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