Microsoft Office Protected View Disabled

Title: Microsoft Office Protected View Disabled
Status: test
Description:Detects changes to Microsoft Office protected view registry keys with which the attacker disables this feature.
References:
  -https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1562.001/T1562.001.md
  -https://unit42.paloaltonetworks.com/unit42-gorgon-group-slithering-nation-state-cybercrime/
  -https://yoroi.company/research/cyber-criminal-espionage-operation-insists-on-italian-manufacturing/
  -https://admx.help/HKCU/software/policies/microsoft/office/16.0/excel/security/protectedview
Author: frack113, Nasreddine Bencherchali (Nextron Systems)
Date: 2021-06-08
modified:2023-08-17
Tags:

• -'attack.defense-impairment'
• -'attack.t1685'

Logsource:

• product: windows
• category: registry_set

Detection:
  selection_path:
    TargetObject|contains|all:
      -'\SOFTWARE\Microsoft\Office\'
      -'\Security\ProtectedView\'

  selection_values_1:
    Details: 'DWORD (0x00000001)'
    TargetObject|endswith:
      -'\DisableAttachementsInPV'
      -'\DisableInternetFilesInPV'
      -'\DisableIntranetCheck'
      -'\DisableUnsafeLocationsInPV'

  selection_values_0:
    Details: 'DWORD (0x00000000)'
    TargetObject|endswith:
      -'\enabledatabasefileprotectedview'
      -'\enableforeigntextfileprotectedview'

  condition:selection_path and 1 of selection_values_*
Falsepositives:
  -Unlikely
Level: high