Suspicious Copy From Or To Admin Share Or Sysvol Folder (via process_creation)
This rule detects a copy command or a copy utility execution to or from an Admin share or remote
SigmamediumWindowsv1
sigma
suspicious-copy-from-or-to-admin-share-or-sysvol-folder-via-process-creation
title: Suspicious Copy From Or To Admin Share Or Sysvol Folder (via process_creation)
id: 6f4f1482-c19f-5157-9fe9-b3b4ee66aeda
status: stable
description: This rule detects a copy command or a copy utility execution to or from an Admin share or remote
references:
- https://attack.mitre.org/techniques/T1021/002/
- https://attack.mitre.org/techniques/T1048/
- https://attack.mitre.org/techniques/T1039/
- https://twitter.com/SBousseaden/status/1211636381086339073
- https://drive.google.com/file/d/1lKya3_mLnR3UQuCoiYruO3qgu052_iS_/view
- https://www.elastic.co/guide/en/security/current/remote-file-copy-to-a-hidden-share.html
- https://www.microsoft.com/en-us/security/blog/2022/10/18/defenders-beware-a-case-for-post-ransomware-investigations/
author: Huntrule Team
date: 2026-02-06
tags:
- attack.lateral-movement
- attack.collection
- attack.exfiltration
- attack.t1039
- attack.t1048
- attack.t1021.002
logsource:
category: process_creation
product: windows
detection:
selection_target:
CommandLine|contains:
- '\\\\*\\*$'
- '\Sysvol\'
selection_other_tools:
- Image|endswith:
- '\robocopy.exe'
- '\xcopy.exe'
- OriginalFileName:
- 'robocopy.exe'
- 'XCOPY.EXE'
selection_cmd_img:
- Image|endswith: '\cmd.exe'
- OriginalFileName: 'Cmd.Exe'
selection_cmd_cli:
CommandLine|contains: 'copy'
selection_pwsh_img:
- Image|contains:
- '\powershell_ise.exe'
- '\powershell.exe'
- '\pwsh.exe'
- OriginalFileName:
- 'powershell_ise.exe'
- 'PowerShell.EXE'
- 'pwsh.dll'
selection_pwsh_cli:
CommandLine|contains:
- 'copy-item'
- 'copy '
- 'cpi '
- ' cp '
- 'move '
- ' move-item'
- ' mi '
- ' mv '
condition: selection_target and (selection_other_tools or all of selection_cmd_* or all of selection_pwsh_*)
falsepositives:
- Unknown
level: medium
Known false positives
- Unknown
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.