sigmamediumHunting

Password Provided In Command Line Of Net.EXE

Detects a when net.exe is called with a password in the command line

MITRE ATT&CK

defense-evasioninitial-accesspersistenceprivilege-escalationlateral-movement

Detection Query

selection_img:
  - Image|endswith:
      - \net.exe
      - \net1.exe
  - OriginalFileName:
      - net.exe
      - net1.exe
selection_cli:
  CommandLine|contains|all:
    - " use "
    - :*\\
    - /USER:* *
filter_main_empty:
  CommandLine|endswith: " "
condition: all of selection_* and not 1 of filter_main_*

Author

Tim Shelton (HAWK.IO)

Created

2021-12-09

Data Sources

windowsProcess Creation Events

Platforms

windows

References

Internal Research

Tags

attack.defense-evasionattack.initial-accessattack.persistenceattack.privilege-escalationattack.lateral-movementattack.t1021.002attack.t1078

Raw Content

title: Password Provided In Command Line Of Net.EXE
id: d4498716-1d52-438f-8084-4a603157d131
status: test
description: Detects a when net.exe is called with a password in the command line
references:
    - Internal Research
author: Tim Shelton (HAWK.IO)
date: 2021-12-09
modified: 2023-02-21
tags:
    - attack.defense-evasion
    - attack.initial-access
    - attack.persistence
    - attack.privilege-escalation
    - attack.lateral-movement
    - attack.t1021.002
    - attack.t1078
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 '
            - ':*\\'
            - '/USER:* *'
    filter_main_empty:
        CommandLine|endswith: ' '
    condition: all of selection_* and not 1 of filter_main_*
falsepositives:
    - Unknown
level: medium