Box - Inactive user login

let lbperiod_start = 14d;
let lbperiod_end = 7d;
let lbtime = 1h;
let active_users = BoxEvents
| where TimeGenerated between (ago(lbperiod_end) .. ago(lbtime))
| where EventType =~ 'LOGIN'
| summarize makeset(SourceName);
let inactive_users = BoxEvents
| where TimeGenerated between (ago(lbperiod_start) .. ago(lbperiod_end))
| where EventType =~ 'LOGIN'
| where SourceName !in (active_users)
| summarize makeset(SourceName);
BoxEvents
| where EventType == 'LOGIN'
| where SourceName in (inactive_users)
| extend AccountCustomEntity = SourceName

severity: Medium
name: Box - Inactive user login
requiredDataConnectors:
- dataTypes:
  - BoxEvents_CL
  connectorId: BoxDataConnector
id: edbf38d7-e170-4af2-ad50-1a05b374611b
tactics:
- InitialAccess
queryFrequency: 1h
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Box/Analytic Rules/BoxInactiveUserLogin.yaml
description: |
    'Detects user login after long inactivity period.'
triggerThreshold: 0
kind: Scheduled
relevantTechniques:
- T1078
query: |
  let lbperiod_start = 14d;
  let lbperiod_end = 7d;
  let lbtime = 1h;
  let active_users = BoxEvents
  | where TimeGenerated between (ago(lbperiod_end) .. ago(lbtime))
  | where EventType =~ 'LOGIN'
  | summarize makeset(SourceName);
  let inactive_users = BoxEvents
  | where TimeGenerated between (ago(lbperiod_start) .. ago(lbperiod_end))
  | where EventType =~ 'LOGIN'
  | where SourceName !in (active_users)
  | summarize makeset(SourceName);
  BoxEvents
  | where EventType == 'LOGIN'
  | where SourceName in (inactive_users)
  | extend AccountCustomEntity = SourceName  
entityMappings:
- entityType: Account
  fieldMappings:
  - columnName: AccountCustomEntity
    identifier: FullName
status: Available
version: 1.0.0
queryPeriod: 14d

{
  "$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/edbf38d7-e170-4af2-ad50-1a05b374611b')]",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/edbf38d7-e170-4af2-ad50-1a05b374611b')]",
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
      "kind": "Scheduled",
      "apiVersion": "2022-11-01-preview",
      "properties": {
        "displayName": "Box - Inactive user login",
        "description": "'Detects user login after long inactivity period.'\n",
        "severity": "Medium",
        "enabled": true,
        "query": "let lbperiod_start = 14d;\nlet lbperiod_end = 7d;\nlet lbtime = 1h;\nlet active_users = BoxEvents\n| where TimeGenerated between (ago(lbperiod_end) .. ago(lbtime))\n| where EventType =~ 'LOGIN'\n| summarize makeset(SourceName);\nlet inactive_users = BoxEvents\n| where TimeGenerated between (ago(lbperiod_start) .. ago(lbperiod_end))\n| where EventType =~ 'LOGIN'\n| where SourceName !in (active_users)\n| summarize makeset(SourceName);\nBoxEvents\n| where EventType == 'LOGIN'\n| where SourceName in (inactive_users)\n| extend AccountCustomEntity = SourceName\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "P14D",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0,
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "InitialAccess"
        ],
        "techniques": [
          "T1078"
        ],
        "alertRuleTemplateName": "edbf38d7-e170-4af2-ad50-1a05b374611b",
        "customDetails": null,
        "entityMappings": [
          {
            "fieldMappings": [
              {
                "identifier": "FullName",
                "columnName": "AccountCustomEntity"
              }
            ],
            "entityType": "Account"
          }
        ],
        "status": "Available",
        "templateVersion": "1.0.0",
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Box/Analytic Rules/BoxInactiveUserLogin.yaml"
      }
    }
  ]
}