Insider Risk_Microsoft Purview Insider Risk Management Alert Observed

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Id	69660e65-0e5c-4700-8b99-5caf59786606
Rulename	Insider Risk_Microsoft Purview Insider Risk Management Alert Observed
Description	This alert is triggered when a Microsoft Purview Insider Risk Management alert is recieved in Microsoft Sentinel via the Microsoft Purview Insider Risk Management Connector. The alert extracts usernames from security alerts to provide UserPrincipalName, Alert Name, Reporting Product Name, Status, Alert Link, Previous Alerts Links, Time Generated. There is an option for configuration of correlations against Microsoft Sentinel watchlists. For more information, see Learn about insider risk management
Severity	High
Tactics	Execution
Techniques	T1204
Required data connectors	OfficeATP
Kind	Scheduled
Query frequency	6h
Query period	6h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MicrosoftPurviewInsiderRiskManagement/Analytic Rules/InsiderRiskM365IRMAlertObserved.yaml
Version	1.1.3
Arm template	69660e65-0e5c-4700-8b99-5caf59786606.json

KQL

let AlertLinks = SecurityAlert
| summarize hint.strategy = shuffle arg_max(TimeGenerated, *), NumberOfUpdates = count() by SystemAlertId
| mv-expand todynamic(Entities)
| where Entities["Type"] =~ "account"
| extend Name = tostring(tolower(Entities["Name"])), NTDomain = tostring(Entities["NTDomain"]), UPNSuffix = tostring(Entities["UPNSuffix"]), AadUserId = tostring(Entities["AadUserId"]), AadTenantId = tostring(Entities["AadTenantId"]), 
          Sid = tostring(Entities["Sid"]), IsDomainJoined = tobool(Entities["IsDomainJoined"]), Host = tostring(Entities["Host"])
| extend UPN = iff(Name != "" and UPNSuffix != "", strcat(Name, "@", UPNSuffix), "")
| extend Href_ = tostring(parse_json(ExtendedLinks)[0].Href)
| where UPN <> ""
| summarize PreciousSecurityAlertLinks=make_set(AlertLink) by UPN;
SecurityAlert
| where ProductName == "Microsoft 365 Insider Risk Management"
    | summarize hint.strategy = shuffle arg_max(TimeGenerated, *), NumberOfUpdates = count() by SystemAlertId
    | mv-expand todynamic(Entities)
    | where Entities["Type"] =~ "account"
    | extend Name = tostring(tolower(Entities["Name"])), NTDomain = tostring(Entities["NTDomain"]), UPNSuffix = tostring(Entities["UPNSuffix"]), AadUserId = tostring(Entities["AadUserId"]), AadTenantId = tostring(Entities["AadTenantId"]), 
        Sid = tostring(Entities["Sid"]), IsDomainJoined = tobool(Entities["IsDomainJoined"]), Host = tostring(Entities["Host"])
    | extend UPN = iff(Name != "" and UPNSuffix != "", strcat(Name, "@", UPNSuffix), "")
| extend Href_ = tostring(parse_json(ExtendedLinks)[0].Href)
| join kind=inner (AlertLinks) on UPN
| extend UserPrincipalName = UPN
| extend PreviousAlertsLinks = strcat(PreciousSecurityAlertLinks)
// | lookup kind=inner _GetWatchlist('<Your Watchlist Name>') on $left.UserPrincipalName == $right.SearchKey
| project UserPrincipalName, AlertName, ProductName, Tactics, Status, AlertLink, PreviousAlertsLinks, TimeGenerated
| sort by TimeGenerated desc
| extend AccountName = tostring(split(UserPrincipalName, "@")[0]), AccountUPNSuffix = tostring(split(UserPrincipalName, "@")[1])

