Malware Detection Exclusions List Updated

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Id	401e91cb-b53f-41a5-b066-1c028b3b51db
Rulename	Malware Detection Exclusions List Updated
Description	Detects when malware detection exclusions are updated. This might indicate potential compromise of backup data.
Severity	Medium
Required data connectors	Syslog SyslogAma
Kind	Scheduled
Query frequency	5m
Query period	5m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Veeam/Analytic Rules/Malware_Detection_Exclusions_List_Updated.yaml
Version	1.0.1
Arm template	401e91cb-b53f-41a5-b066-1c028b3b51db.json

KQL

Veeam_GetSecurityEvents
| where instanceId == 42280
| project
  Date = format_datetime(TimeGenerated, 'dd.MM.yyyy HH:mm'),
    DataSource = original_host,
    EventId = instanceId,
    UserName = user,
   MessageDetails = Description,
   Severity = SeverityDescription
| project Date, DataSource, EventId, UserName,MessageDetails,Severity

YAML

name: Malware Detection Exclusions List Updated
eventGroupingSettings:
  aggregationKind: AlertPerResult
id: 401e91cb-b53f-41a5-b066-1c028b3b51db
requiredDataConnectors:
- connectorId: Syslog
  dataTypes:
  - Syslog
- connectorId: SyslogAma
  dataTypes:
  - Syslog
severity: Medium
triggerThreshold: 0
version: 1.0.1
description: Detects when malware detection exclusions are updated. This might indicate potential compromise of backup data.
relevantTechniques: []
kind: Scheduled
queryPeriod: 5m
tactics: []
customDetails:
  Severity: Severity
  MessageDetails: MessageDetails
  Date: Date
  VbrHostName: DataSource
  EventId: EventId
queryFrequency: 5m
status: Available
triggerOperator: gt
query: |-
  Veeam_GetSecurityEvents
  | where instanceId == 42280
  | project
    Date = format_datetime(TimeGenerated, 'dd.MM.yyyy HH:mm'),
      DataSource = original_host,
      EventId = instanceId,
      UserName = user,
     MessageDetails = Description,
     Severity = SeverityDescription
  | project Date, DataSource, EventId, UserName,MessageDetails,Severity  
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Veeam/Analytic Rules/Malware_Detection_Exclusions_List_Updated.yaml

ARM

{
  "$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/401e91cb-b53f-41a5-b066-1c028b3b51db')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/401e91cb-b53f-41a5-b066-1c028b3b51db')]",
      "properties": {
        "alertRuleTemplateName": "401e91cb-b53f-41a5-b066-1c028b3b51db",
        "customDetails": {
          "Date": "Date",
          "EventId": "EventId",
          "MessageDetails": "MessageDetails",
          "Severity": "Severity",
          "VbrHostName": "DataSource"
        },
        "description": "Detects when malware detection exclusions are updated. This might indicate potential compromise of backup data.",
        "displayName": "Malware Detection Exclusions List Updated",
        "enabled": true,
        "entityMappings": null,
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Veeam/Analytic Rules/Malware_Detection_Exclusions_List_Updated.yaml",
        "query": "Veeam_GetSecurityEvents\n| where instanceId == 42280\n| project\n  Date = format_datetime(TimeGenerated, 'dd.MM.yyyy HH:mm'),\n    DataSource = original_host,\n    EventId = instanceId,\n    UserName = user,\n   MessageDetails = Description,\n   Severity = SeverityDescription\n| project Date, DataSource, EventId, UserName,MessageDetails,Severity",
        "queryFrequency": "PT5M",
        "queryPeriod": "PT5M",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [],
        "techniques": [],
        "templateVersion": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}