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

entityMappings:
- entityType: Account
  fieldMappings:
  - columnName: AccountCustomEntity
    identifier: Name
- entityType: IP
  fieldMappings:
  - columnName: IPCustomEntity
    identifier: Address
- entityType: URL
  fieldMappings:
  - columnName: URLCustomEntity
    identifier: Url
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
eventGroupingSettings:
  aggregationKind: AlertPerResult
id: b39e6482-ab7e-4817-813d-ec910b64b26e
queryFrequency: 1h
status: Available
version: 1.0.0
severity: Medium
relevantTechniques:
- T1555
- T1087
name: Highly Sensitive Password Accessed
kind: Scheduled
tactics:
- CredentialAccess
- Discovery
requiredDataConnectors:
- dataTypes:
  - LastPassNativePoller_CL
  connectorId: LastPass
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.'
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/LastPass/Analytic%20Rules/HighlySensitivePasswordAccessed.yaml
triggerOperator: gt
triggerThreshold: 0
queryPeriod: 1h

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"
    }
  ]
}