Mimecast Audit - Logon Authentication Failed

MimecastAudit_CL | where src_s !="" and auditType_s == "Logon Authentication Failed"

queryFrequency: 5m
customDetails: 
triggerThreshold: 3
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    matchingMethod: AllEntities
    lookbackDuration: 1d
    enabled: true
    reopenClosedIncident: false
relevantTechniques:
- T1110
id: 9c5dcd76-9f6d-42a3-b984-314b52678f20
triggerOperator: gt
severity: High
queryPeriod: 15m
alertDetailsOverride: 
suppressionEnabled: false
eventGroupingSettings:
  aggregationKind: SingleAlert
entityMappings:
- entityType: IP
  fieldMappings:
  - columnName: src_s
    identifier: Address
- entityType: Mailbox
  fieldMappings:
  - columnName: user_s
    identifier: MailboxPrimaryAddress
- entityType: CloudApplication
  fieldMappings:
  - columnName: app_s
    identifier: AppId
name: Mimecast Audit - Logon Authentication Failed
apiVersion: 2021-09-01-preview
kind: Scheduled
tactics:
- Discovery
- InitialAccess
- CredentialAccess
suppressionDuration: 5h
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MimecastAudit/Analytic Rules/MimecastAudit.yaml
query: MimecastAudit_CL | where src_s !="" and auditType_s == "Logon Authentication Failed"
displayName: Mimecast Audit - Logon Authentication Failed
enabled: true
alertRuleTemplateName: 
requiredDataConnectors:
- dataTypes:
  - MimecastAudit_CL
  connectorId: MimecastAuditAPI
version: 1.0.0
description: Detects threat when logon authentication failure found in audit

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/9c5dcd76-9f6d-42a3-b984-314b52678f20')]",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/9c5dcd76-9f6d-42a3-b984-314b52678f20')]",
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
      "kind": "Scheduled",
      "apiVersion": "2022-11-01-preview",
      "properties": {
        "displayName": "Mimecast Audit - Logon Authentication Failed",
        "description": "Detects threat when logon authentication failure found in audit",
        "severity": "High",
        "enabled": true,
        "query": "MimecastAudit_CL | where src_s !=\"\" and auditType_s == \"Logon Authentication Failed\"",
        "queryFrequency": "PT5M",
        "queryPeriod": "PT15M",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 3,
        "suppressionDuration": "PT5H",
        "suppressionEnabled": false,
        "tactics": [
          "Discovery",
          "InitialAccess",
          "CredentialAccess"
        ],
        "techniques": [
          "T1110"
        ],
        "alertRuleTemplateName": null,
        "incidentConfiguration": {
          "groupingConfiguration": {
            "enabled": true,
            "lookbackDuration": "P1D",
            "matchingMethod": "AllEntities",
            "reopenClosedIncident": false
          },
          "createIncident": true
        },
        "eventGroupingSettings": {
          "aggregationKind": "SingleAlert"
        },
        "alertDetailsOverride": null,
        "customDetails": null,
        "entityMappings": [
          {
            "fieldMappings": [
              {
                "identifier": "Address",
                "columnName": "src_s"
              }
            ],
            "entityType": "IP"
          },
          {
            "fieldMappings": [
              {
                "identifier": "MailboxPrimaryAddress",
                "columnName": "user_s"
              }
            ],
            "entityType": "Mailbox"
          },
          {
            "fieldMappings": [
              {
                "identifier": "AppId",
                "columnName": "app_s"
              }
            ],
            "entityType": "CloudApplication"
          }
        ],
        "apiVersion": "2021-09-01-preview",
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MimecastAudit/Analytic Rules/MimecastAudit.yaml",
        "templateVersion": "1.0.0"
      }
    }
  ]
}