SUNBURST and SUPERNOVA backdoor hashes (Normalized File Events)

Back


Id	bc5ffe2a-84d6-48fe-bc7b-1055100469bc
Rulename	SUNBURST and SUPERNOVA backdoor hashes (Normalized File Events)
Description	Identifies SolarWinds SUNBURST and SUPERNOVA backdoor file hash IOCs in File Events To use this analytics rule, make sure you have deployed the ASIM normalization parsers 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	High
Tactics	Execution Persistence InitialAccess
Techniques	T1195 T1059 T1546
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/ASimFileEvent/imFileESolarWindsSunburstSupernova.yaml
Version	1.0.5
Arm template	bc5ffe2a-84d6-48fe-bc7b-1055100469bc.json

KQL

let SunburstMD5=dynamic(["b91ce2fa41029f6955bff20079468448","02af7cec58b9a5da1c542b5a32151ba1","2c4a910a1299cdae2a4e55988a2f102e","846e27a652a5e1bfbd0ddd38a16dc865","4f2eb62fa529c0283b28d05ddd311fae"]);
let SupernovaMD5="56ceb6d0011d87b6e4d7023d7ef85676";
imFileEvent
| where TargetFileMD5 in(SunburstMD5) or TargetFileMD5 in(SupernovaMD5)
| extend
    timestamp = TimeGenerated,
    AccountCustomEntity = User, 
    HostCustomEntity = DvcHostname,
    FileHashCustomEntity = TargetFileMD5,
    AlgorithmCustomEntity = "MD5"

YAML

triggerOperator: gt
version: 1.0.5
query: |
  let SunburstMD5=dynamic(["b91ce2fa41029f6955bff20079468448","02af7cec58b9a5da1c542b5a32151ba1","2c4a910a1299cdae2a4e55988a2f102e","846e27a652a5e1bfbd0ddd38a16dc865","4f2eb62fa529c0283b28d05ddd311fae"]);
  let SupernovaMD5="56ceb6d0011d87b6e4d7023d7ef85676";
  imFileEvent
  | where TargetFileMD5 in(SunburstMD5) or TargetFileMD5 in(SupernovaMD5)
  | extend
      timestamp = TimeGenerated,
      AccountCustomEntity = User, 
      HostCustomEntity = DvcHostname,
      FileHashCustomEntity = TargetFileMD5,
      AlgorithmCustomEntity = "MD5"  
entityMappings:
- entityType: Account
  fieldMappings:
  - columnName: AccountCustomEntity
    identifier: FullName
- entityType: Host
  fieldMappings:
  - columnName: HostCustomEntity
    identifier: FullName
- entityType: FileHash
  fieldMappings:
  - columnName: AlgorithmCustomEntity
    identifier: Algorithm
  - columnName: FileHashCustomEntity
    identifier: Value
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Detections/ASimFileEvent/imFileESolarWindsSunburstSupernova.yaml
queryFrequency: 1d
requiredDataConnectors: []
metadata:
  source:
    kind: Community
  author:
    name: Yaron
  categories:
    domains:
    - Security - Threat Intelligence
  support:
    tier: Community
tags:
- Id: a3c144f9-8051-47d4-ac29-ffb0c312c910
  version: 1.0.0
name: SUNBURST and SUPERNOVA backdoor hashes (Normalized File Events)
queryPeriod: 1d
severity: High
kind: Scheduled
tactics:
- Execution
- Persistence
- InitialAccess
id: bc5ffe2a-84d6-48fe-bc7b-1055100469bc
description: |
  Identifies SolarWinds SUNBURST and SUPERNOVA backdoor file hash IOCs in File Events
  To use this analytics rule, make sure you have deployed the [ASIM normalization parsers](https://aka.ms/ASimFileEvent)
  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  
relevantTechniques:
- T1195
- T1059
- T1546
triggerThreshold: 0

ARM

{
  "$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/bc5ffe2a-84d6-48fe-bc7b-1055100469bc')]",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/bc5ffe2a-84d6-48fe-bc7b-1055100469bc')]",
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
      "kind": "Scheduled",
      "apiVersion": "2022-11-01-preview",
      "properties": {
        "displayName": "SUNBURST and SUPERNOVA backdoor hashes (Normalized File Events)",
        "description": "Identifies SolarWinds SUNBURST and SUPERNOVA backdoor file hash IOCs in File Events\nTo use this analytics rule, make sure you have deployed the [ASIM normalization parsers](https://aka.ms/ASimFileEvent)\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": "High",
        "enabled": true,
        "query": "let SunburstMD5=dynamic([\"b91ce2fa41029f6955bff20079468448\",\"02af7cec58b9a5da1c542b5a32151ba1\",\"2c4a910a1299cdae2a4e55988a2f102e\",\"846e27a652a5e1bfbd0ddd38a16dc865\",\"4f2eb62fa529c0283b28d05ddd311fae\"]);\nlet SupernovaMD5=\"56ceb6d0011d87b6e4d7023d7ef85676\";\nimFileEvent\n| where TargetFileMD5 in(SunburstMD5) or TargetFileMD5 in(SupernovaMD5)\n| extend\n    timestamp = TimeGenerated,\n    AccountCustomEntity = User, \n    HostCustomEntity = DvcHostname,\n    FileHashCustomEntity = TargetFileMD5,\n    AlgorithmCustomEntity = \"MD5\"\n",
        "queryFrequency": "P1D",
        "queryPeriod": "P1D",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0,
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Execution",
          "Persistence",
          "InitialAccess"
        ],
        "techniques": [
          "T1195",
          "T1059",
          "T1546"
        ],
        "alertRuleTemplateName": "bc5ffe2a-84d6-48fe-bc7b-1055100469bc",
        "customDetails": null,
        "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/ASimFileEvent/imFileESolarWindsSunburstSupernova.yaml",
        "templateVersion": "1.0.5",
        "tags": [
          {
            "version": "1.0.0",
            "Id": "a3c144f9-8051-47d4-ac29-ffb0c312c910"
          }
        ]
      }
    }
  ]
}