SAP ETD - Synch alerts

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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 ETD Cloud/Analytic Rules/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

status: Available
relevantTechniques: []
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]);  
eventGroupingSettings:
  aggregationKind: AlertPerResult
requiredDataConnectors:
- dataTypes:
  - SAPETDAlerts_CL
  connectorId: SAPETDAlerts
id: 7a830484-e349-4527-85f6-7850c468c238
description: Synch alerts coming in from SAP Enterprise Threat Detection into Microsoft Sentinel (one way)
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: Name
    columnName: UserAccountName
- entityType: Mailbox
  fieldMappings:
  - identifier: MailboxPrimaryAddress
    columnName: UserEmail
- entityType: CloudApplication
  fieldMappings:
  - identifier: Name
    columnName: SystemId
  - identifier: AppId
    columnName: ClienId
  - identifier: InstanceName
    columnName: Instance
- entityType: Host
  fieldMappings:
  - identifier: FullName
    columnName: Host
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: IP
queryPeriod: 2d
version: 1.0.4
severity: Medium
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/SAP ETD Cloud/Analytic Rules/SAPETD-SynchAlerts.yaml
triggerThreshold: 0
triggerOperator: gt
name: SAP ETD - Synch alerts
kind: Scheduled
queryFrequency: 1h
tactics: []
alertDetailsOverride:
  alertDescriptionFormat: '{{PatternDescription}}'
  alertDisplayNameFormat: 'SAP ETD - {{PatternName}} '
customDetails:
  SAP_UserEmail: UserEmail
  SAP_User: User
  ETD_AlertNumber: AlertId

ARM