Dataverse - Audit logging disabled

id: ea07523b-e6b8-469b-9e25-cdef1ae6fb45
kind: Scheduled
name: Dataverse - Audit logging disabled
description: Identifies a change in system audit configuration whereby audit logging
  is turned off.
severity: Low
status: Available
requiredDataConnectors:
  - connectorId: Dataverse
    dataTypes:
      - DataverseActivity
queryFrequency: 1h
queryPeriod: 14d
triggerOperator: gt
triggerThreshold: 0
tactics:
  - DefenseEvasion
relevantTechniques:
  - T1562
query: |
  let query_frequency = 1h;
  let audit_properties = dynamic(['isauditenabled', 'isuseraccessauditenabled','isreadauditenabled']);
  DataverseActivity
  | where TimeGenerated >= ago(query_frequency)
  | where Message in~ ("Update", "UpdateAuditSettings")
  | where Fields has_any (audit_properties)
  | mv-expand Fields
  | extend AuditValue = Fields.Name, AuditEnabled = tobool(Fields.Value)
  | where AuditValue in~ (audit_properties) and not (AuditEnabled)
  | extend
      CloudAppId = int(32780),
      AccountName = tostring(split(UserId, '@')[0]),
      UPNSuffix = tostring(split(UserId, '@')[1])
  | project
      TimeGenerated,
      UserId,
      ClientIp,
      OriginalObjectId,
      AuditValue,
      AuditEnabled,
      InstanceUrl,
      CloudAppId,
      AccountName,
      UPNSuffix
eventGroupingSettings:
  aggregationKind: SingleAlert
entityMappings:
  - entityType: Account
    fieldMappings:
      - identifier: Name
        columnName: AccountName
      - identifier: UPNSuffix
        columnName: UPNSuffix
  - entityType: IP
    fieldMappings:
      - identifier: Address
        columnName: ClientIp
  - entityType: CloudApplication
    fieldMappings:
      - identifier: AppId
        columnName: CloudAppId
      - identifier: InstanceName
        columnName: InstanceUrl
alertDetailsOverride:
  alertDisplayNameFormat: 'Dataverse - Audit logging was disabled in {{InstanceUrl}} '
  alertDescriptionFormat: 'Audit settings changes were detected in {{InstanceUrl}}.
    {{AuditValue}} enabled: was set to {{AuditEnabled}}.'
version: 3.2.1