Disable Powershell Command History

testhigh
log source: windows · ps_scriptauthor Ali Alwashalidate 2022-08-21
01

description

What this is, in brief.

Detects scripts or commands that disabled the Powershell command history by removing psreadline module

02

tags

attack.stealthattack.t1070.003
03

rule source (YAML)

title: Disable Powershell Command History
id: 602f5669-6927-4688-84db-0d4b7afb2150
status: test
description: Detects scripts or commands that disabled the Powershell command history by removing psreadline module
references:
    - https://twitter.com/DissectMalware/status/1062879286749773824
author: Ali Alwashali
date: 2022-08-21
tags:
    - attack.stealth
    - attack.t1070.003
logsource:
    product: windows
    category: ps_script
    definition: 'Requirements: Script Block Logging must be enabled'
detection:
    selection:
        ScriptBlockText|contains|all:
            - Remove-Module
            - psreadline
    condition: selection
falsepositives:
    - Legitimate script that disables the command history
level: high
04

detects techniques (1)

ATT&CK techniques this enables or maps to.

05

references

External citations — patches, advisories, analysis.