End-user consent stopped due to risk-based consent

AuditLogs
  | where OperationName has "Consent to application"
  | where Result =~ "failure"
  | extend InitiatingUserPrincipalName = tostring(InitiatedBy.user.userPrincipalName)
  | extend InitiatingAadUserId = tostring(InitiatedBy.user.id)
  | extend InitiatingIPAddress = tostring(InitiatedBy.user.ipAddress)
  | extend userAgent = iif(AdditionalDetails[0].key == "User-Agent", tostring(AdditionalDetails[0].value), tostring(AdditionalDetails[1].value))
  | where isnotempty(TargetResources)
  | extend TargetAppName = tostring(TargetResources[0].displayName)
  | extend TargetAppId = tostring(TargetResources[0].id)
  | mv-expand TargetResources[0].modifiedProperties
  | extend TargetResources_0_modifiedProperties = columnifexists("TargetResources_0_modifiedProperties", '')
  | where isnotempty(TargetResources_0_modifiedProperties)
  | where TargetResources_0_modifiedProperties.displayName =~ "MethodExecutionResult."
  | extend TargetPropertyDisplayName = tostring(TargetResources_0_modifiedProperties.displayName)
  | extend FailureReason = tostring(parse_json(tostring(TargetResources_0_modifiedProperties.newValue)))
  | where FailureReason contains "Risky"
  | extend InitiatingAccountName = tostring(split(InitiatingUserPrincipalName, "@")[0]), InitiatingAccountUPNSuffix = tostring(split(InitiatingUserPrincipalName, "@")[1])
  | project-reorder TimeGenerated, OperationName, Result, TargetAppName, TargetAppId, FailureReason, InitiatingUserPrincipalName, InitiatingAadUserId, InitiatingIPAddress, userAgent

name: End-user consent stopped due to risk-based consent
relevantTechniques:
- T1078.004
requiredDataConnectors:
- dataTypes:
  - AuditLogs
  connectorId: AzureActiveDirectory
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Detections/AuditLogs/End-userconsentstoppedduetorisk-basedconsent.yaml
query: |
  AuditLogs
    | where OperationName has "Consent to application"
    | where Result =~ "failure"
    | extend InitiatingUserPrincipalName = tostring(InitiatedBy.user.userPrincipalName)
    | extend InitiatingAadUserId = tostring(InitiatedBy.user.id)
    | extend InitiatingIPAddress = tostring(InitiatedBy.user.ipAddress)
    | extend userAgent = iif(AdditionalDetails[0].key == "User-Agent", tostring(AdditionalDetails[0].value), tostring(AdditionalDetails[1].value))
    | where isnotempty(TargetResources)
    | extend TargetAppName = tostring(TargetResources[0].displayName)
    | extend TargetAppId = tostring(TargetResources[0].id)
    | mv-expand TargetResources[0].modifiedProperties
    | extend TargetResources_0_modifiedProperties = columnifexists("TargetResources_0_modifiedProperties", '')
    | where isnotempty(TargetResources_0_modifiedProperties)
    | where TargetResources_0_modifiedProperties.displayName =~ "MethodExecutionResult."
    | extend TargetPropertyDisplayName = tostring(TargetResources_0_modifiedProperties.displayName)
    | extend FailureReason = tostring(parse_json(tostring(TargetResources_0_modifiedProperties.newValue)))
    | where FailureReason contains "Risky"
    | extend InitiatingAccountName = tostring(split(InitiatingUserPrincipalName, "@")[0]), InitiatingAccountUPNSuffix = tostring(split(InitiatingUserPrincipalName, "@")[1])
    | project-reorder TimeGenerated, OperationName, Result, TargetAppName, TargetAppId, FailureReason, InitiatingUserPrincipalName, InitiatingAadUserId, InitiatingIPAddress, userAgent  
tactics:
- Persistence
- PrivilegeEscalation
description: |
  'Detects a user's consent to an OAuth application being blocked due to it being too risky.
    These events should be investigated to understand why the user attempted to consent to the applicaiton and what other applicaitons they may have consented to.
    Ref: https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-applications#end-user-stopped-due-to-risk-based-consent'  
entityMappings:
- fieldMappings:
  - columnName: InitiatingUserPrincipalName
    identifier: FullName
  - columnName: InitiatingAccountName
    identifier: Name
  - columnName: InitiatingAccountUPNSuffix
    identifier: UPNSuffix
  entityType: Account
- fieldMappings:
  - columnName: InitiatingAadUserId
    identifier: AadUserId
  entityType: Account
- fieldMappings:
  - columnName: InitiatingIPAddress
    identifier: Address
  entityType: IP
- fieldMappings:
  - columnName: TargetAppId
    identifier: AppId
  - columnName: TargetAppName
    identifier: Name
  entityType: CloudApplication
queryFrequency: 1d
triggerOperator: gt
metadata:
  source:
    kind: Community
  support:
    tier: Community
  author:
    name: Microsoft Security Research
  categories:
    domains:
    - Security - Others
version: 1.1.1
queryPeriod: 1d
kind: Scheduled
severity: Medium
triggerThreshold: 0
id: 009b9bae-23dd-43c4-bcb9-11c4ba7c784a
tags:
- AADSecOpsGuide

