Detection rules › Sigma
Create Volume Shadow Copy with Powershell
Adversaries may attempt to access or create a copy of the Active Directory domain database in order to steal credential information
Known false positives
- Legitimate PowerShell scripts
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: Create Volume Shadow Copy with Powershell
id: afd12fed-b0ec-45c9-a13d-aa86625dac81
status: test
description: Adversaries may attempt to access or create a copy of the Active Directory domain database in order to steal credential information
references:
- https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.management/get-wmiobject?view=powershell-5.1&viewFallbackFrom=powershell-7
author: frack113
date: 2022-01-12
tags:
- attack.credential-access
- attack.t1003.003
- attack.ds0005
logsource:
product: windows
category: ps_script
definition: 'Requirements: Script Block Logging must be enabled'
detection:
selection:
ScriptBlockText|contains|all:
- Win32_ShadowCopy
- ').Create('
- ClientAccessible
condition: selection
falsepositives:
- Legitimate PowerShell scripts
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
ScriptBlockText|contains|all:
- Win32_ShadowCopy
- ').Create('
- ClientAccessible
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
ScriptBlockText | match |
| field:"ScriptBlockText" kind:match |