Detection rules › Sigma

Local User Creation

Status
test
Severity
low
Log source
product windows, service security
Author
Patrick Bareiss
Source
github.com/SigmaHQ/sigma

Detects local user creation on Windows servers, which shouldn't happen in an Active Directory environment. Apply this Sigma Use Case on your Windows server logs and not on your DC logs.

MITRE ATT&CK coverage

TacticTechniques
PersistenceT1136.001 Create Account: Local Account

Event coverage

ProviderEventTitle
Security-AuditingEvent ID 4720A user account was created.

Rule body yaml

title: Local User Creation
id: 66b6be3d-55d0-4f47-9855-d69df21740ea
status: test
description: |
    Detects local user creation on Windows servers, which shouldn't happen in an Active Directory environment. Apply this Sigma Use Case on your Windows server logs and not on your DC logs.
references:
    - https://patrick-bareiss.com/detecting-local-user-creation-in-ad-with-sigma/
author: Patrick Bareiss
date: 2019-04-18
modified: 2021-01-17
tags:
    - attack.persistence
    - attack.t1136.001
logsource:
    product: windows
    service: security
detection:
    selection:
        EventID: 4720
    condition: selection
falsepositives:
    - Domain Controller Logs
    - Local accounts managed by privileged account management tools
level: low

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    EventID: 4720