Windows Recall Feature Enabled - Registry

Status: test
Severity: medium
Log source: category registry_set, product windows
Author: Sajid Nawaz Khan
Source: github.com/SigmaHQ/sigma

Detects the enabling of the Windows Recall feature via registry manipulation. Windows Recall can be enabled by setting the value of "DisableAIDataAnalysis" to "0". Adversaries may enable Windows Recall as part of post-exploitation discovery and collection activities. This rule assumes that Recall is already explicitly disabled on the host, and subsequently enabled by the adversary.

Known false positives

Legitimate use/activation of Windows Recall

MITRE ATT&CK coverage

Tactic	Techniques
Collection	`T1113` Screen Capture

Telemetry coverage

Provider	Record / event type
Sysmon	Event ID 13: RegistryEvent (Value Set)

Rule body

title: Windows Recall Feature Enabled - Registry
id: 75180c5f-4ea1-461a-a4f6-6e4700c065d4
related:
    - id: 5dfc1465-8f65-4fde-8eb5-6194380c6a62
      type: similar
    - id: 817f252c-5143-4dae-b418-48c3e9f63728
      type: similar
status: test
description: |
    Detects the enabling of the Windows Recall feature via registry manipulation. Windows Recall can be enabled by setting the value of "DisableAIDataAnalysis" to "0".
    Adversaries may enable Windows Recall as part of post-exploitation discovery and collection activities.
    This rule assumes that Recall is already explicitly disabled on the host, and subsequently enabled by the adversary.
references:
    - https://learn.microsoft.com/en-us/windows/client-management/manage-recall
    - https://learn.microsoft.com/en-us/windows/client-management/mdm/policy-csp-windowsai#disableaidataanalysis
author: Sajid Nawaz Khan
date: 2024-06-02
tags:
    - attack.collection
    - attack.t1113
logsource:
    category: registry_set
    product: windows
detection:
    selection:
        # HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\WindowsAI\DisableAIDataAnalysis
        # HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsAI\DisableAIDataAnalysis
        TargetObject|endswith: '\Software\Policies\Microsoft\Windows\WindowsAI\DisableAIDataAnalysis'
        Details: 'DWORD (0x00000000)'
    condition: selection
falsepositives:
    - Legitimate use/activation of Windows Recall
level: medium

Stages and Predicates

Stage 0: `condition`

selection

Stage 1: `selection`

selection:
    TargetObject|endswith: '\Software\Policies\Microsoft\Windows\WindowsAI\DisableAIDataAnalysis'
    Details: 'DWORD (0x00000000)'

Indicators

These rows show field, operator, and value matches.

Field	Kind	Values	Search
`Details`	eq	`DWORD (0x00000000)` corpus 38 (sigma 36, chronicle 2)	`field:"Details" kind:eq value:"DWORD (0x00000000)"`
`TargetObject`	ends_with	`\Software\Policies\Microsoft\Windows\WindowsAI\DisableAIDataAnalysis`	`field:"TargetObject" kind:ends_with value:"\Software\Policies\Microsoft\Windows\WindowsAI\DisableAIDataAnalysis"`