legitimate use/activation of windows recall

Techniques

t1113

Sample rules

Windows Recall Feature Enabled - DisableAIDataAnalysis Value Deleted

source: sigma
technicques:
- t1113

Description

Detects the enabling of the Windows Recall feature via registry manipulation. Windows Recall can be enabled by deleting the existing “DisableAIDataAnalysis” registry value. 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.

Detection logic

condition: selection
selection:
  EventType: DeleteValue
  TargetObject|endswith: \Microsoft\Windows\WindowsAI\DisableAIDataAnalysis

Windows Recall Feature Enabled - Registry

source: sigma
technicques:
- t1113

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.

Detection logic

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

Windows Recall Feature Enabled Via Reg.EXE

source: sigma
technicques:
- t1113

Description

Detects the enabling of the Windows Recall feature via registry manipulation. Windows Recall can be enabled by deleting the existing “DisableAIDataAnalysis” value, or setting it 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.

Detection logic

condition: selection_img and selection_value and 1 of selection_action_*
selection_action_add:
  CommandLine|contains:
  - add
  - '0'
selection_action_delete:
  CommandLine|contains: delete
selection_img:
- Image|endswith: \reg.exe
- OriginalFileName: reg.exe
selection_value:
  CommandLine|contains|all:
  - Microsoft\Windows\WindowsAI
  - DisableAIDataAnalysis