Deimos Component Execution

DeviceEvents   
| where InitiatingProcessFileName =~ "powershell.exe"
| where ActionType == "AmsiScriptContent"
| where AdditionalFields endswith '[mArS.deiMos]::inteRaCt()"}'
| project InitiatingProcessParentFileName, InitiatingProcessFileName, InitiatingProcessCommandLine, ActionType, AdditionalFields, DeviceName
| extend HostName = iff(DeviceName has '.', substring(DeviceName, 0, indexof(DeviceName, '.')), DeviceName)
| extend DnsDomain = iff(DeviceName has '.', substring(DeviceName, indexof(DeviceName, '.') + 1), "")

relevantTechniques:
- T1059
- T1005
- T1020
name: Deimos Component Execution
requiredDataConnectors:
- dataTypes:
  - DeviceEvents
  connectorId: MicrosoftThreatProtection
entityMappings:
- fieldMappings:
  - identifier: FullName
    columnName: DeviceName
  - identifier: HostName
    columnName: HostName
  - identifier: DnsDomain
    columnName: DnsDomain
  entityType: Host
triggerThreshold: 0
id: c25a8cd4-5b4a-45a8-9ba0-3b753a652f6b
tactics:
- Execution
- Collection
- Exfiltration
version: 1.0.0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Defender XDR/Analytic Rules/Campaign/Jupyter-Solarmaker/DeimosComponentExecution.yaml
queryPeriod: 1h
kind: Scheduled
tags:
- SolarMarker
- Jupyter
- Ransomware
queryFrequency: 1h
severity: High
status: Available
description: |
    Jupyter, otherwise known as SolarMarker, is a malware family and cluster of components known for its info-stealing and backdoor capabilities that mainly proliferates through search engine optimization manipulation and malicious advertising in order to successfully encourage users to download malicious templates and documents. This malware has been popular since 2020 and currently is still active as of 2021.
query: |
  DeviceEvents   
  | where InitiatingProcessFileName =~ "powershell.exe"
  | where ActionType == "AmsiScriptContent"
  | where AdditionalFields endswith '[mArS.deiMos]::inteRaCt()"}'
  | project InitiatingProcessParentFileName, InitiatingProcessFileName, InitiatingProcessCommandLine, ActionType, AdditionalFields, DeviceName
  | extend HostName = iff(DeviceName has '.', substring(DeviceName, 0, indexof(DeviceName, '.')), DeviceName)
  | extend DnsDomain = iff(DeviceName has '.', substring(DeviceName, indexof(DeviceName, '.') + 1), "")  
triggerOperator: gt

{
  "$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/c25a8cd4-5b4a-45a8-9ba0-3b753a652f6b')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/c25a8cd4-5b4a-45a8-9ba0-3b753a652f6b')]",
      "properties": {
        "alertRuleTemplateName": "c25a8cd4-5b4a-45a8-9ba0-3b753a652f6b",
        "customDetails": null,
        "description": "Jupyter, otherwise known as SolarMarker, is a malware family and cluster of components known for its info-stealing and backdoor capabilities that mainly proliferates through search engine optimization manipulation and malicious advertising in order to successfully encourage users to download malicious templates and documents. This malware has been popular since 2020 and currently is still active as of 2021.\n",
        "displayName": "Deimos Component Execution",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "DeviceName",
                "identifier": "FullName"
              },
              {
                "columnName": "HostName",
                "identifier": "HostName"
              },
              {
                "columnName": "DnsDomain",
                "identifier": "DnsDomain"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Defender XDR/Analytic Rules/Campaign/Jupyter-Solarmaker/DeimosComponentExecution.yaml",
        "query": "DeviceEvents   \n| where InitiatingProcessFileName =~ \"powershell.exe\"\n| where ActionType == \"AmsiScriptContent\"\n| where AdditionalFields endswith '[mArS.deiMos]::inteRaCt()\"}'\n| project InitiatingProcessParentFileName, InitiatingProcessFileName, InitiatingProcessCommandLine, ActionType, AdditionalFields, DeviceName\n| extend HostName = iff(DeviceName has '.', substring(DeviceName, 0, indexof(DeviceName, '.')), DeviceName)\n| extend DnsDomain = iff(DeviceName has '.', substring(DeviceName, indexof(DeviceName, '.') + 1), \"\")\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "High",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Collection",
          "Execution",
          "Exfiltration"
        ],
        "tags": [
          "SolarMarker",
          "Jupyter",
          "Ransomware"
        ],
        "techniques": [
          "T1005",
          "T1020",
          "T1059"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}