title: Esentutl Volume Shadow Copy Service Keys 
id: 5aad0995-46ab-41bd-a9ff-724f41114971
description: Detects the volume shadow copy service initialization and processing via esentutl. Registry keys such as HKLM\\System\\CurrentControlSet\\Services\\VSS\\Diag\\VolSnap\\Volume are captured.
status: experimental
date: 2020/10/20
modified: 2021/12/08
author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)
tags:
    - attack.credential_access
    - attack.t1003.002
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1003.002/T1003.002.md#atomic-test-3---esentutlexe-sam-copy
logsource:
    category: registry_event
    product: windows
detection:
    selection:
        TargetObject|contains: 'System\CurrentControlSet\Services\VSS'
        Image|endswith: 'esentutl.exe' # limit esentutl as in references, too many FP to filter
    filter:
        TargetObject|contains: 'System\CurrentControlSet\Services\VSS\Start'        
    condition: selection and not filter
falsepositives:
    - Unknown
level: high
