Password Provided In Command Line Of Net.EXE — Sigma Rule

Rule metadata and linked tags

Author: Tim Shelton (HAWK.IO). Source status: test; severity: medium. Source dates: 2021-12-09 / 2023-02-21.

{
  "category": "process_creation",
  "product": "windows"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 2da267880cee50e317dbe0590b47d5761fb57bafb2a53c0cc1e75393d99c650a

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

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.initial-access
    - attack.persistence
    - attack.privilege-escalation
    - attack.lateral-movement
    - attack.stealth
    - 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

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• Internal Research (source note; no public URL supplied)