Microsoft Sentinel Analytic Rules
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Silverfort - NoPacBreach Incident

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Idbdfd2c45-10a0-44e7-a90a-ba7b6bdd9ff2
RulenameSilverfort - NoPacBreach Incident
DescriptionThe NoPac vulnerability involves privilege escalation, allowing attackers to gain unauthorized access and potentially take control of an entire Active Directory domain
SeverityHigh
TacticsPrivilegeEscalation
TechniquesT1068
T1548
Required data connectorsSilverfortAma
KindScheduled
Query frequency15m
Query period15m
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Silverfort/Analytic Rules/NoPac_Breach.yaml
Version1.0.0
Arm templatebdfd2c45-10a0-44e7-a90a-ba7b6bdd9ff2.json
Deploy To Azure
CommonSecurityLog 
| where DeviceVendor has 'Silverfort'
| where DeviceProduct has 'Admin Console'
| where DeviceEventClassID == "NewIncident"
| where Message has "NoPacBreach"
| extend UserName = parse_json(replace('^""|""$', '', Message))['userName']
requiredDataConnectors:
- dataTypes:
  - CommonSecurityLog
  connectorId: SilverfortAma
triggerThreshold: 0
relevantTechniques:
- T1068
- T1548
queryPeriod: 15m
version: 1.0.0
id: bdfd2c45-10a0-44e7-a90a-ba7b6bdd9ff2
query: |-
  CommonSecurityLog 
  | where DeviceVendor has 'Silverfort'
  | where DeviceProduct has 'Admin Console'
  | where DeviceEventClassID == "NewIncident"
  | where Message has "NoPacBreach"
  | extend UserName = parse_json(replace('^""|""$', '', Message))['userName']  
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Silverfort/Analytic Rules/NoPac_Breach.yaml
entityMappings:
- fieldMappings:
  - identifier: Name
    columnName: UserName
  entityType: Account
tactics:
- PrivilegeEscalation
severity: High
name: Silverfort - NoPacBreach Incident
queryFrequency: 15m
triggerOperator: gt
kind: Scheduled
description: |
    'The NoPac vulnerability involves privilege escalation, allowing attackers to gain unauthorized access and potentially take control of an entire Active Directory domain'
{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2024-01-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/bdfd2c45-10a0-44e7-a90a-ba7b6bdd9ff2')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/bdfd2c45-10a0-44e7-a90a-ba7b6bdd9ff2')]",
      "properties": {
        "alertRuleTemplateName": "bdfd2c45-10a0-44e7-a90a-ba7b6bdd9ff2",
        "customDetails": null,
        "description": "'The NoPac vulnerability involves privilege escalation, allowing attackers to gain unauthorized access and potentially take control of an entire Active Directory domain'\n",
        "displayName": "Silverfort - NoPacBreach Incident",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "UserName",
                "identifier": "Name"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Silverfort/Analytic Rules/NoPac_Breach.yaml",
        "query": "CommonSecurityLog \n| where DeviceVendor has 'Silverfort'\n| where DeviceProduct has 'Admin Console'\n| where DeviceEventClassID == \"NewIncident\"\n| where Message has \"NoPacBreach\"\n| extend UserName = parse_json(replace('^\"\"|\"\"$', '', Message))['userName']",
        "queryFrequency": "PT15M",
        "queryPeriod": "PT15M",
        "severity": "High",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "PrivilegeEscalation"
        ],
        "techniques": [
          "T1068",
          "T1548"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}