title: Net.exe Execution
author: Michael Haag, Mark Woan (improvements), James Pemberton / @4A616D6573 / oscd.community
    (improvements)
date: 2019/01/16
description: Detects execution of Net.exe, whether suspicious or benign.
detection:
    SELECTION_1:
        EventID: 1
    SELECTION_10:
        CommandLine: '* stop *'
    SELECTION_2:
        Image: '*\net.exe'
    SELECTION_3:
        Image: '*\net1.exe'
    SELECTION_4:
        CommandLine: '* group*'
    SELECTION_5:
        CommandLine: '* localgroup*'
    SELECTION_6:
        CommandLine: '* user*'
    SELECTION_7:
        CommandLine: '* view*'
    SELECTION_8:
        CommandLine: '* share*'
    SELECTION_9:
        CommandLine: '* accounts*'
    condition: (SELECTION_1 and (SELECTION_2 or SELECTION_3) and (SELECTION_4 or SELECTION_5
        or SELECTION_6 or SELECTION_7 or SELECTION_8 or SELECTION_9 or SELECTION_10))
falsepositives:
- Will need to be tuned. If using Splunk, I recommend | stats count by Computer,CommandLine
    following the search for easy hunting by computer/CommandLine.
fields:
- ComputerName
- User
- CommandLine
- ParentCommandLine
id: 183e7ea8-ac4b-4c23-9aec-b3dac4e401ac
level: low
logsource:
    category: process_creation
    product: windows
modified: 2020/11/28
references:
- https://pentest.blog/windows-privilege-escalation-methods-for-pentesters/
- https://eqllib.readthedocs.io/en/latest/analytics/4d2e7fc1-af0b-4915-89aa-03d25ba7805e.html
- https://eqllib.readthedocs.io/en/latest/analytics/e61f557c-a9d0-4c25-ab5b-bbc46bb24deb.html
- https://eqllib.readthedocs.io/en/latest/analytics/9b3dd402-891c-4c4d-a662-28947168ce61.html
status: experimental
tags:
- attack.discovery
- attack.t1049
- attack.t1018
- attack.t1135
- attack.t1201
- attack.t1069.001
- attack.t1069.002
- attack.t1087.001
- attack.t1087.002
- attack.lateral_movement
- attack.t1021.002
- attack.t1077
- attack.s0039
yml_filename: win_susp_net_execution.yml
yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/process_creation