Sigma Rule Library

Installation of WSL Kali-Linux

Detects installation of Kali Linux distribution through Windows Subsystem for Linux (WSL). Attackers may use Kali Linux WSL to leverage its penetration testing tools and capabilities for malicious purposes.

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Detection logic

selection_wsl_img

- Image|endswith: \wsl.exe
- OriginalFileName: wsl

selection_wsl_install

CommandLine|contains:
  - " --install "
  - " -i "

selection_wsl_kali

CommandLine|contains: kali

Condition

all of selection_wsl_*

Raw YAML

title: Installation of WSL Kali-Linux
id: eca8ae39-5c3c-4321-b538-9e64fe25822e
status: experimental
description: |
    Detects installation of Kali Linux distribution through Windows Subsystem for Linux (WSL).
    Attackers may use Kali Linux WSL to leverage its penetration testing tools and capabilities for malicious purposes.
references:
    - https://medium.com/@redfanatic7/running-kali-linux-on-windows-51ad95166e6e
    - https://learn.microsoft.com/en-us/windows/wsl/install
author: Swachchhanda Shrawan Poudel (Nextron Systems)
date: 2025-10-10
tags:
    - attack.execution
    - attack.t1059
logsource:
    category: process_creation
    product: windows
detection:
    selection_wsl_img:
        - Image|endswith: '\wsl.exe'
        - OriginalFileName: 'wsl'
    selection_wsl_install:
        CommandLine|contains:
            - ' --install '
            - ' -i '
    selection_wsl_kali:
        CommandLine|contains: 'kali'
    condition: all of selection_wsl_*
falsepositives:
    - Legitimate installation or usage of Kali Linux WSL by administrators or security teams
level: high

False positives

  • Legitimate installation or usage of Kali Linux WSL by administrators or security teams

References

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