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

OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Detections/AuditLogs/End-userconsentstoppedduetorisk-basedconsent.yaml
metadata:
  categories:
    domains:
    - Security - Others
  author:
    name: Microsoft Security Research
  source:
    kind: Community
  support:
    tier: Community
id: 009b9bae-23dd-43c4-bcb9-11c4ba7c784a
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  
tags:
- AADSecOpsGuide
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'  
name: End-user consent stopped due to risk-based consent
relevantTechniques:
- T1078.004
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: FullName
    columnName: InitiatingUserPrincipalName
  - identifier: Name
    columnName: InitiatingAccountName
  - identifier: UPNSuffix
    columnName: InitiatingAccountUPNSuffix
- entityType: Account
  fieldMappings:
  - identifier: AadUserId
    columnName: InitiatingAadUserId
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: InitiatingIPAddress
- entityType: CloudApplication
  fieldMappings:
  - identifier: AppId
    columnName: TargetAppId
  - identifier: Name
    columnName: TargetAppName
triggerThreshold: 0
severity: Medium
requiredDataConnectors:
- dataTypes:
  - AuditLogs
  connectorId: AzureActiveDirectory
queryFrequency: 1d
queryPeriod: 1d
version: 1.1.1
kind: Scheduled
tactics:
- Persistence
- PrivilegeEscalation
triggerOperator: gt

{
  "$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"
    }
  ]
}