Detection rules › Sigma
Enumerate Credentials from Windows Credential Manager With PowerShell
Adversaries may search for common password storage locations to obtain user credentials. Passwords are stored in several places on a system, depending on the operating system or application holding the credentials.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Credential Access |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| PowerShell | Event ID 4104: Creating Scriptblock text (MessageNumber of MessageTotal). |
Rule body
title: Enumerate Credentials from Windows Credential Manager With PowerShell
id: 603c6630-5225-49c1-8047-26c964553e0e
status: test
description: |
Adversaries may search for common password storage locations to obtain user credentials.
Passwords are stored in several places on a system, depending on the operating system or application holding the credentials.
references:
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1555/T1555.md
author: frack113
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
Stages and Predicates
Stage 0: condition
all of selection_*Stage 1: selection_cmd
selection_cmd:
ScriptBlockText|contains|all:
- vaultcmd
- '/listcreds:'
Stage 2: selection_option
selection_option:
ScriptBlockText|contains:
- 'Windows Credentials'
- 'Web Credentials'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
ScriptBlockText | match |
| field:"ScriptBlockText" kind:match |