YAML

name: Insider Risk_Microsoft Purview Insider Risk Management Alert Observed
relevantTechniques:
- T1204
incidentConfiguration:
  groupingConfiguration:
    enabled: true
    lookbackDuration: 3d
    groupByEntities:
    - Account
    reopenClosedIncident: true
    matchingMethod: Selected
  createIncident: true
eventGroupingSettings:
  aggregationKind: SingleAlert
requiredDataConnectors:
- dataTypes:
  - SecurityAlert (Office 365)
  connectorId: OfficeATP
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MicrosoftPurviewInsiderRiskManagement/Analytic Rules/InsiderRiskM365IRMAlertObserved.yaml
query: |
  let AlertLinks = SecurityAlert
  | summarize hint.strategy = shuffle arg_max(TimeGenerated, *), NumberOfUpdates = count() by SystemAlertId
  | mv-expand todynamic(Entities)
  | where Entities["Type"] =~ "account"
  | extend Name = tostring(tolower(Entities["Name"])), NTDomain = tostring(Entities["NTDomain"]), UPNSuffix = tostring(Entities["UPNSuffix"]), AadUserId = tostring(Entities["AadUserId"]), AadTenantId = tostring(Entities["AadTenantId"]), 
            Sid = tostring(Entities["Sid"]), IsDomainJoined = tobool(Entities["IsDomainJoined"]), Host = tostring(Entities["Host"])
  | extend UPN = iff(Name != "" and UPNSuffix != "", strcat(Name, "@", UPNSuffix), "")
  | extend Href_ = tostring(parse_json(ExtendedLinks)[0].Href)
  | where UPN <> ""
  | summarize PreciousSecurityAlertLinks=make_set(AlertLink) by UPN;
  SecurityAlert
  | where ProductName == "Microsoft 365 Insider Risk Management"
      | summarize hint.strategy = shuffle arg_max(TimeGenerated, *), NumberOfUpdates = count() by SystemAlertId
      | mv-expand todynamic(Entities)
      | where Entities["Type"] =~ "account"
      | extend Name = tostring(tolower(Entities["Name"])), NTDomain = tostring(Entities["NTDomain"]), UPNSuffix = tostring(Entities["UPNSuffix"]), AadUserId = tostring(Entities["AadUserId"]), AadTenantId = tostring(Entities["AadTenantId"]), 
          Sid = tostring(Entities["Sid"]), IsDomainJoined = tobool(Entities["IsDomainJoined"]), Host = tostring(Entities["Host"])
      | extend UPN = iff(Name != "" and UPNSuffix != "", strcat(Name, "@", UPNSuffix), "")
  | extend Href_ = tostring(parse_json(ExtendedLinks)[0].Href)
  | join kind=inner (AlertLinks) on UPN
  | extend UserPrincipalName = UPN
  | extend PreviousAlertsLinks = strcat(PreciousSecurityAlertLinks)
  // | lookup kind=inner _GetWatchlist('<Your Watchlist Name>') on $left.UserPrincipalName == $right.SearchKey
  | project UserPrincipalName, AlertName, ProductName, Tactics, Status, AlertLink, PreviousAlertsLinks, TimeGenerated
  | sort by TimeGenerated desc
  | extend AccountName = tostring(split(UserPrincipalName, "@")[0]), AccountUPNSuffix = tostring(split(UserPrincipalName, "@")[1])  
tactics:
- Execution
description: |
    'This alert is triggered when a Microsoft Purview Insider Risk Management alert is recieved in Microsoft Sentinel via the Microsoft Purview Insider Risk Management Connector. The alert extracts usernames from security alerts to provide UserPrincipalName, Alert Name, Reporting Product Name, Status, Alert Link, Previous Alerts Links, Time Generated. There is an option for configuration of correlations against Microsoft Sentinel watchlists. For more information, see [Learn about insider risk management](https://docs.microsoft.com/microsoft-365/compliance/insider-risk-management)'
entityMappings:
- fieldMappings:
  - columnName: UserPrincipalName
    identifier: FullName
  - columnName: AccountName
    identifier: Name
  - columnName: AccountUPNSuffix
    identifier: UPNSuffix
  entityType: Account
queryFrequency: 6h
triggerOperator: gt
version: 1.1.3
queryPeriod: 6h
kind: Scheduled
severity: High
triggerThreshold: 0
id: 69660e65-0e5c-4700-8b99-5caf59786606

