SAPETD-ExecutionofSensitiveFunctionModule.yaml

id: c6111e06-11e2-45eb-86ef-28313a06db35
kind: Scheduled
name: SAP ETD - Execution of Sensitive Function Module
description: |
  Identifies execution of a sensitive ABAP Function Module using the watchlists provided by the Microsoft Sentinel Solution for SAP
  
  Source Action: Execute a sensitive function module directly using SE37.
  
  *Data Sources: SAP Enterprise Thread Detection Solution -  Alerts*
severity: Medium
status: Available
requiredDataConnectors:
  - connectorId: SAPETDAlerts
    dataTypes:
      - SAPETDAlerts_CL
queryFrequency: 5m
queryPeriod: 60m
triggerOperator: gt
triggerThreshold: 0
tactics: 
  - Discovery
relevantTechniques: []
query: |
  let AuditTimeAgo = 60m;
  let minThreshold= 1;
  let minScore= 50;
  let SenseModules = _GetWatchlist('SAP - Sensitive Function Modules')
  | project trimmedFunctionModule = trim(@"\s+", FunctionModule);
  SAPETDAlerts_CL
  | where TimeGenerated > ago(AuditTimeAgo)
  | where Threshold >= minThreshold and Score >= minScore
  | where PatternName == "Critical Function module call in Test framework calls"
  | mv-expand NormalizedTriggeringEvents
  | extend sapOriginalEvent = tostring(NormalizedTriggeringEvents.OriginalEvent)
  | extend Id_ = NormalizedTriggeringEvents.Id
  | extend extracted_user_ip = tostring(NormalizedTriggeringEvents.NetworkIPAddressInitiator)
  | extend extracted_sap_user = tostring(NormalizedTriggeringEvents.UserAccountActing)
  | extend extracted_sid = tostring(NormalizedTriggeringEvents.SystemIdActor)
  | extend extracted_instance_name = tostring(NormalizedTriggeringEvents.NetworkHostnameActor)
  | extend extracted_instance_host = tostring(NormalizedTriggeringEvents.ServiceInstanceName)
  | extend extracted_function_module = trim(@"\s+", tostring(NormalizedTriggeringEvents.ServiceFunctionName))
  | extend extracted_system_role = tostring(NormalizedTriggeringEvents.SystemRoleReporter)
  | where extracted_function_module in (SenseModules)
  | extend AlertName = strcat("SAP ETD - Sensitive Function Module ", extracted_function_module," was executed by user ", extracted_sap_user, 
  " in a ", tolower(extracted_system_role), " system"), Dummy = " "
eventGroupingSettings:
  aggregationKind: SingleAlert
entityMappings:
  - entityType: CloudApplication
    fieldMappings:
      - identifier: AppId
        columnName: extracted_sid
      - identifier: InstanceName
        columnName: extracted_instance_name
  - entityType: Host
    fieldMappings:
      - identifier: FullName
        columnName: extracted_instance_host
  - entityType: IP
    fieldMappings:
      - identifier: Address
        columnName: extracted_user_ip
alertDetailsOverride:
  alertDisplayNameFormat: 'SAP ETD - {{PatternName}} '
  alertDescriptionFormat: |
    {{PatternDescription}}

    Source: SAP ETD
customDetails:
  SAP_User: extracted_sap_user
  ETD_AlertNumber: AlertId
version: 1.0.0