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

kind: Scheduled
eventGroupingSettings:
  aggregationKind: AlertPerResult
description: Detects when malware detection exclusions are updated. This might indicate potential compromise of backup data.
severity: Medium
queryFrequency: 5m
customDetails:
  MessageDetails: MessageDetails
  VbrHostName: DataSource
  Date: Date
  EventId: EventId
  Severity: Severity
triggerThreshold: 0
relevantTechniques: []
status: Available
tactics: []
name: Malware Detection Exclusions List Updated
id: 401e91cb-b53f-41a5-b066-1c028b3b51db
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  
requiredDataConnectors:
- dataTypes:
  - Syslog
  connectorId: Syslog
- dataTypes:
  - Syslog
  connectorId: SyslogAma
version: 1.0.1
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Veeam/Analytic Rules/Malware_Detection_Exclusions_List_Updated.yaml
queryPeriod: 5m

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"
    }
  ]
}