Windows PowerShell: Query SMB Shares via Get-SmbShare

Alerts on PowerShell script blocks running Get-SmbShare to discover SMB shares.

FreeReviewedSigma · Low · v2
Product
windows
Category
ps_script
Author
frack113 (SigmaHQ), DRL 1.1
Published
2021-12-15
Updated
2026-07-31
title: "Windows PowerShell: Query SMB Shares via Get-SmbShare"
id: 43af32be-da09-4c65-92cf-6385e9f01641
status: test
description: This rule flags PowerShell script block content that includes the Get-SmbShare cmdlet, indicating discovery of SMB shares on remote systems. Attackers commonly use SMB share enumeration to identify accessible file locations and systems of interest before further collection or lateral movement. The detection relies on Script Block Logging telemetry capturing the cmdlet text within PowerShell execution.
references:
  - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1069.002/T1069.002.md
  - https://github.com/SigmaHQ/sigma/blob/master/rules/windows/powershell/powershell_script/posh_ps_susp_smb_share_reco.yml
author: frack113, Huntrule Team
date: 2021-12-15
modified: 2022-12-25
tags:
  - attack.discovery
  - attack.t1069.001
logsource:
  product: windows
  category: ps_script
  definition: "Requirements: Script Block Logging must be enabled"
detection:
  selection:
    ScriptBlockText|contains: get-smbshare
  condition: selection
falsepositives:
  - Unknown
level: low
license: DRL-1.1
related:
  - id: 95f0643a-ed40-467c-806b-aac9542ec5ab
    type: derived