SUNBURST suspicious SolarWinds child processes
Id | 4a3073ac-7383-48a9-90a8-eb6716183a54 |
Rulename | SUNBURST suspicious SolarWinds child processes |
Description | Identifies suspicious child processes of SolarWinds.Orion.Core.BusinessLayer.dll that may be evidence of the SUNBURST backdoor 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 |
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/Detections/DeviceProcessEvents/SolarWinds_SUNBURST_Process-IOCs.yaml |
Version | 1.0.2 |
Arm template | 4a3073ac-7383-48a9-90a8-eb6716183a54.json |
let excludeProcs = dynamic([@"\SolarWinds\Orion\APM\APMServiceControl.exe", @"\SolarWinds\Orion\ExportToPDFCmd.Exe", @"\SolarWinds.Credentials\SolarWinds.Credentials.Orion.WebApi.exe", @"\SolarWinds\Orion\Topology\SolarWinds.Orion.Topology.Calculator.exe", @"\SolarWinds\Orion\Database-Maint.exe", @"\SolarWinds.Orion.ApiPoller.Service\SolarWinds.Orion.ApiPoller.Service.exe", @"\Windows\SysWOW64\WerFault.exe"]);
DeviceProcessEvents
| where InitiatingProcessFileName =~ "solarwinds.businesslayerhost.exe"
| where not(FolderPath has_any (excludeProcs))
| extend
timestamp = TimeGenerated,
AccountCustomEntity = iff(isnotempty(InitiatingProcessAccountUpn), InitiatingProcessAccountUpn, InitiatingProcessAccountName),
HostCustomEntity = DeviceName,
AlgorithmCustomEntity = "MD5",
FileHashCustomEntity = MD5
tags:
- Solorigate
- NOBELIUM
queryPeriod: 1d
version: 1.0.2
queryFrequency: 1d
kind: Scheduled
severity: Medium
name: SUNBURST suspicious SolarWinds child processes
id: 4a3073ac-7383-48a9-90a8-eb6716183a54
entityMappings:
- fieldMappings:
- columnName: AccountCustomEntity
identifier: FullName
entityType: Account
- fieldMappings:
- columnName: HostCustomEntity
identifier: FullName
entityType: Host
- fieldMappings:
- columnName: AlgorithmCustomEntity
identifier: Algorithm
- columnName: FileHashCustomEntity
identifier: Value
entityType: FileHash
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Detections/DeviceProcessEvents/SolarWinds_SUNBURST_Process-IOCs.yaml
query: |
let excludeProcs = dynamic([@"\SolarWinds\Orion\APM\APMServiceControl.exe", @"\SolarWinds\Orion\ExportToPDFCmd.Exe", @"\SolarWinds.Credentials\SolarWinds.Credentials.Orion.WebApi.exe", @"\SolarWinds\Orion\Topology\SolarWinds.Orion.Topology.Calculator.exe", @"\SolarWinds\Orion\Database-Maint.exe", @"\SolarWinds.Orion.ApiPoller.Service\SolarWinds.Orion.ApiPoller.Service.exe", @"\Windows\SysWOW64\WerFault.exe"]);
DeviceProcessEvents
| where InitiatingProcessFileName =~ "solarwinds.businesslayerhost.exe"
| where not(FolderPath has_any (excludeProcs))
| extend
timestamp = TimeGenerated,
AccountCustomEntity = iff(isnotempty(InitiatingProcessAccountUpn), InitiatingProcessAccountUpn, InitiatingProcessAccountName),
HostCustomEntity = DeviceName,
AlgorithmCustomEntity = "MD5",
FileHashCustomEntity = MD5
tactics:
- Execution
- Persistence
description: |
Identifies suspicious child processes of SolarWinds.Orion.Core.BusinessLayer.dll that may be evidence of the SUNBURST backdoor
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
requiredDataConnectors:
- connectorId: MicrosoftThreatProtection
dataTypes:
- DeviceProcessEvents
triggerThreshold: 0
triggerOperator: gt
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"workspace": {
"type": "String"
}
},
"resources": [
{
"id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/4a3073ac-7383-48a9-90a8-eb6716183a54')]",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/4a3073ac-7383-48a9-90a8-eb6716183a54')]",
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
"kind": "Scheduled",
"apiVersion": "2022-11-01",
"properties": {
"displayName": "SUNBURST suspicious SolarWinds child processes",
"description": "Identifies suspicious child processes of SolarWinds.Orion.Core.BusinessLayer.dll that may be evidence of the SUNBURST backdoor\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",
"severity": "Medium",
"enabled": true,
"query": "let excludeProcs = dynamic([@\"\\SolarWinds\\Orion\\APM\\APMServiceControl.exe\", @\"\\SolarWinds\\Orion\\ExportToPDFCmd.Exe\", @\"\\SolarWinds.Credentials\\SolarWinds.Credentials.Orion.WebApi.exe\", @\"\\SolarWinds\\Orion\\Topology\\SolarWinds.Orion.Topology.Calculator.exe\", @\"\\SolarWinds\\Orion\\Database-Maint.exe\", @\"\\SolarWinds.Orion.ApiPoller.Service\\SolarWinds.Orion.ApiPoller.Service.exe\", @\"\\Windows\\SysWOW64\\WerFault.exe\"]);\nDeviceProcessEvents\n| where InitiatingProcessFileName =~ \"solarwinds.businesslayerhost.exe\"\n| where not(FolderPath has_any (excludeProcs))\n| extend\n timestamp = TimeGenerated,\n AccountCustomEntity = iff(isnotempty(InitiatingProcessAccountUpn), InitiatingProcessAccountUpn, InitiatingProcessAccountName),\n HostCustomEntity = DeviceName,\n AlgorithmCustomEntity = \"MD5\",\n FileHashCustomEntity = MD5\n",
"queryFrequency": "P1D",
"queryPeriod": "P1D",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0,
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"Execution",
"Persistence"
],
"alertRuleTemplateName": "4a3073ac-7383-48a9-90a8-eb6716183a54",
"customDetails": null,
"entityMappings": [
{
"fieldMappings": [
{
"identifier": "FullName",
"columnName": "AccountCustomEntity"
}
],
"entityType": "Account"
},
{
"fieldMappings": [
{
"identifier": "FullName",
"columnName": "HostCustomEntity"
}
],
"entityType": "Host"
},
{
"fieldMappings": [
{
"identifier": "Algorithm",
"columnName": "AlgorithmCustomEntity"
},
{
"identifier": "Value",
"columnName": "FileHashCustomEntity"
}
],
"entityType": "FileHash"
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Detections/DeviceProcessEvents/SolarWinds_SUNBURST_Process-IOCs.yaml",
"templateVersion": "1.0.2",
"tags": [
"Solorigate",
"NOBELIUM"
]
}
}
]
}