Semperis DSP Recent sIDHistory changes on AD objects

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Id	64796da3-6383-4de2-9c97-866c83c459ae
Rulename	Semperis DSP Recent sIDHistory changes on AD objects
Description	This indicator detects any recent changes to sIDHistory on AD objects, including changes to non-privileged accounts where privileged SIDs are added.
Severity	High
Tactics	PrivilegeEscalation Persistence
Techniques	T1098
Required data connectors	SemperisDSP
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/Semperis Directory Services Protector/Analytic Rules/SemperisDSP_RecentsIDHistoryChangesOnADObjects.yaml
Version	1.0.2
Arm template	64796da3-6383-4de2-9c97-866c83c459ae.json

KQL

dsp_parser
| where EventID == 9212
| where SecurityIndicatorName == "Recent sIDHistory changes on objects"
| extend NTDomain = tostring(split(UserName, '\\', 0)[0]), LoginUser = tostring(split(UserName, '\\', 1)[0])
| extend HostName = tostring(split(Computer, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Computer, '.'), 1, -1), '.'))

YAML

kind: Scheduled
query: |
  dsp_parser
  | where EventID == 9212
  | where SecurityIndicatorName == "Recent sIDHistory changes on objects"
  | extend NTDomain = tostring(split(UserName, '\\', 0)[0]), LoginUser = tostring(split(UserName, '\\', 1)[0])
  | extend HostName = tostring(split(Computer, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Computer, '.'), 1, -1), '.'))  
relevantTechniques:
- T1098
entityMappings:
- entityType: Account
  fieldMappings:
  - columnName: LoginUser
    identifier: Name
  - columnName: NTDomain
    identifier: NTDomain
- entityType: Host
  fieldMappings:
  - columnName: HostName
    identifier: HostName
  - columnName: DnsDomain
    identifier: DnsDomain
triggerOperator: gt
triggerThreshold: 0
queryPeriod: 1h
tactics:
- PrivilegeEscalation
- Persistence
id: 64796da3-6383-4de2-9c97-866c83c459ae
requiredDataConnectors:
- dataTypes:
  - dsp_parser
  connectorId: SemperisDSP
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Semperis Directory Services Protector/Analytic Rules/SemperisDSP_RecentsIDHistoryChangesOnADObjects.yaml
description: |
    'This indicator detects any recent changes to sIDHistory on AD objects, including changes to non-privileged accounts where privileged SIDs are added.'
queryFrequency: 1h
name: Semperis DSP Recent sIDHistory changes on AD objects
severity: High
version: 1.0.2
status: Available

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/64796da3-6383-4de2-9c97-866c83c459ae')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/64796da3-6383-4de2-9c97-866c83c459ae')]",
      "properties": {
        "alertRuleTemplateName": "64796da3-6383-4de2-9c97-866c83c459ae",
        "customDetails": null,
        "description": "'This indicator detects any recent changes to sIDHistory on AD objects, including changes to non-privileged accounts where privileged SIDs are added.'\n",
        "displayName": "Semperis DSP Recent sIDHistory changes on AD objects",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "LoginUser",
                "identifier": "Name"
              },
              {
                "columnName": "NTDomain",
                "identifier": "NTDomain"
              }
            ]
          },
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "HostName",
                "identifier": "HostName"
              },
              {
                "columnName": "DnsDomain",
                "identifier": "DnsDomain"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Semperis Directory Services Protector/Analytic Rules/SemperisDSP_RecentsIDHistoryChangesOnADObjects.yaml",
        "query": "dsp_parser\n| where EventID == 9212\n| where SecurityIndicatorName == \"Recent sIDHistory changes on objects\"\n| extend NTDomain = tostring(split(UserName, '\\\\', 0)[0]), LoginUser = tostring(split(UserName, '\\\\', 1)[0])\n| extend HostName = tostring(split(Computer, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Computer, '.'), 1, -1), '.'))\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "High",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Persistence",
          "PrivilegeEscalation"
        ],
        "techniques": [
          "T1098"
        ],
        "templateVersion": "1.0.2",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}