{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2024-01-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/763fc00b-4971-43c2-9cd1-f12b58a542bd')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/763fc00b-4971-43c2-9cd1-f12b58a542bd')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "The following object {{ObjectName}} was added to a {{ObjectTier}}  Well-Known or Tier Model high privilege group.",
          "alertDisplayNameFormat": "(TM016.1) A member was added to {{GroupName}} which is a Well-Known or Tier Model Group"
        },
        "alertRuleTemplateName": "763fc00b-4971-43c2-9cd1-f12b58a542bd",
        "customDetails": {
          "Account": "Account",
          "ActivityType": "ActivityType",
          "Channel": "Channel",
          "Computer": "Computer",
          "Domain": "Domain",
          "EventData": "EventData",
          "EventID": "EventID",
          "GroupName": "GroupName",
          "GroupTier": "GroupTier",
          "ObjectName": "ObjectName",
          "ObjectTier": "ObjectTier",
          "ObjectType": "ObjectType",
          "OperationType": "OperationType"
        },
        "description": "Well-Known Groups are classified as Tier 0, and Tier Model groups that provide permission over Tier Model objects.\n",
        "displayName": "PROD (TM016.1) - GROUP - Added to Well-Known or Tier Model Group",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "ObjectName",
                "identifier": "FullName"
              }
            ]
          },
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "Computer",
                "identifier": "HostName"
              }
            ]
          },
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "Account",
                "identifier": "FullName"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "incidentConfiguration": {
          "createIncident": true,
          "groupingConfiguration": {
            "enabled": false,
            "lookbackDuration": "PT5H",
            "matchingMethod": "AllEntities",
            "reopenClosedIncident": false
          }
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft%20Active%20Directory%20Tier%20Model/Analytic%20Rules/TM016_GROUPAddedToWellKnownOrTierModelGroup.yaml",
        "query": "let adminGroups = dynamic([\n    \"CN=Domain Admins,CN=Users\",\n    \"CN=Enterprise Admins,CN=Users\",\n    \"CN=Administrators,CN=Builtin\",\n    \"CN=Cert Publishers,CN=Users\",\n    \"CN=Cloneable Domain Controllers,CN=Users\",\n    \"CN=Denied RODC Password Replication Group,CN=Users\",\n    \"CN=DnsAdmins,CN=Users\",\n    \"CN=DnsUpdateProxy,CN=Users\",\n    \"CN=Domain Controllers,CN=Users\",\n    \"CN=Domain Guests,CN=Users\",\n    \"CN=Enterprise Key Admins,CN=Users\",\n    \"CN=Enterprise Read-only Domain Controllers,CN=Users\",\n    \"CN=External Trust Accounts,CN=Users\",\n    \"CN=Forest Trust Accounts,CN=Users\",\n    \"CN=Group Policy Creator Owners,CN=Users\",\n    \"CN=Key Admins,CN=Users\",\n    \"CN=RAS and IAS Servers,CN=Users\",\n    \"CN=Read-only Domain Controllers,CN=Users\",\n    \"CN=Schema Admins,CN=Users\",\n    \"CN=Access Control Assistance Operators,CN=Builtin\",\n    \"CN=Account Operators,CN=Builtin\",\n    \"CN=Backup Operators,CN=Builtin\",\n    \"CN=Certificate Service DCOM Access,CN=Builtin\",\n    \"CN=Cryptographic Operators,CN=Builtin\",\n    \"CN=Distributed COM Users,CN=Builtin\",\n    \"CN=Event Log Readers,CN=Builtin\",\n    \"CN=Guests,CN=Builtin\",\n    \"CN=Hyper-V Administrators,CN=Builtin\",\n    \"CN=IIS_IUSRS,CN=Builtin\",\n    \"CN=Incoming Forest Trust Builders,CN=Builtin\",\n    \"CN=Network Configuration Operators,CN=Builtin\",\n    \"CN=OpenSSH Users,CN=Builtin\",\n    \"CN=Performance Log Users,CN=Builtin\",\n    \"CN=Performance Monitor Users,CN=Builtin\",\n    \"CN=Pre-Windows 2000 Compatible Access,CN=Builtin\",\n    \"CN=Print Operators,CN=Builtin\",\n    \"CN=RDS Endpoint Servers,CN=Builtin\",\n    \"CN=RDS Management Servers,CN=Builtin\",\n    \"CN=RDS Remote Access Servers,CN=Builtin\",\n    \"CN=Remote Desktop Users,CN=Builtin\",\n    \"CN=Remote Management Users,CN=Builtin\",\n    \"CN=Replicator,CN=Builtin\",\n    \"CN=Server Operators,CN=Builtin\",\n    \"CN=Storage Replica Administrators,CN=Builtin\",\n    \"CN=Terminal Server License Servers,CN=Builtin\",\n    \"CN=Users,CN=Builtin\",\n    \"CN=Windows Authorization Access Group,CN=Builtin\",\n    \"CN=Tier 0 Admins,OU=Tier 0 Groups,OU=Tier 0,OU=Tier Model Administration\",\n    \"CN=Tier 0 Server Operators,OU=Tier 0 Groups,OU=Tier 0,OU=Tier Model Administration\",\n    \"CN=Tier 1 Admins,OU=Tier 1 Groups,OU=Tier 1,OU=Tier Model Administration\",\n    \"CN=Tier 1 Server Operators,OU=Tier 1 Groups,OU=Tier 1,OU=Tier Model Administration\",\n    \"CN=Tier 2 Admins,OU=Tier 2 Groups,OU=Tier 2,OU=Tier Model Administration\"\n]);\nSecurityEvent\n| where EventID == 5136\n| extend EventData = tostring(EventData)\n| where EventData has_any(adminGroups)\n    and EventData has '\"AttributeLDAPDisplayName\">member'\n    and EventData has 'OperationType\">14674', \"Added\", tostring(OperationType))\n| project TimeGenerated \n        , ObjectName\n        , ObjectTier\n        , ObjectType = AccountType\n        , GroupName\n        , GroupTier\n        , ActivityType\n        , OperationType\n        , Account\n        , Domain\n        , Computer\n        , Channel\n        , EventID\n        , EventData\n",
        "queryFrequency": "PT5M",
        "queryPeriod": "PT5M",
        "severity": "High",
        "status": "Available",
        "subTechniques": [
          "T1078.002"
        ],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "PrivilegeEscalation"
        ],
        "techniques": [
          "T1078"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}