Microsoft Sentinel Analytic Rules
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Semperis DSP Well-known privileged SIDs in sIDHistory

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Idddd75d93-5b8b-4349-babe-c4e15343c5a3
RulenameSemperis DSP Well-known privileged SIDs in sIDHistory
DescriptionThis indicator looks for security principals that contain specific SIDs of accounts from built-in privileged groups within their sIDHistory attribute. This would allow those security principals to have the same privileges as those privileged accounts, but in a way that is not obvious to monitor (e.g. through group membership).
SeverityMedium
TacticsPrivilegeEscalation
DefenseEvasion
TechniquesT1134
Required data connectorsSemperisDSP
KindScheduled
Query frequency1h
Query period1h
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Semperis Directory Services Protector/Analytic Rules/SemperisDSP_WellKnownPrivilegedSIDsInsIDHistory.yaml
Version1.0.0
Arm templateddd75d93-5b8b-4349-babe-c4e15343c5a3.json
Deploy To Azure
dsp_parser
| where EventID == 9212
| where SecurityIndicatorName == "Well-known privileged SIDs in sIDHistory"
triggerOperator: gt
version: 1.0.0
query: |
  dsp_parser
  | where EventID == 9212
  | where SecurityIndicatorName == "Well-known privileged SIDs in sIDHistory"  
status: Available
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Semperis Directory Services Protector/Analytic Rules/SemperisDSP_WellKnownPrivilegedSIDsInsIDHistory.yaml
queryFrequency: 1h
requiredDataConnectors:
- connectorId: SemperisDSP
  dataTypes:
  - dsp_parser
name: Semperis DSP Well-known privileged SIDs in sIDHistory
queryPeriod: 1h
severity: Medium
kind: Scheduled
tactics:
- PrivilegeEscalation
- DefenseEvasion
id: ddd75d93-5b8b-4349-babe-c4e15343c5a3
description: |
    'This indicator looks for security principals that contain specific SIDs of accounts from built-in privileged groups within their sIDHistory attribute. This would allow those security principals to have the same privileges as those privileged accounts, but in a way that is not obvious to monitor (e.g. through group membership).'
relevantTechniques:
- T1134
triggerThreshold: 0
{
  "$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/ddd75d93-5b8b-4349-babe-c4e15343c5a3')]",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/ddd75d93-5b8b-4349-babe-c4e15343c5a3')]",
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
      "kind": "Scheduled",
      "apiVersion": "2022-11-01-preview",
      "properties": {
        "displayName": "Semperis DSP Well-known privileged SIDs in sIDHistory",
        "description": "'This indicator looks for security principals that contain specific SIDs of accounts from built-in privileged groups within their sIDHistory attribute. This would allow those security principals to have the same privileges as those privileged accounts, but in a way that is not obvious to monitor (e.g. through group membership).'\n",
        "severity": "Medium",
        "enabled": true,
        "query": "dsp_parser\n| where EventID == 9212\n| where SecurityIndicatorName == \"Well-known privileged SIDs in sIDHistory\"\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0,
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "PrivilegeEscalation",
          "DefenseEvasion"
        ],
        "techniques": [
          "T1134"
        ],
        "alertRuleTemplateName": "ddd75d93-5b8b-4349-babe-c4e15343c5a3",
        "customDetails": null,
        "entityMappings": null,
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Semperis Directory Services Protector/Analytic Rules/SemperisDSP_WellKnownPrivilegedSIDsInsIDHistory.yaml",
        "status": "Available",
        "templateVersion": "1.0.0"
      }
    }
  ]
}