Alarming number of anomalies generated in NetBackup

NetBackupAlerts_CL
| where Category contains "ANOMALY_NEW"
| extend client =  split(Message, "client '")[1]
| extend clientName = split(client, "'")[0]
| summarize Total=count() by tostring(clientName)
| where Total >= 10

triggerThreshold: 0
suppressionEnabled: false
query: |-
  NetBackupAlerts_CL
  | where Category contains "ANOMALY_NEW"
  | extend client =  split(Message, "client '")[1]
  | extend clientName = split(client, "'")[0]
  | summarize Total=count() by tostring(clientName)
  | where Total >= 10  
techniques:
- T1110
- T1212
eventGroupingSettings:
  aggregationKind: SingleAlert
tactics:
- Discovery
- CredentialAccess
entityMappings:
- fieldMappings:
  - identifier: HostName
    columnName: clientName
  entityType: Host
requiredDataConnectors: []
kind: Scheduled
queryPeriod: 15m
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    enabled: false
    reopenClosedIncident: false
    matchingMethod: AllEntities
    lookbackDuration: PT5H
severity: Medium
id: 2e0efcd4-56d2-41df-9098-d6898a58c62b
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Veritas NetBackup/Analytic Rules/NetBackup_many_Anomalies.yaml
version: 1.0.1
description: This rule generates an incident when an alarming number of anomalies are generated in the last 15 minutes.
triggerOperator: gt
name: Alarming number of anomalies generated in NetBackup
suppressionDuration: PT5H
status: Available
queryFrequency: 15m

{
  "$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/2e0efcd4-56d2-41df-9098-d6898a58c62b')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/2e0efcd4-56d2-41df-9098-d6898a58c62b')]",
      "properties": {
        "alertRuleTemplateName": "2e0efcd4-56d2-41df-9098-d6898a58c62b",
        "customDetails": null,
        "description": "This rule generates an incident when an alarming number of anomalies are generated in the last 15 minutes.",
        "displayName": "Alarming number of anomalies generated in NetBackup",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "clientName",
                "identifier": "HostName"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "SingleAlert"
        },
        "incidentConfiguration": {
          "createIncident": true,
          "groupingConfiguration": {
            "enabled": false,
            "lookbackDuration": "PT5H",
            "matchingMethod": "AllEntities",
            "reopenClosedIncident": false
          }
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Veritas NetBackup/Analytic Rules/NetBackup_many_Anomalies.yaml",
        "query": "NetBackupAlerts_CL\n| where Category contains \"ANOMALY_NEW\"\n| extend client =  split(Message, \"client '\")[1]\n| extend clientName = split(client, \"'\")[0]\n| summarize Total=count() by tostring(clientName)\n| where Total >= 10",
        "queryFrequency": "PT15M",
        "queryPeriod": "PT15M",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT5H",
        "suppressionEnabled": false,
        "tactics": [
          "CredentialAccess",
          "Discovery"
        ],
        "techniques": [
          "T1110",
          "T1212"
        ],
        "templateVersion": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}