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New Virtual Smart Card Created Via TpmVscMgr.EXE

Detects execution of "Tpmvscmgr.exe" to create a new virtual smart card.

Detection Query

selection_img:
  Image|endswith: \tpmvscmgr.exe
  OriginalFileName: TpmVscMgr.exe
selection_cli:
  CommandLine|contains: create
condition: all of selection_*

Author

Nasreddine Bencherchali (Nextron Systems)

Created

2023-06-15

Data Sources

windowsProcess Creation Events

Platforms

windows

References

https://learn.microsoft.com/en-us/windows/security/identity-protection/virtual-smart-cards/virtual-smart-card-tpmvscmgr

Tags

attack.execution

Raw Content

title: New Virtual Smart Card Created Via TpmVscMgr.EXE
id: c633622e-cab9-4eaa-bb13-66a1d68b3e47
status: test
description: Detects execution of "Tpmvscmgr.exe" to create a new virtual smart card.
references:
    - https://learn.microsoft.com/en-us/windows/security/identity-protection/virtual-smart-cards/virtual-smart-card-tpmvscmgr
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-06-15
tags:
    - attack.execution
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        Image|endswith: '\tpmvscmgr.exe'
        OriginalFileName: 'TpmVscMgr.exe'
    selection_cli:
        CommandLine|contains: 'create'
    condition: all of selection_*
falsepositives:
    - Legitimate usage by an administrator
level: medium