Microsoft Sentinel Analytic Rules
cloudbrothers.infoAzure Sentinel RepoToggle Dark/Light/Auto modeToggle Dark/Light/Auto modeToggle Dark/Light/Auto modeBack to homepage

Insider Risk_Microsoft Purview Insider Risk Management Alert Observed

Back
Id69660e65-0e5c-4700-8b99-5caf59786606
RulenameInsider Risk_Microsoft Purview Insider Risk Management Alert Observed
DescriptionThis 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
SeverityHigh
TacticsExecution
TechniquesT1204
Required data connectorsOfficeATP
KindScheduled
Query frequency6h
Query period6h
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MicrosoftPurviewInsiderRiskManagement/Analytic Rules/InsiderRiskM365IRMAlertObserved.yaml
Version1.1.1
Arm template69660e65-0e5c-4700-8b99-5caf59786606.json
Deploy To Azure
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
| limit 25
| extend AccountCustomEntity = UserPrincipalName
queryFrequency: 6h
entityMappings:
- entityType: Account
  fieldMappings:
  - columnName: AccountCustomEntity
    identifier: FullName
severity: High
triggerThreshold: 0
relevantTechniques:
- T1204
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 == $right.SearchKey
  | project UserPrincipalName, AlertName, ProductName, Tactics, Status, AlertLink, PreviousAlertsLinks, TimeGenerated
  | sort by TimeGenerated desc
  | limit 25
  | extend AccountCustomEntity = UserPrincipalName  
id: 69660e65-0e5c-4700-8b99-5caf59786606
triggerOperator: gt
version: 1.1.1
description: |
    'This alert is triggered when a Microsoft Purview Insider Risk Management alert is recieved in Microsoft Sentinel via the Microsoft Purview Insider Risk Management Connector. The alert extracts usernames from security alerts to provide UserPrincipalName, Alert Name, Reporting Product Name, Status, Alert Link, Previous Alerts Links, Time Generated. There is an option for configuration of correlations against Microsoft Sentinel watchlists. For more information, see [Learn about insider risk management](https://docs.microsoft.com/microsoft-365/compliance/insider-risk-management)'
queryPeriod: 6h
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MicrosoftPurviewInsiderRiskManagement/Analytic Rules/InsiderRiskM365IRMAlertObserved.yaml
requiredDataConnectors:
- connectorId: OfficeATP
  dataTypes:
  - SecurityAlert (Office 365)
name: Insider Risk_Microsoft Purview Insider Risk Management Alert Observed
tactics:
- Execution
kind: Scheduled
{
  "$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/69660e65-0e5c-4700-8b99-5caf59786606')]",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/69660e65-0e5c-4700-8b99-5caf59786606')]",
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
      "kind": "Scheduled",
      "apiVersion": "2022-11-01",
      "properties": {
        "displayName": "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](https://docs.microsoft.com/microsoft-365/compliance/insider-risk-management)'\n",
        "severity": "High",
        "enabled": true,
        "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| limit 25\n| extend AccountCustomEntity = UserPrincipalName\n",
        "queryFrequency": "PT6H",
        "queryPeriod": "PT6H",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0,
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Execution"
        ],
        "techniques": [
          "T1204"
        ],
        "alertRuleTemplateName": "69660e65-0e5c-4700-8b99-5caf59786606",
        "customDetails": null,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "identifier": "FullName",
                "columnName": "AccountCustomEntity"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MicrosoftPurviewInsiderRiskManagement/Analytic Rules/InsiderRiskM365IRMAlertObserved.yaml",
        "templateVersion": "1.1.1"
      }
    }
  ]
}