User Assigned New Privileged Role

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Id	746ddb63-f51b-4563-b449-a8b13cf302ec
Rulename	User Assigned New Privileged Role
Description	Identifies when a new eligible or active privileged role is assigned to a user. Does not alert on PIM activations. Any account eligible for a role is now being given privileged access. If the assignment is unexpected or into a role that isn’t the responsibility of the account holder, investigate. Ref : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-accounts#things-to-monitor-1
Severity	High
Tactics	Persistence
Techniques	T1078.004
Required data connectors	AzureActiveDirectory
Kind	Scheduled
Query frequency	2h
Query period	2h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Entra ID/Analytic Rules/UserAssignedNewPrivilegedRole.yaml
Version	1.0.1
Arm template	746ddb63-f51b-4563-b449-a8b13cf302ec.json

KQL

AuditLogs
| where Category =~ "RoleManagement"
| where AADOperationType in ("Assign", "AssignEligibleRole", "CreateRequestGrantedRole", "CreateRequestPermanentEligibleRole", "CreateRequestPermanentGrantedRole")
| where ActivityDisplayName has_any ("Add eligible member to role", "Add member to role")
| mv-apply TargetResourceSubject = TargetResources on 
  (
      where TargetResourceSubject.type in~ ("User", "ServicePrincipal")
      | extend Target = iff(TargetResourceSubject.type =~ "ServicePrincipal", tostring(TargetResourceSubject.displayName), tostring(TargetResourceSubject.userPrincipalName)),
               subjectProps = TargetResourceSubject.modifiedProperties
  )
| mv-apply TargetResourceRole = TargetResources on 
  (
    // mimic modifiedProperties so we can use the same logic to get the role name regardless of where it comes from
    where TargetResourceRole.type in~ ("Role")
    | extend roleProps = pack_array(bag_pack("displayName","Role.DisplayName", "newValue", TargetResourceRole.displayName))
  )
| mv-apply Property = iff(array_length(subjectProps) > 0, subjectProps, roleProps) on 
  ( 
    where Property.displayName =~ "Role.DisplayName"
      | extend RoleName = trim('"',tostring(Property.newValue))
  )
| where RoleName contains "Admin"
| extend InitiatingAppName = tostring(InitiatedBy.app.displayName)
| extend InitiatingAppServicePrincipalId = tostring(InitiatedBy.app.servicePrincipalId)
| 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 Initiator = iif(isnotempty(InitiatingAppName), InitiatingAppName, InitiatingUserPrincipalName)
// Comment below to alert for PIM activations
| where Initiator != "MS-PIM"
| summarize by bin(TimeGenerated, 1h), OperationName, RoleName, Target, Initiator, InitiatingUserPrincipalName, InitiatingAadUserId, InitiatingAppName, InitiatingAppServicePrincipalId, InitiatingIpAddress, Result
| extend TargetName = tostring(split(Target,'@',0)[0]), TargetUPNSuffix = tostring(split(Target,'@',1)[0]), InitiatorName = tostring(split(InitiatingUserPrincipalName,'@',0)[0]), InitiatorUPNSuffix = tostring(split(InitiatingUserPrincipalName,'@',1)[0])

