Mimecast Secure Email Gateway - Virus

MimecastSIEM_CL| where mimecastEventId_s=="mail_receipt_virus"

relevantTechniques:
- T1053
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    lookbackDuration: 1d
    enabled: true
    reopenClosedIncident: false
    matchingMethod: AllEntities
name: Mimecast Secure Email Gateway - Virus
requiredDataConnectors:
- dataTypes:
  - MimecastSIEM_CL
  connectorId: MimecastSIEMAPI
entityMappings:
- fieldMappings:
  - identifier: Sender
    columnName: Sender_s
  - identifier: Recipient
    columnName: Rcpt_s
  - identifier: Subject
    columnName: Subject_s
  entityType: MailMessage
triggerThreshold: 0
id: 30f73baa-602c-4373-8f02-04ff5e51fc7f
tactics:
- Execution
version: 1.0.0
customDetails:
  IP: IP_s
  Cphr: Cphr_s
  MsgId: MsgId_s
  RejType: RejType_s
  Error: Error_s
  TlsVer: TlsVer_s
  Dir: Dir_s
  RejInfo: RejInfo_s
  headerFrom: headerFrom_s
  Act: Act_s
  Virus: Virus_s
  RejCode: RejCode_s
alertDetailsOverride: 
queryPeriod: 15m
kind: Scheduled
eventGroupingSettings:
  aggregationKind: SingleAlert
enabled: true
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MimecastSEG/Analytic Rules/MimecastSIEM_Virus.yaml
suppressionDuration: 5h
queryFrequency: 5m
severity: Informational
suppressionEnabled: false
description: Detect threat for virus from mail receipt virus event
query: MimecastSIEM_CL| where mimecastEventId_s=="mail_receipt_virus"
triggerOperator: gt

{
  "$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/30f73baa-602c-4373-8f02-04ff5e51fc7f')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/30f73baa-602c-4373-8f02-04ff5e51fc7f')]",
      "properties": {
        "alertDetailsOverride": null,
        "alertRuleTemplateName": "30f73baa-602c-4373-8f02-04ff5e51fc7f",
        "customDetails": {
          "Act": "Act_s",
          "Cphr": "Cphr_s",
          "Dir": "Dir_s",
          "Error": "Error_s",
          "headerFrom": "headerFrom_s",
          "IP": "IP_s",
          "MsgId": "MsgId_s",
          "RejCode": "RejCode_s",
          "RejInfo": "RejInfo_s",
          "RejType": "RejType_s",
          "TlsVer": "TlsVer_s",
          "Virus": "Virus_s"
        },
        "description": "Detect threat for virus from mail receipt virus event",
        "displayName": "Mimecast Secure Email Gateway - Virus",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "MailMessage",
            "fieldMappings": [
              {
                "columnName": "Sender_s",
                "identifier": "Sender"
              },
              {
                "columnName": "Rcpt_s",
                "identifier": "Recipient"
              },
              {
                "columnName": "Subject_s",
                "identifier": "Subject"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "SingleAlert"
        },
        "incidentConfiguration": {
          "createIncident": true,
          "groupingConfiguration": {
            "enabled": true,
            "lookbackDuration": "P1D",
            "matchingMethod": "AllEntities",
            "reopenClosedIncident": false
          }
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MimecastSEG/Analytic Rules/MimecastSIEM_Virus.yaml",
        "query": "MimecastSIEM_CL| where mimecastEventId_s==\"mail_receipt_virus\"",
        "queryFrequency": "PT5M",
        "queryPeriod": "PT15M",
        "severity": "Informational",
        "subTechniques": [],
        "suppressionDuration": "PT5H",
        "suppressionEnabled": false,
        "tactics": [
          "Execution"
        ],
        "techniques": [
          "T1053"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}