Highly Sensitive Password Accessed | Microsoft Sentinel Analytic Rules

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Id	b39e6482-ab7e-4817-813d-ec910b64b26e
Rulename	Highly Sensitive Password Accessed
Description	This rule will monitor access to highly sensitive passwords. Within the Watchlist called ‘LastPass’ define passwords which are deemed highly sensitive (such as password to a high privileged application). When an activity is observed against such password, an incident is created.
Severity	Medium
Tactics	CredentialAccess Discovery
Techniques	T1555 T1087
Required data connectors	LastPass
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/LastPass/Analytic%20Rules/HighlySensitivePasswordAccessed.yaml
Version	1.0.0
Arm template	b39e6482-ab7e-4817-813d-ec910b64b26e.json

KQL

let watchlist = (_GetWatchlist("LastPass") | project name);
LastPassNativePoller_CL
| where Data_s in (watchlist)
| extend AccountCustomEntity = Username_s, IPCustomEntity = IP_Address_s, URLCustomEntity = Data_s

YAML

queryFrequency: 1h
entityMappings:
- fieldMappings:
  - columnName: AccountCustomEntity
    identifier: Name
  entityType: Account
- fieldMappings:
  - columnName: IPCustomEntity
    identifier: Address
  entityType: IP
- fieldMappings:
  - columnName: URLCustomEntity
    identifier: Url
  entityType: URL
triggerThreshold: 0
triggerOperator: gt
severity: Medium
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/LastPass/Analytic%20Rules/HighlySensitivePasswordAccessed.yaml
eventGroupingSettings:
  aggregationKind: AlertPerResult
query: |
  let watchlist = (_GetWatchlist("LastPass") | project name);
  LastPassNativePoller_CL
  | where Data_s in (watchlist)
  | extend AccountCustomEntity = Username_s, IPCustomEntity = IP_Address_s, URLCustomEntity = Data_s
tactics:
- CredentialAccess
- Discovery
queryPeriod: 1h
relevantTechniques:
- T1555
- T1087
requiredDataConnectors:
- connectorId: LastPass
  dataTypes:
  - LastPassNativePoller_CL
id: b39e6482-ab7e-4817-813d-ec910b64b26e
kind: Scheduled
version: 1.0.0
description: |
  'This rule will monitor access to highly sensitive passwords.
  Within the Watchlist called 'LastPass' define passwords which are deemed highly sensitive (such as password to a high privileged application).
  When an activity is observed against such password, an incident is created.'
status: Available
name: Highly Sensitive Password Accessed

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/b39e6482-ab7e-4817-813d-ec910b64b26e')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/b39e6482-ab7e-4817-813d-ec910b64b26e')]",
      "properties": {
        "alertRuleTemplateName": "b39e6482-ab7e-4817-813d-ec910b64b26e",
        "customDetails": null,
        "description": "'This rule will monitor access to highly sensitive passwords.\nWithin the Watchlist called 'LastPass' define passwords which are deemed highly sensitive (such as password to a high privileged application).\nWhen an activity is observed against such password, an incident is created.'\n",
        "displayName": "Highly Sensitive Password Accessed",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "AccountCustomEntity",
                "identifier": "Name"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "IPCustomEntity",
                "identifier": "Address"
              }
            ]
          },
          {
            "entityType": "URL",
            "fieldMappings": [
              {
                "columnName": "URLCustomEntity",
                "identifier": "Url"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/LastPass/Analytic%20Rules/HighlySensitivePasswordAccessed.yaml",
        "query": "let watchlist = (_GetWatchlist(\"LastPass\") | project name);\nLastPassNativePoller_CL\n| where Data_s in (watchlist)\n| extend AccountCustomEntity = Username_s, IPCustomEntity = IP_Address_s, URLCustomEntity = Data_s\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CredentialAccess",
          "Discovery"
        ],
        "techniques": [
          "T1087",
          "T1555"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}