SUNBURST and SUPERNOVA backdoor hashes Normalized File Events

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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	1.0.7
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 AccountName = tostring(split(User, @'\')[1]), AccountNTDomain = tostring(split(User, @'\')[0])
| extend AlgorithmType = "MD5"

YAML

relevantTechniques:
- T1195
- T1059
- T1546
name: SUNBURST and SUPERNOVA backdoor hashes (Normalized File Events)
requiredDataConnectors: []
entityMappings:
- fieldMappings:
  - identifier: FullName
    columnName: User
  - identifier: Name
    columnName: AccountName
  - identifier: NTDomain
    columnName: AccountNTDomain
  entityType: Account
- fieldMappings:
  - identifier: FullName
    columnName: Dvc
  - identifier: HostName
    columnName: DvcHostname
  - identifier: DnsDomain
    columnName: DvcDomain
  entityType: Host
- fieldMappings:
  - identifier: Algorithm
    columnName: AlgorithmType
  - identifier: Value
    columnName: TargetFileMD5
  entityType: FileHash
triggerThreshold: 0
id: bc5ffe2a-84d6-48fe-bc7b-1055100469bc
tactics:
- Execution
- Persistence
- InitialAccess
version: 1.0.7
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Detections/ASimFileEvent/imFileESolarWindsSunburstSupernova.yaml
queryPeriod: 1d
kind: Scheduled
tags:
- Id: a3c144f9-8051-47d4-ac29-ffb0c312c910
  version: 1.0.0
metadata:
  categories:
    domains:
    - Security - Threat Intelligence
  author:
    name: Yaron
  support:
    tier: Community
  source:
    kind: Community
queryFrequency: 1d
severity: High
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  
query: |
  let SunburstMD5=dynamic(["b91ce2fa41029f6955bff20079468448","02af7cec58b9a5da1c542b5a32151ba1","2c4a910a1299cdae2a4e55988a2f102e","846e27a652a5e1bfbd0ddd38a16dc865","4f2eb62fa529c0283b28d05ddd311fae"]);
  let SupernovaMD5="56ceb6d0011d87b6e4d7023d7ef85676";
  imFileEvent
  | where TargetFileMD5 in (SunburstMD5) or TargetFileMD5 in (SupernovaMD5)
  | extend AccountName = tostring(split(User, @'\')[1]), AccountNTDomain = tostring(split(User, @'\')[0])
  | extend AlgorithmType = "MD5"  
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/bc5ffe2a-84d6-48fe-bc7b-1055100469bc')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/bc5ffe2a-84d6-48fe-bc7b-1055100469bc')]",
      "properties": {
        "alertRuleTemplateName": "bc5ffe2a-84d6-48fe-bc7b-1055100469bc",
        "customDetails": null,
        "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",
        "displayName": "SUNBURST and SUPERNOVA backdoor hashes (Normalized File Events)",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "User",
                "identifier": "FullName"
              },
              {
                "columnName": "AccountName",
                "identifier": "Name"
              },
              {
                "columnName": "AccountNTDomain",
                "identifier": "NTDomain"
              }
            ]
          },
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "Dvc",
                "identifier": "FullName"
              },
              {
                "columnName": "DvcHostname",
                "identifier": "HostName"
              },
              {
                "columnName": "DvcDomain",
                "identifier": "DnsDomain"
              }
            ]
          },
          {
            "entityType": "FileHash",
            "fieldMappings": [
              {
                "columnName": "AlgorithmType",
                "identifier": "Algorithm"
              },
              {
                "columnName": "TargetFileMD5",
                "identifier": "Value"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Detections/ASimFileEvent/imFileESolarWindsSunburstSupernova.yaml",
        "query": "let SunburstMD5=dynamic([\"b91ce2fa41029f6955bff20079468448\",\"02af7cec58b9a5da1c542b5a32151ba1\",\"2c4a910a1299cdae2a4e55988a2f102e\",\"846e27a652a5e1bfbd0ddd38a16dc865\",\"4f2eb62fa529c0283b28d05ddd311fae\"]);\nlet SupernovaMD5=\"56ceb6d0011d87b6e4d7023d7ef85676\";\nimFileEvent\n| where TargetFileMD5 in (SunburstMD5) or TargetFileMD5 in (SupernovaMD5)\n| extend AccountName = tostring(split(User, @'\\')[1]), AccountNTDomain = tostring(split(User, @'\\')[0])\n| extend AlgorithmType = \"MD5\"\n",
        "queryFrequency": "P1D",
        "queryPeriod": "P1D",
        "severity": "High",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Execution",
          "InitialAccess",
          "Persistence"
        ],
        "tags": [
          {
            "Id": "a3c144f9-8051-47d4-ac29-ffb0c312c910",
            "version": "1.0.0"
          }
        ],
        "techniques": [
          "T1059",
          "T1195",
          "T1546"
        ],
        "templateVersion": "1.0.7",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}