Palo Alto WildFire Malware Detection | Microsoft Sentinel Analytic Rules

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Id	961672e7-15db-4df1-9bab-dc4f032b9b6f
Rulename	Palo Alto WildFire Malware Detection
Description	The query checks for specifically WildFire Malware and returns the result with Entities and hosts involved and count of attakcs.
Severity	High
Tactics	DefenseEvasion
Techniques	T1562
Required data connectors	PaloAltoNetworksCortex
Kind	Scheduled
Query frequency	1d
Query period	1d
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Palo%20Alto%20-%20XDR%20%28Cortex%29/Detection%20Queries/WildFire%20Malware%20Detection.yaml
Version	1.0.0
Arm template	961672e7-15db-4df1-9bab-dc4f032b9b6f.json

KQL

CommonSecurityLog
| where ingestion_time() > ago(1d)
| where DeviceVendor == "Palo Alto Networks"
| where DeviceProduct == "Cortex XDR"
| where Activity == "WildFire Malware"
| summarize (Timestamp, ReportId,Severity, AttackType)=arg_max(TimeGenerated, ExternalID, LogSeverity, Activity, SourceUserName, SourceHostName), count() by Computer
| where count_ > 5

YAML

id: 961672e7-15db-4df1-9bab-dc4f032b9b6f
entityMappings:
- fieldMappings:
  - columnName: SourceUserName
    identifier: FullName
  entityType: Account
- fieldMappings:
  - columnName: SourceHostName
    identifier: FullName
  entityType: Host
severity: High
requiredDataConnectors:
- dataTypes:
  - PaloAltoNetworksCortex
  connectorId: PaloAltoNetworksCortex
kind: Scheduled
query: |
  CommonSecurityLog
  | where ingestion_time() > ago(1d)
  | where DeviceVendor == "Palo Alto Networks"
  | where DeviceProduct == "Cortex XDR"
  | where Activity == "WildFire Malware"
  | summarize (Timestamp, ReportId,Severity, AttackType)=arg_max(TimeGenerated, ExternalID, LogSeverity, Activity, SourceUserName, SourceHostName), count() by Computer
  | where count_ > 5
name: Palo Alto WildFire Malware Detection
queryPeriod: 1d
description: |
  'The query checks for specifically WildFire Malware and returns the result with Entities and hosts involved and count of attakcs.'
tactics:
- DefenseEvasion
triggerOperator: gt
triggerThreshold: 0
relevantTechniques:
- T1562
version: 1.0.0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Palo%20Alto%20-%20XDR%20%28Cortex%29/Detection%20Queries/WildFire%20Malware%20Detection.yaml
queryFrequency: 1d

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/961672e7-15db-4df1-9bab-dc4f032b9b6f')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/961672e7-15db-4df1-9bab-dc4f032b9b6f')]",
      "properties": {
        "alertRuleTemplateName": "961672e7-15db-4df1-9bab-dc4f032b9b6f",
        "customDetails": null,
        "description": "'The query checks for specifically WildFire Malware and returns the result with Entities and hosts involved and count of attakcs.'\n",
        "displayName": "Palo Alto WildFire Malware Detection",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "SourceUserName",
                "identifier": "FullName"
              }
            ]
          },
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "SourceHostName",
                "identifier": "FullName"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Palo%20Alto%20-%20XDR%20%28Cortex%29/Detection%20Queries/WildFire%20Malware%20Detection.yaml",
        "query": "CommonSecurityLog\n| where ingestion_time() > ago(1d)\n| where DeviceVendor == \"Palo Alto Networks\"\n| where DeviceProduct == \"Cortex XDR\"\n| where Activity == \"WildFire Malware\"\n| summarize (Timestamp, ReportId,Severity, AttackType)=arg_max(TimeGenerated, ExternalID, LogSeverity, Activity, SourceUserName, SourceHostName), count() by Computer\n| where count_ > 5\n",
        "queryFrequency": "P1D",
        "queryPeriod": "P1D",
        "severity": "High",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "DefenseEvasion"
        ],
        "techniques": [
          "T1562"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}