BTP - Trust and authorization Identity Provider monitor

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Id	62357c23-ecdc-4edc-9349-8338063af1ef
Rulename	BTP - Trust and authorization Identity Provider monitor
Description	Identifies CRUD operations on Identity Provider settings within a sub account.
Severity	Medium
Tactics	CredentialAccess PrivilegeEscalation
Techniques	T1606 T1556 T1134
Required data connectors	SAPBTPAuditEvents
Kind	Scheduled
Query frequency	15m
Query period	15m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/SAP BTP/Analytic Rules/BTP - Trust and authorization Identity Provider monitor.yaml
Version	3.0.5
Arm template	62357c23-ecdc-4edc-9349-8338063af1ef.json

KQL

SAPBTPAuditLog_CL
| where isnotnull(Message.object)
| extend Object = Message.object, Attributes = Message.attributes
| where Object.type == "IdentityProvider"
| extend CrudType = tostring(parse_json(tostring(Object.id)).crudType)
| mv-expand Attributes
| extend MessageText = case(
                           CrudType == "CREATE",
                           "An identity provider was created",
                           CrudType == "UPDATE",
                           "An identity provider was updated",
                           CrudType == "DELETE",
                           "An identity provider was deleted",
                           "Unclassified CRUD operation encountered"
                       )
| extend NewAttributes = parse_json(replace_regex(tostring(Attributes.new), "\\r", ""))
| extend OldAttributes = parse_json(replace_regex(tostring(Attributes.old), "\\r", ""))
| extend IdentityProviderName = case(
                                    CrudType == "CREATE" or CrudType == "UPDATE",
                                    NewAttributes.name,
                                    CrudType == "DELETE",
                                    OldAttributes.name,
                                    "Unknown"
                                )
| project
    UpdatedOn,
    UserName,
    MessageText,
    IdentityProviderName,
    Tenant,
    SpaceId,
    CloudApp = "SAP BTP"
| extend AccountName = split(UserName, "@")[0], UPNSuffix = split(UserName, "@")[1]

YAML

queryPeriod: 15m
id: 62357c23-ecdc-4edc-9349-8338063af1ef
relevantTechniques:
- T1606
- T1556
- T1134
triggerOperator: gt
entityMappings:
- fieldMappings:
  - columnName: AccountName
    identifier: Name
  - columnName: UPNSuffix
    identifier: UPNSuffix
  entityType: Account
- fieldMappings:
  - columnName: CloudApp
    identifier: Name
  entityType: CloudApplication
query: |
  SAPBTPAuditLog_CL
  | where isnotnull(Message.object)
  | extend Object = Message.object, Attributes = Message.attributes
  | where Object.type == "IdentityProvider"
  | extend CrudType = tostring(parse_json(tostring(Object.id)).crudType)
  | mv-expand Attributes
  | extend MessageText = case(
                             CrudType == "CREATE",
                             "An identity provider was created",
                             CrudType == "UPDATE",
                             "An identity provider was updated",
                             CrudType == "DELETE",
                             "An identity provider was deleted",
                             "Unclassified CRUD operation encountered"
                         )
  | extend NewAttributes = parse_json(replace_regex(tostring(Attributes.new), "\\r", ""))
  | extend OldAttributes = parse_json(replace_regex(tostring(Attributes.old), "\\r", ""))
  | extend IdentityProviderName = case(
                                      CrudType == "CREATE" or CrudType == "UPDATE",
                                      NewAttributes.name,
                                      CrudType == "DELETE",
                                      OldAttributes.name,
                                      "Unknown"
                                  )
  | project
      UpdatedOn,
      UserName,
      MessageText,
      IdentityProviderName,
      Tenant,
      SpaceId,
      CloudApp = "SAP BTP"
  | extend AccountName = split(UserName, "@")[0], UPNSuffix = split(UserName, "@")[1]  
kind: Scheduled
triggerThreshold: 0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/SAP BTP/Analytic Rules/BTP - Trust and authorization Identity Provider monitor.yaml
queryFrequency: 15m
requiredDataConnectors:
- dataTypes:
  - SAPBTPAuditLog_CL
  connectorId: SAPBTPAuditEvents
eventGroupingSettings:
  aggregationKind: SingleAlert
name: BTP - Trust and authorization Identity Provider monitor
version: 3.0.5
description: Identifies CRUD operations on Identity Provider settings within a sub account.
alertDetailsOverride:
  alertDisplayNameFormat: 'SAP BTP: {{MessageText}}'
  alertDescriptionFormat: '{{MessageText}} by {{UserName}}. Identity provider name: {{IdentityProviderName}}'
tactics:
- CredentialAccess
- PrivilegeEscalation
severity: Medium
status: Available

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/62357c23-ecdc-4edc-9349-8338063af1ef')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/62357c23-ecdc-4edc-9349-8338063af1ef')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "{{MessageText}} by {{UserName}}. Identity provider name: {{IdentityProviderName}}",
          "alertDisplayNameFormat": "SAP BTP: {{MessageText}}"
        },
        "alertRuleTemplateName": "62357c23-ecdc-4edc-9349-8338063af1ef",
        "customDetails": null,
        "description": "Identifies CRUD operations on Identity Provider settings within a sub account.",
        "displayName": "BTP - Trust and authorization Identity Provider monitor",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "AccountName",
                "identifier": "Name"
              },
              {
                "columnName": "UPNSuffix",
                "identifier": "UPNSuffix"
              }
            ]
          },
          {
            "entityType": "CloudApplication",
            "fieldMappings": [
              {
                "columnName": "CloudApp",
                "identifier": "Name"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "SingleAlert"
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/SAP BTP/Analytic Rules/BTP - Trust and authorization Identity Provider monitor.yaml",
        "query": "SAPBTPAuditLog_CL\n| where isnotnull(Message.object)\n| extend Object = Message.object, Attributes = Message.attributes\n| where Object.type == \"IdentityProvider\"\n| extend CrudType = tostring(parse_json(tostring(Object.id)).crudType)\n| mv-expand Attributes\n| extend MessageText = case(\n                           CrudType == \"CREATE\",\n                           \"An identity provider was created\",\n                           CrudType == \"UPDATE\",\n                           \"An identity provider was updated\",\n                           CrudType == \"DELETE\",\n                           \"An identity provider was deleted\",\n                           \"Unclassified CRUD operation encountered\"\n                       )\n| extend NewAttributes = parse_json(replace_regex(tostring(Attributes.new), \"\\\\r\", \"\"))\n| extend OldAttributes = parse_json(replace_regex(tostring(Attributes.old), \"\\\\r\", \"\"))\n| extend IdentityProviderName = case(\n                                    CrudType == \"CREATE\" or CrudType == \"UPDATE\",\n                                    NewAttributes.name,\n                                    CrudType == \"DELETE\",\n                                    OldAttributes.name,\n                                    \"Unknown\"\n                                )\n| project\n    UpdatedOn,\n    UserName,\n    MessageText,\n    IdentityProviderName,\n    Tenant,\n    SpaceId,\n    CloudApp = \"SAP BTP\"\n| extend AccountName = split(UserName, \"@\")[0], UPNSuffix = split(UserName, \"@\")[1]\n",
        "queryFrequency": "PT15M",
        "queryPeriod": "PT15M",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CredentialAccess",
          "PrivilegeEscalation"
        ],
        "techniques": [
          "T1134",
          "T1556",
          "T1606"
        ],
        "templateVersion": "3.0.5",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}