Deimos Component Execution

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Id	c25a8cd4-5b4a-45a8-9ba0-3b753a652f6b
Rulename	Deimos Component Execution
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.
Severity	High
Tactics	Execution Collection Exfiltration
Techniques	T1059 T1005 T1020
Required data connectors	MicrosoftThreatProtection
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Defender XDR/Analytic Rules/Campaign/Jupyter-Solarmaker/DeimosComponentExecution.yaml
Version	1.0.0
Arm template	c25a8cd4-5b4a-45a8-9ba0-3b753a652f6b.json

KQL

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), "")

YAML

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), "")  
entityMappings:
- fieldMappings:
  - identifier: FullName
    columnName: DeviceName
  - identifier: HostName
    columnName: HostName
  - identifier: DnsDomain
    columnName: DnsDomain
  entityType: Host
triggerOperator: gt
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.
tactics:
- Execution
- Collection
- Exfiltration
severity: High
queryFrequency: 1h
kind: Scheduled
name: Deimos Component Execution
triggerThreshold: 0
status: Available
id: c25a8cd4-5b4a-45a8-9ba0-3b753a652f6b
version: 1.0.0
requiredDataConnectors:
- connectorId: MicrosoftThreatProtection
  dataTypes:
  - DeviceEvents
relevantTechniques:
- T1059
- T1005
- T1020
tags:
- SolarMarker
- Jupyter
- Ransomware
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Defender XDR/Analytic Rules/Campaign/Jupyter-Solarmaker/DeimosComponentExecution.yaml
queryPeriod: 1h

ARM