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/69660e65-0e5c-4700-8b99-5caf59786606')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/69660e65-0e5c-4700-8b99-5caf59786606')]",
      "properties": {
        "alertRuleTemplateName": "69660e65-0e5c-4700-8b99-5caf59786606",
        "customDetails": null,
        "description": "'This alert is triggered when a Microsoft Purview Insider Risk Management alert is recieved in Microsoft Sentinel via the Microsoft Purview Insider Risk Management Connector. The alert extracts usernames from security alerts to provide UserPrincipalName, Alert Name, Reporting Product Name, Status, Alert Link, Previous Alerts Links, Time Generated. There is an option for configuration of correlations against Microsoft Sentinel watchlists. For more information, see [Learn about insider risk management](https://docs.microsoft.com/microsoft-365/compliance/insider-risk-management)'\n",
        "displayName": "Insider Risk_Microsoft Purview Insider Risk Management Alert Observed",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "UserPrincipalName",
                "identifier": "FullName"
              },
              {
                "columnName": "AccountName",
                "identifier": "Name"
              },
              {
                "columnName": "AccountUPNSuffix",
                "identifier": "UPNSuffix"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "SingleAlert"
        },
        "incidentConfiguration": {
          "createIncident": true,
          "groupingConfiguration": {
            "enabled": true,
            "groupByEntities": [
              "Account"
            ],
            "lookbackDuration": "P3D",
            "matchingMethod": "Selected",
            "reopenClosedIncident": true
          }
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MicrosoftPurviewInsiderRiskManagement/Analytic Rules/InsiderRiskM365IRMAlertObserved.yaml",
        "query": "let AlertLinks = SecurityAlert\n| summarize hint.strategy = shuffle arg_max(TimeGenerated, *), NumberOfUpdates = count() by SystemAlertId\n| mv-expand todynamic(Entities)\n| where Entities[\"Type\"] =~ \"account\"\n| extend Name = tostring(tolower(Entities[\"Name\"])), NTDomain = tostring(Entities[\"NTDomain\"]), UPNSuffix = tostring(Entities[\"UPNSuffix\"]), AadUserId = tostring(Entities[\"AadUserId\"]), AadTenantId = tostring(Entities[\"AadTenantId\"]), \n          Sid = tostring(Entities[\"Sid\"]), IsDomainJoined = tobool(Entities[\"IsDomainJoined\"]), Host = tostring(Entities[\"Host\"])\n| extend UPN = iff(Name != \"\" and UPNSuffix != \"\", strcat(Name, \"@\", UPNSuffix), \"\")\n| extend Href_ = tostring(parse_json(ExtendedLinks)[0].Href)\n| where UPN <> \"\"\n| summarize PreciousSecurityAlertLinks=make_set(AlertLink) by UPN;\nSecurityAlert\n| where ProductName == \"Microsoft 365 Insider Risk Management\"\n    | summarize hint.strategy = shuffle arg_max(TimeGenerated, *), NumberOfUpdates = count() by SystemAlertId\n    | mv-expand todynamic(Entities)\n    | where Entities[\"Type\"] =~ \"account\"\n    | extend Name = tostring(tolower(Entities[\"Name\"])), NTDomain = tostring(Entities[\"NTDomain\"]), UPNSuffix = tostring(Entities[\"UPNSuffix\"]), AadUserId = tostring(Entities[\"AadUserId\"]), AadTenantId = tostring(Entities[\"AadTenantId\"]), \n        Sid = tostring(Entities[\"Sid\"]), IsDomainJoined = tobool(Entities[\"IsDomainJoined\"]), Host = tostring(Entities[\"Host\"])\n    | extend UPN = iff(Name != \"\" and UPNSuffix != \"\", strcat(Name, \"@\", UPNSuffix), \"\")\n| extend Href_ = tostring(parse_json(ExtendedLinks)[0].Href)\n| join kind=inner (AlertLinks) on UPN\n| extend UserPrincipalName = UPN\n| extend PreviousAlertsLinks = strcat(PreciousSecurityAlertLinks)\n// | lookup kind=inner _GetWatchlist('<Your Watchlist Name>') on $left.UserPrincipalName == $right.SearchKey\n| project UserPrincipalName, AlertName, ProductName, Tactics, Status, AlertLink, PreviousAlertsLinks, TimeGenerated\n| sort by TimeGenerated desc\n| extend AccountName = tostring(split(UserPrincipalName, \"@\")[0]), AccountUPNSuffix = tostring(split(UserPrincipalName, \"@\")[1])\n",
        "queryFrequency": "PT6H",
        "queryPeriod": "PT6H",
        "severity": "High",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Execution"
        ],
        "techniques": [
          "T1204"
        ],
        "templateVersion": "1.1.3",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}