Enable Windows Remote Management

Status: test
Severity: medium
Log source: category ps_script, product windows
Author: frack113
Source: github.com/SigmaHQ/sigma

Adversaries may use Valid Accounts to interact with remote systems using Windows Remote Management (WinRM). The adversary may then perform actions as the logged-on user.

Known false positives

Legitimate script

MITRE ATT&CK coverage

Tactic	Techniques
Lateral Movement	`T1021.006` Remote Services: Windows Remote Management

Telemetry coverage

Provider	Record / event type
PowerShell	Event ID 4104: Creating Scriptblock text (MessageNumber of MessageTotal).

Rule body

title: Enable Windows Remote Management
id: 991a9744-f2f0-44f2-bd33-9092eba17dc3
status: test
description: Adversaries may use Valid Accounts to interact with remote systems using Windows Remote Management (WinRM). The adversary may then perform actions as the logged-on user.
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1021.006/T1021.006.md#atomic-test-1---enable-windows-remote-management
    - https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/enable-psremoting?view=powershell-7.2
author: frack113
date: 2022-01-07
tags:
    - attack.lateral-movement
    - attack.t1021.006
logsource:
    product: windows
    category: ps_script
    definition: 'Requirements: Script Block Logging must be enabled'
detection:
    selection_cmdlet:
        ScriptBlockText|contains: 'Enable-PSRemoting '
    condition: selection_cmdlet
falsepositives:
    - Legitimate script
level: medium

Stages and Predicates

Stage 0: `condition`

selection_cmdlet

Stage 1: `selection_cmdlet`

selection_cmdlet:
    ScriptBlockText|contains: 'Enable-PSRemoting '

Indicators

These rows show field, operator, and value matches.

Field	Kind	Values	Search
`ScriptBlockText`	match	`Enable-PSRemoting`	`field:"ScriptBlockText" kind:match value:"Enable-PSRemoting "`