SAP ETD - Synch alerts | Microsoft Sentinel Analytic Rules

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Id	7a830484-e349-4527-85f6-7850c468c238
Rulename	SAP ETD - Synch alerts
Description	Synch alerts coming in from SAP Enterprise Threat Detection into Microsoft Sentinel (one way)
Severity	Medium
Required data connectors	SAPETDAlerts
Kind	Scheduled
Query frequency	1h
Query period	2d
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/SAP%20ETD%20Cloud/Analytic%20Rules/SAPETD-SynchAlerts.yaml
Version	1.0.4
Arm template	7a830484-e349-4527-85f6-7850c468c238.json

KQL

let minThreshold= 1;
let minScore= 50;
let lookBack= 7d;
let regex_sid = @"^([A-Z0-9]{3})/";
let regex_client = @'\/(.{3})$';
SAPETDAlerts_CL
| mv-expand NormalizedTriggeringEvents
| summarize arg_max(TimeGenerated, *) by AlertId
| where Threshold >= minThreshold and Score >= minScore
| extend
  SystemId= extract(regex_sid, 1, tostring(NormalizedTriggeringEvents.SystemIdActor)),
  ClienId= extract(regex_client, 1, tostring(NormalizedTriggeringEvents.SystemIdActor)),
  Host= NormalizedTriggeringEvents.NetworkHostnameInitiator,
  Instance= NormalizedTriggeringEvents.NetworkHostnameActor,
  User= NormalizedTriggeringEvents.UserAccountActing,
  IP= NormalizedTriggeringEvents.NetworkIPAddressInitiator
| mv-expand Users
| extend
  UserAccountName = tostring(Users.UserAccountName),
  UserEmail = tostring(Users.EmailAddresses[0]);

YAML

name: SAP ETD - Synch alerts
triggerOperator: gt
kind: Scheduled
queryFrequency: 1h
description: Synch alerts coming in from SAP Enterprise Threat Detection into Microsoft Sentinel (one way)
id: 7a830484-e349-4527-85f6-7850c468c238
triggerThreshold: 0
queryPeriod: 2d
query: |
  let minThreshold= 1;
  let minScore= 50;
  let lookBack= 7d;
  let regex_sid = @"^([A-Z0-9]{3})/";
  let regex_client = @'\/(.{3})$';
  SAPETDAlerts_CL
  | mv-expand NormalizedTriggeringEvents
  | summarize arg_max(TimeGenerated, *) by AlertId
  | where Threshold >= minThreshold and Score >= minScore
  | extend
    SystemId= extract(regex_sid, 1, tostring(NormalizedTriggeringEvents.SystemIdActor)),
    ClienId= extract(regex_client, 1, tostring(NormalizedTriggeringEvents.SystemIdActor)),
    Host= NormalizedTriggeringEvents.NetworkHostnameInitiator,
    Instance= NormalizedTriggeringEvents.NetworkHostnameActor,
    User= NormalizedTriggeringEvents.UserAccountActing,
    IP= NormalizedTriggeringEvents.NetworkIPAddressInitiator
  | mv-expand Users
  | extend
    UserAccountName = tostring(Users.UserAccountName),
    UserEmail = tostring(Users.EmailAddresses[0]);
version: 1.0.4
customDetails:
  SAP_UserEmail: UserEmail
  SAP_User: User
  ETD_AlertNumber: AlertId
status: Available
eventGroupingSettings:
  aggregationKind: AlertPerResult
severity: Medium
requiredDataConnectors:
- connectorId: SAPETDAlerts
  dataTypes:
  - SAPETDAlerts_CL
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/SAP%20ETD%20Cloud/Analytic%20Rules/SAPETD-SynchAlerts.yaml
alertDetailsOverride:
  alertDescriptionFormat: '{{PatternDescription}}'
  alertDisplayNameFormat: 'SAP ETD - {{PatternName}} '
relevantTechniques: []
tactics: []
entityMappings:
- fieldMappings:
  - identifier: Name
    columnName: UserAccountName
  entityType: Account
- fieldMappings:
  - identifier: MailboxPrimaryAddress
    columnName: UserEmail
  entityType: Mailbox
- fieldMappings:
  - identifier: Name
    columnName: SystemId
  - identifier: AppId
    columnName: ClienId
  - identifier: InstanceName
    columnName: Instance
  entityType: CloudApplication
- fieldMappings:
  - identifier: FullName
    columnName: Host
  entityType: Host
- fieldMappings:
  - identifier: Address
    columnName: IP
  entityType: IP

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/7a830484-e349-4527-85f6-7850c468c238')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/7a830484-e349-4527-85f6-7850c468c238')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "{{PatternDescription}}",
          "alertDisplayNameFormat": "SAP ETD - {{PatternName}} "
        },
        "alertRuleTemplateName": "7a830484-e349-4527-85f6-7850c468c238",
        "customDetails": {
          "ETD_AlertNumber": "AlertId",
          "SAP_User": "User",
          "SAP_UserEmail": "UserEmail"
        },
        "description": "Synch alerts coming in from SAP Enterprise Threat Detection into Microsoft Sentinel (one way)",
        "displayName": "SAP ETD - Synch alerts",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "UserAccountName",
                "identifier": "Name"
              }
            ]
          },
          {
            "entityType": "Mailbox",
            "fieldMappings": [
              {
                "columnName": "UserEmail",
                "identifier": "MailboxPrimaryAddress"
              }
            ]
          },
          {
            "entityType": "CloudApplication",
            "fieldMappings": [
              {
                "columnName": "SystemId",
                "identifier": "Name"
              },
              {
                "columnName": "ClienId",
                "identifier": "AppId"
              },
              {
                "columnName": "Instance",
                "identifier": "InstanceName"
              }
            ]
          },
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "Host",
                "identifier": "FullName"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "IP",
                "identifier": "Address"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/SAP%20ETD%20Cloud/Analytic%20Rules/SAPETD-SynchAlerts.yaml",
        "query": "let minThreshold= 1;\nlet minScore= 50;\nlet lookBack= 7d;\nlet regex_sid = @\"^([A-Z0-9]{3})/\";\nlet regex_client = @'\\/(.{3})$';\nSAPETDAlerts_CL\n| mv-expand NormalizedTriggeringEvents\n| summarize arg_max(TimeGenerated, *) by AlertId\n| where Threshold >= minThreshold and Score >= minScore\n| extend\n  SystemId= extract(regex_sid, 1, tostring(NormalizedTriggeringEvents.SystemIdActor)),\n  ClienId= extract(regex_client, 1, tostring(NormalizedTriggeringEvents.SystemIdActor)),\n  Host= NormalizedTriggeringEvents.NetworkHostnameInitiator,\n  Instance= NormalizedTriggeringEvents.NetworkHostnameActor,\n  User= NormalizedTriggeringEvents.UserAccountActing,\n  IP= NormalizedTriggeringEvents.NetworkIPAddressInitiator\n| mv-expand Users\n| extend\n  UserAccountName = tostring(Users.UserAccountName),\n  UserEmail = tostring(Users.EmailAddresses[0]);\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "P2D",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [],
        "techniques": [],
        "templateVersion": "1.0.4",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}