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

ATT&CK techniques

Discovery

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
- T1069.001Local Groups
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

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.

Reporting behind it

Related detections9 linkedT1069.001 — drag to rearrange

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Windows PowerShell: Query SMB Shares via Get-SmbShare

Pivot detection · T1069.001 · 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.

windows-powershell-script-block-containing-get-smbshare-95f0643a

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

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