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Detection rules › Sigma

UAC Disabled

Status
stable
Severity
medium
Log source
category registry_set, product windows
Author
frack113
Source
github.com/SigmaHQ/sigma

Detects when an attacker tries to disable User Account Control (UAC) by setting the registry value "EnableLUA" to 0.

MITRE ATT&CK coverage

TacticTechniques
Privilege Escalation

Telemetry coverage

ProviderRecord / event type
SysmonEvent ID 13: RegistryEvent (Value Set)

Rule body

title: UAC Disabled
id: 48437c39-9e5f-47fb-af95-3d663c3f2919
related:
    - id: c5f6a85d-b647-40f7-bbad-c10b66bab038
      type: similar
    - id: 0d7ceeef-3539-4392-8953-3dc664912714
      type: similar
status: stable
description: |
    Detects when an attacker tries to disable User Account Control (UAC) by setting the registry value "EnableLUA" to 0.
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/7e11e9b79583545f208a6dc3fa062f2ed443d999/atomics/T1548.002/T1548.002.md
author: frack113
date: 2022-01-05
modified: 2024-05-10
tags:
    - attack.privilege-escalation
    - attack.t1548.002
logsource:
    category: registry_set
    product: windows
detection:
    selection:
        TargetObject|contains: '\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA'
        Details: 'DWORD (0x00000000)'
    condition: selection
falsepositives:
    - Unknown
level: medium

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    TargetObject|contains: '\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA'
    Details: 'DWORD (0x00000000)'

Indicators

These rows show field, operator, and value matches.

FieldKindValuesSearch
Detailseq
  • DWORD (0x00000000) corpus 38 (sigma 36, chronicle 2)
field:"Details" kind:eq value:"DWORD (0x00000000)"
TargetObjectmatch
  • \Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA
field:"TargetObject" kind:match value:"\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA"