NRT Sensitive Azure Key Vault operations

let SensitiveOperationList = dynamic(
["VaultDelete", "KeyDelete", "SecretDelete", "SecretPurge", "KeyPurge", "SecretBackup", "KeyBackup"]);
AzureDiagnostics
| extend ResultType = column_ifexists("ResultType", "NoResultType"), 
requestUri_s = column_ifexists("requestUri_s", "None"), 
identity_claim_oid_g = column_ifexists("identity_claim_oid_g", "None"), CallerIPAddress = column_ifexists("CallerIPAddress", "None"), 
clientInfo_s = column_ifexists("clientInfo_s", "None"), 
identity_claim_upn_s = column_ifexists("identity_claim_upn_s", "None"),
identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g = column_ifexists("identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g", "None")
| where ResourceType =~ "VAULTS" and ResultType =~ "Success"
| where OperationName in~ (SensitiveOperationList)
| summarize EventCount=count(), StartTimeUtc=min(TimeGenerated), EndTimeUtc=max(TimeGenerated), TimeTriggered=make_list(TimeGenerated),OperationNameList=make_set(OperationName), RequestURLList=make_set(requestUri_s), CallerIPList = make_set(CallerIPAddress),  CallerIPMax= arg_max(CallerIPAddress,*) by ResourceType, ResultType, Resource, identity_claim_upn_s, clientInfo_s, identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g
| extend timestamp = StartTimeUtc
| extend Name = tostring(split(identity_claim_upn_s,'@',0)[0]), UPNSuffix = tostring(split(identity_claim_upn_s,'@',1)[0]), AadUserId = identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g 

kind: NRT
relevantTechniques:
- T1485
description: |
  'Identifies when sensitive Azure Key Vault operations are used. This includes: VaultDelete, KeyDelete, SecretDelete, SecretPurge, KeyPurge, SecretBackup, KeyBackup.
  Any Backup operations should match with expected scheduled backup activity.'  
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: AadUserId
    columnName: AadUserId
  - identifier: Name
    columnName: Name
  - identifier: UPNSuffix
    columnName: UPNSuffix
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: CallerIPMax
name: NRT Sensitive Azure Key Vault operations
tactics:
- Impact
requiredDataConnectors:
- connectorId: AzureKeyVault
  dataTypes:
  - KeyVaultData
version: 1.0.2
id: 884ead54-cb3f-4676-a1eb-b26532d6cbfd
query: |
  let SensitiveOperationList = dynamic(
  ["VaultDelete", "KeyDelete", "SecretDelete", "SecretPurge", "KeyPurge", "SecretBackup", "KeyBackup"]);
  AzureDiagnostics
  | extend ResultType = column_ifexists("ResultType", "NoResultType"), 
  requestUri_s = column_ifexists("requestUri_s", "None"), 
  identity_claim_oid_g = column_ifexists("identity_claim_oid_g", "None"), CallerIPAddress = column_ifexists("CallerIPAddress", "None"), 
  clientInfo_s = column_ifexists("clientInfo_s", "None"), 
  identity_claim_upn_s = column_ifexists("identity_claim_upn_s", "None"),
  identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g = column_ifexists("identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g", "None")
  | where ResourceType =~ "VAULTS" and ResultType =~ "Success"
  | where OperationName in~ (SensitiveOperationList)
  | summarize EventCount=count(), StartTimeUtc=min(TimeGenerated), EndTimeUtc=max(TimeGenerated), TimeTriggered=make_list(TimeGenerated),OperationNameList=make_set(OperationName), RequestURLList=make_set(requestUri_s), CallerIPList = make_set(CallerIPAddress),  CallerIPMax= arg_max(CallerIPAddress,*) by ResourceType, ResultType, Resource, identity_claim_upn_s, clientInfo_s, identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g
  | extend timestamp = StartTimeUtc
  | extend Name = tostring(split(identity_claim_upn_s,'@',0)[0]), UPNSuffix = tostring(split(identity_claim_upn_s,'@',1)[0]), AadUserId = identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g   
status: Available
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Azure Key Vault/Analytic Rules/NRT_KeyVaultSensitiveOperations.yaml
severity: Low

{
  "$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/884ead54-cb3f-4676-a1eb-b26532d6cbfd')]",
      "kind": "NRT",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/884ead54-cb3f-4676-a1eb-b26532d6cbfd')]",
      "properties": {
        "alertRuleTemplateName": "884ead54-cb3f-4676-a1eb-b26532d6cbfd",
        "customDetails": null,
        "description": "'Identifies when sensitive Azure Key Vault operations are used. This includes: VaultDelete, KeyDelete, SecretDelete, SecretPurge, KeyPurge, SecretBackup, KeyBackup.\nAny Backup operations should match with expected scheduled backup activity.'\n",
        "displayName": "NRT Sensitive Azure Key Vault operations",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "AadUserId",
                "identifier": "AadUserId"
              },
              {
                "columnName": "Name",
                "identifier": "Name"
              },
              {
                "columnName": "UPNSuffix",
                "identifier": "UPNSuffix"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "CallerIPMax",
                "identifier": "Address"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Azure Key Vault/Analytic Rules/NRT_KeyVaultSensitiveOperations.yaml",
        "query": "let SensitiveOperationList = dynamic(\n[\"VaultDelete\", \"KeyDelete\", \"SecretDelete\", \"SecretPurge\", \"KeyPurge\", \"SecretBackup\", \"KeyBackup\"]);\nAzureDiagnostics\n| extend ResultType = column_ifexists(\"ResultType\", \"NoResultType\"), \nrequestUri_s = column_ifexists(\"requestUri_s\", \"None\"), \nidentity_claim_oid_g = column_ifexists(\"identity_claim_oid_g\", \"None\"), CallerIPAddress = column_ifexists(\"CallerIPAddress\", \"None\"), \nclientInfo_s = column_ifexists(\"clientInfo_s\", \"None\"), \nidentity_claim_upn_s = column_ifexists(\"identity_claim_upn_s\", \"None\"),\nidentity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g = column_ifexists(\"identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g\", \"None\")\n| where ResourceType =~ \"VAULTS\" and ResultType =~ \"Success\"\n| where OperationName in~ (SensitiveOperationList)\n| summarize EventCount=count(), StartTimeUtc=min(TimeGenerated), EndTimeUtc=max(TimeGenerated), TimeTriggered=make_list(TimeGenerated),OperationNameList=make_set(OperationName), RequestURLList=make_set(requestUri_s), CallerIPList = make_set(CallerIPAddress),  CallerIPMax= arg_max(CallerIPAddress,*) by ResourceType, ResultType, Resource, identity_claim_upn_s, clientInfo_s, identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g\n| extend timestamp = StartTimeUtc\n| extend Name = tostring(split(identity_claim_upn_s,'@',0)[0]), UPNSuffix = tostring(split(identity_claim_upn_s,'@',1)[0]), AadUserId = identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g \n",
        "severity": "Low",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Impact"
        ],
        "techniques": [
          "T1485"
        ],
        "templateVersion": "1.0.2"
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}