IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

« Windows Subsystem for Linux Distribution Installed Windows System Information Discovery »

› › ›

Windows Subsystem for Linux Enabled via Dism Utility

edit

Windows Subsystem for Linux Enabled via Dism Utility

edit

Detects attempts to enable the Windows Subsystem for Linux using Microsoft Dism utility. Adversaries may enable and use WSL for Linux to avoid detection.

Rule type: eql

Rule indices:

winlogbeat-*
logs-endpoint.events.*
logs-windows.*
endgame-*

Severity: medium

Risk score: 47

Runs every: 5m

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

https://blog.f-secure.com/hunting-for-windows-subsystem-for-linux/

Tags:

Domain: Endpoint
OS: Windows
Use Case: Threat Detection
Tactic: Defense Evasion
Data Source: Elastic Endgame
Data Source: Elastic Defend

Version: 4

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

edit

process where host.os.type == "windows" and event.type : "start" and
 (process.name : "Dism.exe" or process.pe.original_file_name == "DISM.EXE") and
 process.command_line : "*Microsoft-Windows-Subsystem-Linux*"

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
Technique:
- Name: Indirect Command Execution
- ID: T1202
- Reference URL: https://attack.mitre.org/techniques/T1202/

« Windows Subsystem for Linux Distribution Installed Windows System Information Discovery »