Windows Event Auditing Disabled

 Original Source: [Sigma source]
Title: Windows Event Auditing Disabled
Status: test
Description:Detects scenarios where system auditing (i.e.: Windows event log auditing) is disabled. This may be used in a scenario where an entity would want to bypass local logging to evade detection when Windows event logging is enabled and reviewed. Also, it is recommended to turn off "Local Group Policy Object Processing" via GPO, which will make sure that Active Directory GPOs take precedence over local/edited computer policies via something such as "gpedit.msc". Please note, that disabling "Local Group Policy Object Processing" may cause an issue in scenarios of one off specific GPO modifications - however, it is recommended to perform these modifications in Active Directory anyways.
References:
  -https://docs.google.com/presentation/d/1dkrldTTlN3La-OjWtkWJBb4hVk6vfsSMBFBERs6R8zA/edit
Author: @neu5ron, Nasreddine Bencherchali (Nextron Systems)
Date: 2017-11-19
modified:2023-11-15
Tags:
  • -'attack.defense-impairment'
  • -'attack.t1685.001'
Logsource:
  • product: windows
  • service: security
  • definition: dfd8c0f4-e6ad-4e07-b91b-f2fca0ddef64
Detection:
  selection:
    EventID: '4719'
    AuditPolicyChanges|contains:
      -'%%8448'
      -'%%8450'

  filter_main_guid:
    SubcategoryGuid:
      -'{0CCE9210-69AE-11D9-BED3-505054503030}'
      -'{0CCE9211-69AE-11D9-BED3-505054503030}'
      -'{0CCE9212-69AE-11D9-BED3-505054503030}'
      -'{0CCE9215-69AE-11D9-BED3-505054503030}'
      -'{0CCE9217-69AE-11D9-BED3-505054503030}'
      -'{0CCE921B-69AE-11D9-BED3-505054503030}'
      -'{0CCE922B-69AE-11D9-BED3-505054503030}'
      -'{0CCE922F-69AE-11D9-BED3-505054503030}'
      -'{0CCE9230-69AE-11D9-BED3-505054503030}'
      -'{0CCE9235-69AE-11D9-BED3-505054503030}'
      -'{0CCE9236-69AE-11D9-BED3-505054503030}'
      -'{0CCE9237-69AE-11D9-BED3-505054503030}'
      -'{0CCE923F-69AE-11D9-BED3-505054503030}'
      -'{0CCE9240-69AE-11D9-BED3-505054503030}'
      -'{0CCE9242-69AE-11D9-BED3-505054503030}'

  condition:selection and not 1 of filter_main_*
Falsepositives:
  -Unknown
Level: low