Solorigate Defender Detections | Microsoft Sentinel Analytic Rules

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Id	e70fa6e0-796a-4e85-9420-98b17b0bb749
Rulename	Solorigate Defender Detections
Description	Surfaces any Defender Alert for Solorigate Events. In Microsoft Sentinel the SecurityAlerts table includes only the Device Name of the affected device, this query joins the DeviceInfo table to clearly connect other information such as Device group, ip, logged on users etc. This way, the Microsoft Sentinel user can have all the pertinent device info in one view for all the the Solarigate Defender alerts.
Severity	High
Tactics	InitialAccess
Techniques	T1195
Required data connectors	MicrosoftDefenderAdvancedThreatProtection MicrosoftThreatProtection
Kind	Scheduled
Query frequency	1d
Query period	1d
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Detections/SecurityAlert/Solorigate-Defender-Detections.yaml
Version	1.0.5
Arm template	e70fa6e0-796a-4e85-9420-98b17b0bb749.json

KQL

DeviceInfo
| extend DeviceName = tolower(DeviceName)
| join (SecurityAlert
| where ProviderName =~ "MDATP"
| extend ThreatName = tostring(parse_json(ExtendedProperties).ThreatName)
| where ThreatName has "Solorigate"
) on $left.DeviceName == $right.CompromisedEntity
| project TimeGenerated, DisplayName, ThreatName, CompromisedEntity, PublicIP, MachineGroup, AlertSeverity, Description, LoggedOnUsers, DeviceId, TenantId
| extend HostName = tostring(split(CompromisedEntity, ".")[0]), DomainIndex = toint(indexof(CompromisedEntity, '.'))
| extend HostNameDomain = iff(DomainIndex != -1, substring(CompromisedEntity, DomainIndex + 1), CompromisedEntity)
| project-away DomainIndex

YAML

queryFrequency: 1d
triggerThreshold: 0
metadata:
  author:
    name: Microsoft Security Research
  source:
    kind: Community
  categories:
    domains:
    - Security - 0-day Vulnerability
  support:
    tier: Community
tactics:
- InitialAccess
kind: Scheduled
name: Solorigate Defender Detections
description: |
  'Surfaces any Defender Alert for Solorigate Events. In Microsoft Sentinel the SecurityAlerts table includes only the Device Name of the affected device, this query joins the DeviceInfo table to clearly connect other information such as
   Device group, ip, logged on users etc. This way, the Microsoft Sentinel user can have all the pertinent device info in one view for all the the Solarigate Defender alerts.'
version: 1.0.5
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Detections/SecurityAlert/Solorigate-Defender-Detections.yaml
relevantTechniques:
- T1195
requiredDataConnectors:
- dataTypes:
  - SecurityAlert (MDATP)
  connectorId: MicrosoftDefenderAdvancedThreatProtection
- dataTypes:
  - DeviceInfo
  connectorId: MicrosoftThreatProtection
severity: High
triggerOperator: gt
entityMappings:
- entityType: Host
  fieldMappings:
  - columnName: CompromisedEntity
    identifier: FullName
  - columnName: HostName
    identifier: HostName
  - columnName: HostNameDomain
    identifier: DnsDomain
- entityType: IP
  fieldMappings:
  - columnName: PublicIP
    identifier: Address
tags:
- Solorigate
- NOBELIUM
queryPeriod: 1d
query: |
  DeviceInfo
  | extend DeviceName = tolower(DeviceName)
  | join (SecurityAlert
  | where ProviderName =~ "MDATP"
  | extend ThreatName = tostring(parse_json(ExtendedProperties).ThreatName)
  | where ThreatName has "Solorigate"
  ) on $left.DeviceName == $right.CompromisedEntity
  | project TimeGenerated, DisplayName, ThreatName, CompromisedEntity, PublicIP, MachineGroup, AlertSeverity, Description, LoggedOnUsers, DeviceId, TenantId
  | extend HostName = tostring(split(CompromisedEntity, ".")[0]), DomainIndex = toint(indexof(CompromisedEntity, '.'))
  | extend HostNameDomain = iff(DomainIndex != -1, substring(CompromisedEntity, DomainIndex + 1), CompromisedEntity)
  | project-away DomainIndex
id: e70fa6e0-796a-4e85-9420-98b17b0bb749

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/e70fa6e0-796a-4e85-9420-98b17b0bb749')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/e70fa6e0-796a-4e85-9420-98b17b0bb749')]",
      "properties": {
        "alertRuleTemplateName": "e70fa6e0-796a-4e85-9420-98b17b0bb749",
        "customDetails": null,
        "description": "'Surfaces any Defender Alert for Solorigate Events. In Microsoft Sentinel the SecurityAlerts table includes only the Device Name of the affected device, this query joins the DeviceInfo table to clearly connect other information such as\n Device group, ip, logged on users etc. This way, the Microsoft Sentinel user can have all the pertinent device info in one view for all the the Solarigate Defender alerts.'\n",
        "displayName": "Solorigate Defender Detections",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "CompromisedEntity",
                "identifier": "FullName"
              },
              {
                "columnName": "HostName",
                "identifier": "HostName"
              },
              {
                "columnName": "HostNameDomain",
                "identifier": "DnsDomain"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "PublicIP",
                "identifier": "Address"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Detections/SecurityAlert/Solorigate-Defender-Detections.yaml",
        "query": "DeviceInfo\n| extend DeviceName = tolower(DeviceName)\n| join (SecurityAlert\n| where ProviderName =~ \"MDATP\"\n| extend ThreatName = tostring(parse_json(ExtendedProperties).ThreatName)\n| where ThreatName has \"Solorigate\"\n) on $left.DeviceName == $right.CompromisedEntity\n| project TimeGenerated, DisplayName, ThreatName, CompromisedEntity, PublicIP, MachineGroup, AlertSeverity, Description, LoggedOnUsers, DeviceId, TenantId\n| extend HostName = tostring(split(CompromisedEntity, \".\")[0]), DomainIndex = toint(indexof(CompromisedEntity, '.'))\n| extend HostNameDomain = iff(DomainIndex != -1, substring(CompromisedEntity, DomainIndex + 1), CompromisedEntity)\n| project-away DomainIndex\n",
        "queryFrequency": "P1D",
        "queryPeriod": "P1D",
        "severity": "High",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "InitialAccess"
        ],
        "tags": [
          "Solorigate",
          "NOBELIUM"
        ],
        "techniques": [
          "T1195"
        ],
        "templateVersion": "1.0.5",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}