YAML

relevantTechniques:
- T1078.004
name: User Assigned New Privileged Role
requiredDataConnectors:
- dataTypes:
  - AuditLogs
  connectorId: AzureActiveDirectory
entityMappings:
- fieldMappings:
  - identifier: FullName
    columnName: Target
  - identifier: Name
    columnName: TargetName
  - identifier: UPNSuffix
    columnName: TargetUPNSuffix
  entityType: Account
- fieldMappings:
  - identifier: FullName
    columnName: InitiatingUserPrincipalName
  - identifier: Name
    columnName: InitiatorName
  - identifier: UPNSuffix
    columnName: InitiatorUPNSuffix
  entityType: Account
- fieldMappings:
  - identifier: AadUserId
    columnName: InitiatingAadUserId
  entityType: Account
- fieldMappings:
  - identifier: AadUserId
    columnName: InitiatingAppServicePrincipalId
  entityType: Account
- fieldMappings:
  - identifier: Address
    columnName: InitiatingIpAddress
  entityType: IP
triggerThreshold: 0
id: 746ddb63-f51b-4563-b449-a8b13cf302ec
tactics:
- Persistence
version: 1.0.1
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Entra ID/Analytic Rules/UserAssignedNewPrivilegedRole.yaml
queryPeriod: 2h
kind: Scheduled
tags:
- AADSecOpsGuide
queryFrequency: 2h
severity: High
status: Available
description: |
  'Identifies when a new eligible or active privileged role is assigned to a user. Does not alert on PIM activations. Any account eligible for a role is now being given privileged access. If the assignment is unexpected or into a role that isn't the responsibility of the account holder, investigate.
  Ref : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-accounts#things-to-monitor-1'  
query: |
  AuditLogs
  | where Category =~ "RoleManagement"
  | where AADOperationType in ("Assign", "AssignEligibleRole", "CreateRequestGrantedRole", "CreateRequestPermanentEligibleRole", "CreateRequestPermanentGrantedRole")
  | where ActivityDisplayName has_any ("Add eligible member to role", "Add member to role")
  | mv-apply TargetResourceSubject = TargetResources on 
    (
        where TargetResourceSubject.type in~ ("User", "ServicePrincipal")
        | extend Target = iff(TargetResourceSubject.type =~ "ServicePrincipal", tostring(TargetResourceSubject.displayName), tostring(TargetResourceSubject.userPrincipalName)),
                 subjectProps = TargetResourceSubject.modifiedProperties
    )
  | mv-apply TargetResourceRole = TargetResources on 
    (
      // mimic modifiedProperties so we can use the same logic to get the role name regardless of where it comes from
      where TargetResourceRole.type in~ ("Role")
      | extend roleProps = pack_array(bag_pack("displayName","Role.DisplayName", "newValue", TargetResourceRole.displayName))
    )
  | mv-apply Property = iff(array_length(subjectProps) > 0, subjectProps, roleProps) on 
    ( 
      where Property.displayName =~ "Role.DisplayName"
        | extend RoleName = trim('"',tostring(Property.newValue))
    )
  | where RoleName contains "Admin"
  | extend InitiatingAppName = tostring(InitiatedBy.app.displayName)
  | extend InitiatingAppServicePrincipalId = tostring(InitiatedBy.app.servicePrincipalId)
  | 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 Initiator = iif(isnotempty(InitiatingAppName), InitiatingAppName, InitiatingUserPrincipalName)
  // Comment below to alert for PIM activations
  | where Initiator != "MS-PIM"
  | summarize by bin(TimeGenerated, 1h), OperationName, RoleName, Target, Initiator, InitiatingUserPrincipalName, InitiatingAadUserId, InitiatingAppName, InitiatingAppServicePrincipalId, InitiatingIpAddress, Result
  | extend TargetName = tostring(split(Target,'@',0)[0]), TargetUPNSuffix = tostring(split(Target,'@',1)[0]), InitiatorName = tostring(split(InitiatingUserPrincipalName,'@',0)[0]), InitiatorUPNSuffix = tostring(split(InitiatingUserPrincipalName,'@',1)[0])  
triggerOperator: gt

