Microsoft Sentinel Analytic Rules
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Semperis DSP Failed Logons

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Id0e105444-fe13-4ce6-9239-21880076a3f9
RulenameSemperis DSP Failed Logons
DescriptionAlerts when there are failed logons in the DSP system.
SeverityMedium
TacticsInitialAccess
CredentialAccess
TechniquesT1078
T1110
Required data connectorsSemperisDSP
KindScheduled
Query frequency30m
Query period30m
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Semperis Directory Services Protector/Analytic Rules/Semperis_DSP_Failed_Logons.yaml
Version2.0.7
Arm template0e105444-fe13-4ce6-9239-21880076a3f9.json
Deploy To Azure
SecurityEvent
| where EventSourceName == 'Semperis-Operation-Log' and EventID == 20002
| sort by TimeGenerated desc 
| extend p1Xml = parse_xml(EventData).EventData.Data
| mv-expand bagexpansion=array p1Xml
| evaluate bag_unpack(p1Xml)
| extend Name=column_ifexists('@Name', ''), Value=column_ifexists('#text', '')
| evaluate pivot(Name, any(Value), TimeGenerated, EventSourceName, Channel, Computer, Level, EventLevelName, EventID, Task, Type, _ResourceId)
| extend det = column_ifexists('details', '')
| parse det with * "Trustee Name: " TrusteeName " Correlation ID: " * " Source: " HostIP "WebSite Target" *
| extend host = tostring(HostIP)
| extend HostIP = trim_end(":", HostIP)
| project TimeGenerated, TrusteeName, HostIP, _ResourceId
| extend NTDomain = tostring(split(TrusteeName, '\\', 0)[0]), Name = tostring(split(TrusteeName, '\\', 1)[0]) 
entityMappings:
- fieldMappings:
  - columnName: HostIP
    identifier: Address
  entityType: IP
- fieldMappings:
  - columnName: Name
    identifier: Name
  - columnName: NTDomain
    identifier: NTDomain
  entityType: Account
triggerThreshold: 0
severity: Medium
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Semperis Directory Services Protector/Analytic Rules/Semperis_DSP_Failed_Logons.yaml
queryFrequency: 30m
status: Available
relevantTechniques:
- T1078
- T1110
triggerOperator: gt
version: 2.0.7
id: 0e105444-fe13-4ce6-9239-21880076a3f9
requiredDataConnectors:
- connectorId: SemperisDSP
  dataTypes:
  - dsp_parser
alertDetailsOverride:
  alertDisplayNameFormat: Failed Logon -- Alert from Semperis Directory Services Protector
  alertDescriptionFormat: A failed logon was detected to the DSP system.
name: Semperis DSP Failed Logons
eventGroupingSettings:
  aggregationKind: SingleAlert
description: |
    'Alerts when there are failed logons in the DSP system.'
query: |
  SecurityEvent
  | where EventSourceName == 'Semperis-Operation-Log' and EventID == 20002
  | sort by TimeGenerated desc 
  | extend p1Xml = parse_xml(EventData).EventData.Data
  | mv-expand bagexpansion=array p1Xml
  | evaluate bag_unpack(p1Xml)
  | extend Name=column_ifexists('@Name', ''), Value=column_ifexists('#text', '')
  | evaluate pivot(Name, any(Value), TimeGenerated, EventSourceName, Channel, Computer, Level, EventLevelName, EventID, Task, Type, _ResourceId)
  | extend det = column_ifexists('details', '')
  | parse det with * "Trustee Name: " TrusteeName " Correlation ID: " * " Source: " HostIP "WebSite Target" *
  | extend host = tostring(HostIP)
  | extend HostIP = trim_end(":", HostIP)
  | project TimeGenerated, TrusteeName, HostIP, _ResourceId
  | extend NTDomain = tostring(split(TrusteeName, '\\', 0)[0]), Name = tostring(split(TrusteeName, '\\', 1)[0])   
tactics:
- InitialAccess
- CredentialAccess
queryPeriod: 30m
kind: Scheduled
{
  "$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/0e105444-fe13-4ce6-9239-21880076a3f9')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/0e105444-fe13-4ce6-9239-21880076a3f9')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "A failed logon was detected to the DSP system.",
          "alertDisplayNameFormat": "Failed Logon -- Alert from Semperis Directory Services Protector"
        },
        "alertRuleTemplateName": "0e105444-fe13-4ce6-9239-21880076a3f9",
        "customDetails": null,
        "description": "'Alerts when there are failed logons in the DSP system.'\n",
        "displayName": "Semperis DSP Failed Logons",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "HostIP",
                "identifier": "Address"
              }
            ]
          },
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "Name",
                "identifier": "Name"
              },
              {
                "columnName": "NTDomain",
                "identifier": "NTDomain"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "SingleAlert"
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Semperis Directory Services Protector/Analytic Rules/Semperis_DSP_Failed_Logons.yaml",
        "query": "SecurityEvent\n| where EventSourceName == 'Semperis-Operation-Log' and EventID == 20002\n| sort by TimeGenerated desc \n| extend p1Xml = parse_xml(EventData).EventData.Data\n| mv-expand bagexpansion=array p1Xml\n| evaluate bag_unpack(p1Xml)\n| extend Name=column_ifexists('@Name', ''), Value=column_ifexists('#text', '')\n| evaluate pivot(Name, any(Value), TimeGenerated, EventSourceName, Channel, Computer, Level, EventLevelName, EventID, Task, Type, _ResourceId)\n| extend det = column_ifexists('details', '')\n| parse det with * \"Trustee Name: \" TrusteeName \" Correlation ID: \" * \" Source: \" HostIP \"WebSite Target\" *\n| extend host = tostring(HostIP)\n| extend HostIP = trim_end(\":\", HostIP)\n| project TimeGenerated, TrusteeName, HostIP, _ResourceId\n| extend NTDomain = tostring(split(TrusteeName, '\\\\', 0)[0]), Name = tostring(split(TrusteeName, '\\\\', 1)[0]) \n",
        "queryFrequency": "PT30M",
        "queryPeriod": "PT30M",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CredentialAccess",
          "InitialAccess"
        ],
        "techniques": [
          "T1078",
          "T1110"
        ],
        "templateVersion": "2.0.7",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}