Sigma Rule Library

ImagingDevices Unusual Parent/Child Processes

Detects unusual parent or children of the ImagingDevices.exe (Windows Contacts) process as seen being used with Bumblebee activity

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Detection logic

selection_parent

ParentImage|endswith:
  - \WmiPrvSE.exe
  - \svchost.exe
  - \dllhost.exe
Image|endswith: \ImagingDevices.exe

selection_child

ParentImage|endswith: \ImagingDevices.exe

Condition

1 of selection_*

Raw YAML

title: ImagingDevices Unusual Parent/Child Processes
id: f11f2808-adb4-46c0-802a-8660db50fa99
status: test
description: Detects unusual parent or children of the ImagingDevices.exe (Windows Contacts) process as seen being used with Bumblebee activity
references:
    - https://thedfirreport.com/2022/09/26/bumblebee-round-two/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-09-27
modified: 2022-12-29
tags:
    - attack.execution
    - attack.stealth
logsource:
    category: process_creation
    product: windows
detection:
    selection_parent:
        ParentImage|endswith:
            # Add more if known
            - \WmiPrvSE.exe
            - \svchost.exe
            - \dllhost.exe
        Image|endswith: '\ImagingDevices.exe'
    selection_child:
        # You can add specific suspicious child processes (such as cmd, powershell...) to increase the accuracy
        ParentImage|endswith: '\ImagingDevices.exe'
    condition: 1 of selection_*
falsepositives:
    - Unknown
level: high

False positives

  • Unknown

References

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