SUNBURST network beacons

Back


Id	ce1e7025-866c-41f3-9b08-ec170e05e73e
Rulename	SUNBURST network beacons
Description	Identifies SolarWinds SUNBURST domain beacon IOCs in DeviceNetworkEvents References: - https://www.fireeye.com/blog/threat-research/2020/12/evasive-attacker-leverages-solarwinds-supply-chain-compromises-with-sunburst-backdoor.html - https://gist.github.com/olafhartong/71ffdd4cab4b6acd5cbcd1a0691ff82f
Severity	Medium
Tactics	Execution Persistence InitialAccess
Techniques	T1195 T1059 T1546
Required data connectors	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/Solutions/Microsoft Defender XDR/Analytic Rules/SolarWinds_SUNBURST_Network-IOCs.yaml
Version	1.0.5
Arm template	ce1e7025-866c-41f3-9b08-ec170e05e73e.json

KQL

let SunburstURL=dynamic(["panhardware.com","databasegalore.com","avsvmcloud.com","freescanonline.com","thedoccloud.com","deftsecurity.com"]);
DeviceNetworkEvents
| where ActionType == "ConnectionSuccess"
| where RemoteUrl in(SunburstURL)
| extend HashAlgorithm = 'MD5'
| extend HostName = tostring(split(DeviceName, ".")[0]), DomainIndex = toint(indexof(DeviceName, '.'))
| extend HostNameDomain = iff(DomainIndex != -1, substring(DeviceName, DomainIndex + 1), DeviceName)

YAML

relevantTechniques:
- T1195
- T1059
- T1546
name: SUNBURST network beacons
requiredDataConnectors:
- dataTypes:
  - DeviceNetworkEvents
  connectorId: MicrosoftThreatProtection
entityMappings:
- fieldMappings:
  - identifier: FullName
    columnName: DeviceName
  - identifier: HostName
    columnName: HostName
  - identifier: DnsDomain
    columnName: HostNameDomain
  entityType: Host
- fieldMappings:
  - identifier: FullName
    columnName: InitiatingProcessAccountUpn
  - identifier: Name
    columnName: InitiatingProcessAccountName
  - identifier: UPNSuffix
    columnName: InitiatingProcessAccountDomain
  entityType: Account
- fieldMappings:
  - identifier: Address
    columnName: RemoteIP
  entityType: IP
- fieldMappings:
  - identifier: Url
    columnName: RemoteUrl
  entityType: URL
- fieldMappings:
  - identifier: Algorithm
    columnName: HashAlgorithm
  - identifier: Value
    columnName: InitiatingProcessMD5
  entityType: FileHash
triggerThreshold: 0
id: ce1e7025-866c-41f3-9b08-ec170e05e73e
tactics:
- Execution
- Persistence
- InitialAccess
version: 1.0.5
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Defender XDR/Analytic Rules/SolarWinds_SUNBURST_Network-IOCs.yaml
queryPeriod: 1d
kind: Scheduled
queryFrequency: 1d
severity: Medium
status: Available
description: |
  Identifies SolarWinds SUNBURST domain beacon IOCs in DeviceNetworkEvents
  References:
  - https://www.fireeye.com/blog/threat-research/2020/12/evasive-attacker-leverages-solarwinds-supply-chain-compromises-with-sunburst-backdoor.html
  - https://gist.github.com/olafhartong/71ffdd4cab4b6acd5cbcd1a0691ff82f  
query: |
  let SunburstURL=dynamic(["panhardware.com","databasegalore.com","avsvmcloud.com","freescanonline.com","thedoccloud.com","deftsecurity.com"]);
  DeviceNetworkEvents
  | where ActionType == "ConnectionSuccess"
  | where RemoteUrl in(SunburstURL)
  | extend HashAlgorithm = 'MD5'
  | extend HostName = tostring(split(DeviceName, ".")[0]), DomainIndex = toint(indexof(DeviceName, '.'))
  | extend HostNameDomain = iff(DomainIndex != -1, substring(DeviceName, DomainIndex + 1), DeviceName)  
triggerOperator: gt

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/ce1e7025-866c-41f3-9b08-ec170e05e73e')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/ce1e7025-866c-41f3-9b08-ec170e05e73e')]",
      "properties": {
        "alertRuleTemplateName": "ce1e7025-866c-41f3-9b08-ec170e05e73e",
        "customDetails": null,
        "description": "Identifies SolarWinds SUNBURST domain beacon IOCs in DeviceNetworkEvents\nReferences:\n- https://www.fireeye.com/blog/threat-research/2020/12/evasive-attacker-leverages-solarwinds-supply-chain-compromises-with-sunburst-backdoor.html\n- https://gist.github.com/olafhartong/71ffdd4cab4b6acd5cbcd1a0691ff82f\n",
        "displayName": "SUNBURST network beacons",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "DeviceName",
                "identifier": "FullName"
              },
              {
                "columnName": "HostName",
                "identifier": "HostName"
              },
              {
                "columnName": "HostNameDomain",
                "identifier": "DnsDomain"
              }
            ]
          },
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "InitiatingProcessAccountUpn",
                "identifier": "FullName"
              },
              {
                "columnName": "InitiatingProcessAccountName",
                "identifier": "Name"
              },
              {
                "columnName": "InitiatingProcessAccountDomain",
                "identifier": "UPNSuffix"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "RemoteIP",
                "identifier": "Address"
              }
            ]
          },
          {
            "entityType": "URL",
            "fieldMappings": [
              {
                "columnName": "RemoteUrl",
                "identifier": "Url"
              }
            ]
          },
          {
            "entityType": "FileHash",
            "fieldMappings": [
              {
                "columnName": "HashAlgorithm",
                "identifier": "Algorithm"
              },
              {
                "columnName": "InitiatingProcessMD5",
                "identifier": "Value"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Defender XDR/Analytic Rules/SolarWinds_SUNBURST_Network-IOCs.yaml",
        "query": "let SunburstURL=dynamic([\"panhardware.com\",\"databasegalore.com\",\"avsvmcloud.com\",\"freescanonline.com\",\"thedoccloud.com\",\"deftsecurity.com\"]);\nDeviceNetworkEvents\n| where ActionType == \"ConnectionSuccess\"\n| where RemoteUrl in(SunburstURL)\n| extend HashAlgorithm = 'MD5'\n| extend HostName = tostring(split(DeviceName, \".\")[0]), DomainIndex = toint(indexof(DeviceName, '.'))\n| extend HostNameDomain = iff(DomainIndex != -1, substring(DeviceName, DomainIndex + 1), DeviceName)\n",
        "queryFrequency": "P1D",
        "queryPeriod": "P1D",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Execution",
          "InitialAccess",
          "Persistence"
        ],
        "techniques": [
          "T1059",
          "T1195",
          "T1546"
        ],
        "templateVersion": "1.0.5",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}