Sigma Rule Library

Windows Internet Hosted WebDav Share Mount Via Net.EXE

Detects when an internet hosted webdav share is mounted using the "net.exe" utility

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Detection logic

selection_img

- Image|endswith:
    - \net.exe
    - \net1.exe
- OriginalFileName:
    - net.exe
    - net1.exe

selection_cli

CommandLine|contains|all:
  - " use "
  - " http"

Condition

all of selection_*

Raw YAML

title: Windows Internet Hosted WebDav Share Mount Via Net.EXE
id: 7e6237fe-3ddb-438f-9381-9bf9de5af8d0
status: test
description: Detects when an internet hosted webdav 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: 2023-02-21
modified: 2023-07-25
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|all:
            - ' use '
            - ' http'
    condition: all of selection_*
falsepositives:
    - Unknown
level: high

False positives

  • Unknown

References

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