User added to Microsoft Entra ID Privileged Groups

Requête originale, sans modification.

let OperationList = dynamic(["Add member to role","Add eligible member to role"]);
let PrivilegedGroups = dynamic(["UserAccountAdmins","PrivilegedRoleAdmins","TenantAdmins","PrivilegedAuthenticationAdmins"]);
AuditLogs
| where Category =~ "RoleManagement"
| where OperationName in~ (OperationList)
| mv-apply TargetResource = TargetResources on 
  (
      where TargetResource.type =~ "User"
      | extend TargetUserPrincipalName = tostring(TargetResource.userPrincipalName),
               modProps = TargetResource.modifiedProperties
  )
| mv-apply Property = modProps on 
  (
      where Property.displayName =~ "Role.WellKnownObjectName"
      | extend DisplayName = trim('"',tostring(Property.displayName)),
               GroupName = trim('"',tostring(Property.newValue))
  )
| extend InitiatingAppId = InitiatedBy.app.appId
| extend InitiatingAppName = tostring(InitiatedBy.app.displayName)
| extend InitiatingAppServicePrincipalId = tostring(InitiatedBy.app.servicePrincipalId)
| extend InitiatingAppServicePrincipalName = tostring(InitiatedBy.app.servicePrincipalName)
| extend InitiatingUserPrincipalName = tostring(InitiatedBy.user.userPrincipalName)
| extend InitiatingAadUserId = tostring(InitiatedBy.user.id)
| extend InitiatingIpAddress = tostring(iff(isnotempty(InitiatedBy.user.ipAddress), InitiatedBy.user.ipAddress, InitiatedBy.app.ipAddress))
| extend InitiatingUserRoles = InitiatedBy.user.roles
| where GroupName in~ (PrivilegedGroups)
// If you don't want to alert for operations from PIM, remove below filtering for MS-PIM.
//| where InitiatingAppName != "MS-PIM" and InitiatingAppName != "MS-PIM-Fairfax"
| project TimeGenerated, AADOperationType, Category, OperationName, AADTenantId, InitiatingUserPrincipalName, InitiatingAadUserId, InitiatingAppId, InitiatingAppName, InitiatingAppServicePrincipalName, InitiatingAppServicePrincipalId, InitiatingIpAddress, DisplayName, GroupName, InitiatingUserRoles, TargetUserPrincipalName
| extend AccountName = tostring(split(InitiatingUserPrincipalName,'@',0)[0]), AccountUPNSuffix = tostring(split(InitiatingUserPrincipalName,'@',1)[0])
| extend TargetName = tostring(split(TargetUserPrincipalName,'@',0)[0]), TargetUPNSuffix = tostring(split(TargetUserPrincipalName,'@',1)[0])