ARM

{
  "$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/746ddb63-f51b-4563-b449-a8b13cf302ec')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/746ddb63-f51b-4563-b449-a8b13cf302ec')]",
      "properties": {
        "alertRuleTemplateName": "746ddb63-f51b-4563-b449-a8b13cf302ec",
        "customDetails": null,
        "description": "'Identifies when a new eligible or active privileged role is assigned to a user. Does not alert on PIM activations. Any account eligible for a role is now being given privileged access. If the assignment is unexpected or into a role that isn't the responsibility of the account holder, investigate.\nRef : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-accounts#things-to-monitor-1'\n",
        "displayName": "User Assigned New Privileged Role",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "Target",
                "identifier": "FullName"
              },
              {
                "columnName": "TargetName",
                "identifier": "Name"
              },
              {
                "columnName": "TargetUPNSuffix",
                "identifier": "UPNSuffix"
              }
            ]
          },
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "InitiatingUserPrincipalName",
                "identifier": "FullName"
              },
              {
                "columnName": "InitiatorName",
                "identifier": "Name"
              },
              {
                "columnName": "InitiatorUPNSuffix",
                "identifier": "UPNSuffix"
              }
            ]
          },
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "InitiatingAadUserId",
                "identifier": "AadUserId"
              }
            ]
          },
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "InitiatingAppServicePrincipalId",
                "identifier": "AadUserId"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "InitiatingIpAddress",
                "identifier": "Address"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Entra ID/Analytic Rules/UserAssignedNewPrivilegedRole.yaml",
        "query": "AuditLogs\n| where Category =~ \"RoleManagement\"\n| where AADOperationType in (\"Assign\", \"AssignEligibleRole\", \"CreateRequestGrantedRole\", \"CreateRequestPermanentEligibleRole\", \"CreateRequestPermanentGrantedRole\")\n| where ActivityDisplayName has_any (\"Add eligible member to role\", \"Add member to role\")\n| mv-apply TargetResourceSubject = TargetResources on \n  (\n      where TargetResourceSubject.type in~ (\"User\", \"ServicePrincipal\")\n      | extend Target = iff(TargetResourceSubject.type =~ \"ServicePrincipal\", tostring(TargetResourceSubject.displayName), tostring(TargetResourceSubject.userPrincipalName)),\n               subjectProps = TargetResourceSubject.modifiedProperties\n  )\n| mv-apply TargetResourceRole = TargetResources on \n  (\n    // mimic modifiedProperties so we can use the same logic to get the role name regardless of where it comes from\n    where TargetResourceRole.type in~ (\"Role\")\n    | extend roleProps = pack_array(bag_pack(\"displayName\",\"Role.DisplayName\", \"newValue\", TargetResourceRole.displayName))\n  )\n| mv-apply Property = iff(array_length(subjectProps) > 0, subjectProps, roleProps) on \n  ( \n    where Property.displayName =~ \"Role.DisplayName\"\n      | extend RoleName = trim('\"',tostring(Property.newValue))\n  )\n| where RoleName contains \"Admin\"\n| extend InitiatingAppName = tostring(InitiatedBy.app.displayName)\n| extend InitiatingAppServicePrincipalId = tostring(InitiatedBy.app.servicePrincipalId)\n| extend InitiatingUserPrincipalName = tostring(InitiatedBy.user.userPrincipalName)\n| extend InitiatingAadUserId = tostring(InitiatedBy.user.id)\n| extend InitiatingIpAddress = tostring(iff(isnotempty(InitiatedBy.user.ipAddress), InitiatedBy.user.ipAddress, InitiatedBy.app.ipAddress))\n| extend Initiator = iif(isnotempty(InitiatingAppName), InitiatingAppName, InitiatingUserPrincipalName)\n// Comment below to alert for PIM activations\n| where Initiator != \"MS-PIM\"\n| summarize by bin(TimeGenerated, 1h), OperationName, RoleName, Target, Initiator, InitiatingUserPrincipalName, InitiatingAadUserId, InitiatingAppName, InitiatingAppServicePrincipalId, InitiatingIpAddress, Result\n| extend TargetName = tostring(split(Target,'@',0)[0]), TargetUPNSuffix = tostring(split(Target,'@',1)[0]), InitiatorName = tostring(split(InitiatingUserPrincipalName,'@',0)[0]), InitiatorUPNSuffix = tostring(split(InitiatingUserPrincipalName,'@',1)[0])\n",
        "queryFrequency": "PT2H",
        "queryPeriod": "PT2H",
        "severity": "High",
        "status": "Available",
        "subTechniques": [
          "T1078.004"
        ],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Persistence"
        ],
        "tags": [
          "AADSecOpsGuide"
        ],
        "techniques": [
          "T1078"
        ],
        "templateVersion": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}