sigmalowHunting

Windows Share Mount Via Net.EXE

Detects when a share is mounted using the "net.exe" utility

MITRE ATT&CK

lateral-movement

Detection Query

selection_img:
  - Image|endswith:
      - \net.exe
      - \net1.exe
  - OriginalFileName:
      - net.exe
      - net1.exe
selection_cli:
  CommandLine|contains:
    - " use "
    - " \\\\\\\\"
condition: all of selection_*

Author

Nasreddine Bencherchali (Nextron Systems)

Created

2023-02-02

Data Sources

windowsProcess Creation Events

Platforms

windows

References

https://drive.google.com/file/d/1lKya3_mLnR3UQuCoiYruO3qgu052_iS_/view

Tags

attack.lateral-movementattack.t1021.002

Raw Content

title: Windows Share Mount Via Net.EXE
id: f117933c-980c-4f78-b384-e3d838111165
related:
    - id: 3abd6094-7027-475f-9630-8ab9be7b9725
      type: similar
status: test
description: Detects when a share is mounted using the "net.exe" utility
references:
    - https://drive.google.com/file/d/1lKya3_mLnR3UQuCoiYruO3qgu052_iS_/view
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-02-02
modified: 2023-02-21
tags:
    - attack.lateral-movement
    - attack.t1021.002
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith:
              - '\net.exe'
              - '\net1.exe'
        - OriginalFileName:
              - 'net.exe'
              - 'net1.exe'
    selection_cli:
        CommandLine|contains:
            - ' use '
            - ' \\\\'
    condition: all of selection_*
falsepositives:
    - Legitimate activity by administrators and scripts
level: low