PowerShell Credential Manager enumeration via vaultcmd /listcreds

Flags PowerShell using vaultcmd /listcreds to enumerate Windows/Web credential manager stored entries.

FreeReviewedSigma · Medium · v2

Product: windows
Category: ps_script
Author: frack113 (SigmaHQ), DRL 1.1
Published: 2021-12-20
Updated: 2026-07-31

ATT&CK techniques

Cred Access

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1555Credentials from Password Stores
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule identifies PowerShell script block content that invokes vaultcmd to list stored credentials using the /listcreds parameter. Attackers can use this to enumerate credential entries from Windows Credential Manager categories, potentially enabling credential access before attempting further abuse. It relies on PowerShell Script Block Logging telemetry that captures ScriptBlockText containing the relevant vaultcmd and option strings.

Reporting behind it

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PowerShell Credential Manager enumeration via vaultcmd /listcreds

Pivot detection · T1555 · 9 related

Changelog

v2
Candidate ingested via manual entry.2026-07-31
v1
No changelog recorded for this version.2026-07-30

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

powershell-enumerates-stored-windows-credential-manager-entries-via-vaultcmd-lis-603c6630

title: PowerShell Credential Manager enumeration via vaultcmd /listcreds
id: 63421c5a-143a-47f3-b5e8-3be94024825a
status: test
description: This rule identifies PowerShell script block content that invokes vaultcmd to list stored credentials using the /listcreds parameter. Attackers can use this to enumerate credential entries from Windows Credential Manager categories, potentially enabling credential access before attempting further abuse. It relies on PowerShell Script Block Logging telemetry that captures ScriptBlockText containing the relevant vaultcmd and option strings.
references:
  - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1555/T1555.md
  - https://github.com/SigmaHQ/sigma/blob/master/rules/windows/powershell/powershell_script/posh_ps_enumerate_password_windows_credential_manager.yml
author: frack113, Huntrule Team
date: 2021-12-20
modified: 2022-12-25
tags:
  - attack.credential-access
  - attack.t1555
logsource:
  product: windows
  category: ps_script
  definition: "Requirements: Script Block Logging must be enabled"
detection:
  selection_cmd:
    ScriptBlockText|contains|all:
      - vaultcmd
      - "/listcreds:"
  selection_option:
    ScriptBlockText|contains:
      - Windows Credentials
      - Web Credentials
  condition: all of selection_*
falsepositives:
  - Unknown
level: medium
license: DRL-1.1
related:
  - id: 603c6630-5225-49c1-8047-26c964553e0e
    type: derived

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