NRT PIM Elevation Request Rejected

AuditLogs
| where ActivityDisplayName =~'Add member to role completed (PIM activation)'
| where Result == "failure"
| extend Role = tostring(TargetResources[3].displayName)
| extend User = tostring(TargetResources[2].displayName)
| project-reorder TimeGenerated, User, Role, OperationName, Result, ResultDescription
| extend InitiatingUser = tostring(parse_json(tostring(InitiatedBy.user)).userPrincipalName)
| extend IPCustomEntity = tostring(parse_json(tostring(InitiatedBy.user)).ipAddress)

version: 1.0.0
status: Available
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Azure Active Directory/Analytic Rules/NRT_PIMElevationRequestRejected.yaml
requiredDataConnectors:
- connectorId: AzureActiveDirectory
  dataTypes:
  - AuditLogs
entityMappings:
- fieldMappings:
  - columnName: InitiatingUser
    identifier: FullName
  entityType: Account
- fieldMappings:
  - columnName: User
    identifier: FullName
  entityType: Account
- fieldMappings:
  - columnName: IPCustomEntity
    identifier: Address
  entityType: IP
kind: NRT
id: 5db427b2-f406-4274-b413-e9fcb29412f8
severity: High
query: |
  AuditLogs
  | where ActivityDisplayName =~'Add member to role completed (PIM activation)'
  | where Result == "failure"
  | extend Role = tostring(TargetResources[3].displayName)
  | extend User = tostring(TargetResources[2].displayName)
  | project-reorder TimeGenerated, User, Role, OperationName, Result, ResultDescription
  | extend InitiatingUser = tostring(parse_json(tostring(InitiatedBy.user)).userPrincipalName)
  | extend IPCustomEntity = tostring(parse_json(tostring(InitiatedBy.user)).ipAddress)  
tags:
- AADSecOpsGuide
description: |
  'Identifies when a user is rejected for a privileged role elevation via PIM. Monitor rejections for indicators of attacker compromise of the requesting account.
  Ref : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-identity-management'  
name: NRT PIM Elevation Request Rejected
relevantTechniques:
- T1078.004
tactics:
- Persistence

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/5db427b2-f406-4274-b413-e9fcb29412f8')]",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/5db427b2-f406-4274-b413-e9fcb29412f8')]",
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
      "kind": "Nrt",
      "apiVersion": "2022-11-01",
      "properties": {
        "displayName": "NRT PIM Elevation Request Rejected",
        "description": "'Identifies when a user is rejected for a privileged role elevation via PIM. Monitor rejections for indicators of attacker compromise of the requesting account.\nRef : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-identity-management'\n",
        "severity": "High",
        "enabled": true,
        "query": "AuditLogs\n| where ActivityDisplayName =~'Add member to role completed (PIM activation)'\n| where Result == \"failure\"\n| extend Role = tostring(TargetResources[3].displayName)\n| extend User = tostring(TargetResources[2].displayName)\n| project-reorder TimeGenerated, User, Role, OperationName, Result, ResultDescription\n| extend InitiatingUser = tostring(parse_json(tostring(InitiatedBy.user)).userPrincipalName)\n| extend IPCustomEntity = tostring(parse_json(tostring(InitiatedBy.user)).ipAddress)\n",
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Persistence"
        ],
        "techniques": [
          "T1078.004"
        ],
        "alertRuleTemplateName": "5db427b2-f406-4274-b413-e9fcb29412f8",
        "customDetails": null,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "identifier": "FullName",
                "columnName": "InitiatingUser"
              }
            ]
          },
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "identifier": "FullName",
                "columnName": "User"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "identifier": "Address",
                "columnName": "IPCustomEntity"
              }
            ]
          }
        ],
        "templateVersion": "1.0.0",
        "status": "Available",
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Azure Active Directory/Analytic Rules/NRT_PIMElevationRequestRejected.yaml",
        "tags": [
          "AADSecOpsGuide"
        ]
      }
    }
  ]
}