Windows Credential Manager Enumeration via VaultCmd.exe /listcreds

Flags VaultCmd.exe executions that enumerate saved Windows Credential Manager entries using /listcreds.

FreeUnreviewedSigmamediumv1
title: Windows Credential Manager Enumeration via VaultCmd.exe /listcreds
id: 1fd02691-b799-490a-8c5c-8aad9390c831
status: test
description: This rule detects process creation where VaultCmd.exe is executed with the /listcreds option, which enumerates credentials stored in Windows Credential Manager. Attackers may use this built-in utility to discover saved credentials for subsequent credential access. The detection relies on process creation telemetry including the executable name/path and command-line arguments.
references:
  - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1555.004/T1555.004.md#atomic-test-1---access-saved-credentials-via-vaultcmd
  - https://github.com/SigmaHQ/sigma/blob/master/rules/windows/process_creation/proc_creation_win_vaultcmd_list_creds.yml
author: frack113, Huntrule Team
date: 2022-04-08
modified: 2022-05-13
tags:
  - attack.credential-access
  - attack.t1555.004
logsource:
  category: process_creation
  product: windows
detection:
  selection_img:
    - Image|endswith: \VaultCmd.exe
    - OriginalFileName: VAULTCMD.EXE
  selection_cli:
    CommandLine|contains: "/listcreds:"
  condition: all of selection*
falsepositives:
  - Unknown
level: medium
license: DRL-1.1
related:
  - id: 58f50261-c53b-4c88-bd12-1d71f12eda4c
    type: derived

What it detects

This rule detects process creation where VaultCmd.exe is executed with the /listcreds option, which enumerates credentials stored in Windows Credential Manager. Attackers may use this built-in utility to discover saved credentials for subsequent credential access. The detection relies on process creation telemetry including the executable name/path and command-line arguments.

Known false positives

  • Unknown

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.