medium
|