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

triggerOperator: gt
triggerThreshold: 0
name: SUNBURST and SUPERNOVA backdoor hashes (Normalized File Events)
metadata:
  support:
    tier: Community
  categories:
    domains:
    - Security - Threat Intelligence
  source:
    kind: Community
  author:
    name: Yaron
queryPeriod: 1d
severity: High
tags:
- version: 1.0.0
  Id: a3c144f9-8051-47d4-ac29-ffb0c312c910
kind: Scheduled
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
queryFrequency: 1d
relevantTechniques:
- T1195
- T1059
- T1546
requiredDataConnectors: []
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Detections/ASimFileEvent/imFileESolarWindsSunburstSupernova.yaml
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  
tactics:
- Execution
- Persistence
- InitialAccess
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"  
id: bc5ffe2a-84d6-48fe-bc7b-1055100469bc
version: 1.0.7

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"
    }
  ]
}