SysKey Registry Keys Access

Detects handle requests and access operations to specific registry keys to calculate the SysKey

Detection logic

selection

EventID:
  - 4656
  - 4663
ObjectType: key
ObjectName|endswith:
  - lsa\JD
  - lsa\GBG
  - lsa\Skew1
  - lsa\Data

Condition

selection

Raw YAML

title: SysKey Registry Keys Access
id: 9a4ff3b8-6187-4fd2-8e8b-e0eae1129495
status: test
description: Detects handle requests and access operations to specific registry keys to calculate the SysKey
references:
    - https://threathunterplaybook.com/hunts/windows/190625-RegKeyAccessSyskey/notebook.html
author: Roberto Rodriguez @Cyb3rWard0g
date: 2019-08-12
modified: 2021-11-27
tags:
    - attack.discovery
    - attack.t1012
logsource:
    product: windows
    service: security
detection:
    selection:
        EventID:
            - 4656
            - 4663
        ObjectType: 'key'
        ObjectName|endswith:
            - 'lsa\JD'
            - 'lsa\GBG'
            - 'lsa\Skew1'
            - 'lsa\Data'
    condition: selection
falsepositives:
    - Unknown
level: high

False positives

Unknown

References

https://threathunterplaybook.com/hunts/windows/190625-RegKeyAccessSyskey/notebook.html

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