Detecting UAC bypass - modify Windows Store settings

DeviceProcessEvents
| where InitiatingProcessFileName =~ "wsreset.exe"
| where ProcessIntegrityLevel == "High"

severity: Medium
name: Detecting UAC bypass - modify Windows Store settings
requiredDataConnectors:
- dataTypes:
  - DeviceProcessEvents
  connectorId: MicrosoftThreatProtection
id: 8b8fbf9c-35d4-474b-8151-a40173521293
tactics:
- Impact
queryFrequency: 1h
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/FalconFriday/Analytic Rules/UACBypass-2-modify-ms-store.yaml
description: |
    This query identifies modification a specific registry key and then launching wsreset.exe that resets the Windows Store settings.
triggerThreshold: 0
kind: Scheduled
relevantTechniques:
- T1490
query: |
  DeviceProcessEvents
  | where InitiatingProcessFileName =~ "wsreset.exe"
  | where ProcessIntegrityLevel == "High"  
entityMappings:
- entityType: Host
  fieldMappings:
  - columnName: DeviceName
    identifier: FullName
- entityType: Account
  fieldMappings:
  - columnName: AccountSid
    identifier: Sid
  - columnName: AccountName
    identifier: Name
  - columnName: AccountDomain
    identifier: NTDomain
- entityType: Process
  fieldMappings:
  - columnName: ProcessCommandLine
    identifier: CommandLine
status: Available
version: 1.0.0
queryPeriod: 1h

{
  "$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/8b8fbf9c-35d4-474b-8151-a40173521293')]",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/8b8fbf9c-35d4-474b-8151-a40173521293')]",
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
      "kind": "Scheduled",
      "apiVersion": "2022-11-01-preview",
      "properties": {
        "displayName": "Detecting UAC bypass - modify Windows Store settings",
        "description": "This query identifies modification a specific registry key and then launching wsreset.exe that resets the Windows Store settings.\n",
        "severity": "Medium",
        "enabled": true,
        "query": "DeviceProcessEvents\n| where InitiatingProcessFileName =~ \"wsreset.exe\"\n| where ProcessIntegrityLevel == \"High\"\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0,
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Impact"
        ],
        "techniques": [
          "T1490"
        ],
        "alertRuleTemplateName": "8b8fbf9c-35d4-474b-8151-a40173521293",
        "customDetails": null,
        "entityMappings": [
          {
            "fieldMappings": [
              {
                "identifier": "FullName",
                "columnName": "DeviceName"
              }
            ],
            "entityType": "Host"
          },
          {
            "fieldMappings": [
              {
                "identifier": "Sid",
                "columnName": "AccountSid"
              },
              {
                "identifier": "Name",
                "columnName": "AccountName"
              },
              {
                "identifier": "NTDomain",
                "columnName": "AccountDomain"
              }
            ],
            "entityType": "Account"
          },
          {
            "fieldMappings": [
              {
                "identifier": "CommandLine",
                "columnName": "ProcessCommandLine"
              }
            ],
            "entityType": "Process"
          }
        ],
        "status": "Available",
        "templateVersion": "1.0.0",
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/FalconFriday/Analytic Rules/UACBypass-2-modify-ms-store.yaml"
      }
    }
  ]
}