{
  "$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/009b9bae-23dd-43c4-bcb9-11c4ba7c784a')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/009b9bae-23dd-43c4-bcb9-11c4ba7c784a')]",
      "properties": {
        "alertRuleTemplateName": "009b9bae-23dd-43c4-bcb9-11c4ba7c784a",
        "customDetails": null,
        "description": "'Detects a user's consent to an OAuth application being blocked due to it being too risky.\n  These events should be investigated to understand why the user attempted to consent to the applicaiton and what other applicaitons they may have consented to.\n  Ref: https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-applications#end-user-stopped-due-to-risk-based-consent'\n",
        "displayName": "End-user consent stopped due to risk-based consent",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "InitiatingUserPrincipalName",
                "identifier": "FullName"
              },
              {
                "columnName": "InitiatingAccountName",
                "identifier": "Name"
              },
              {
                "columnName": "InitiatingAccountUPNSuffix",
                "identifier": "UPNSuffix"
              }
            ]
          },
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "InitiatingAadUserId",
                "identifier": "AadUserId"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "InitiatingIPAddress",
                "identifier": "Address"
              }
            ]
          },
          {
            "entityType": "CloudApplication",
            "fieldMappings": [
              {
                "columnName": "TargetAppId",
                "identifier": "AppId"
              },
              {
                "columnName": "TargetAppName",
                "identifier": "Name"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Detections/AuditLogs/End-userconsentstoppedduetorisk-basedconsent.yaml",
        "query": "AuditLogs\n  | where OperationName has \"Consent to application\"\n  | where Result =~ \"failure\"\n  | extend InitiatingUserPrincipalName = tostring(InitiatedBy.user.userPrincipalName)\n  | extend InitiatingAadUserId = tostring(InitiatedBy.user.id)\n  | extend InitiatingIPAddress = tostring(InitiatedBy.user.ipAddress)\n  | extend userAgent = iif(AdditionalDetails[0].key == \"User-Agent\", tostring(AdditionalDetails[0].value), tostring(AdditionalDetails[1].value))\n  | where isnotempty(TargetResources)\n  | extend TargetAppName = tostring(TargetResources[0].displayName)\n  | extend TargetAppId = tostring(TargetResources[0].id)\n  | mv-expand TargetResources[0].modifiedProperties\n  | extend TargetResources_0_modifiedProperties = columnifexists(\"TargetResources_0_modifiedProperties\", '')\n  | where isnotempty(TargetResources_0_modifiedProperties)\n  | where TargetResources_0_modifiedProperties.displayName =~ \"MethodExecutionResult.\"\n  | extend TargetPropertyDisplayName = tostring(TargetResources_0_modifiedProperties.displayName)\n  | extend FailureReason = tostring(parse_json(tostring(TargetResources_0_modifiedProperties.newValue)))\n  | where FailureReason contains \"Risky\"\n  | extend InitiatingAccountName = tostring(split(InitiatingUserPrincipalName, \"@\")[0]), InitiatingAccountUPNSuffix = tostring(split(InitiatingUserPrincipalName, \"@\")[1])\n  | project-reorder TimeGenerated, OperationName, Result, TargetAppName, TargetAppId, FailureReason, InitiatingUserPrincipalName, InitiatingAadUserId, InitiatingIPAddress, userAgent\n",
        "queryFrequency": "P1D",
        "queryPeriod": "P1D",
        "severity": "Medium",
        "subTechniques": [
          "T1078.004"
        ],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Persistence",
          "PrivilegeEscalation"
        ],
        "tags": [
          "AADSecOpsGuide"
        ],
        "techniques": [
          "T1078"
        ],
        "templateVersion": "1.1.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}