implementing-usb-device-control-policy

name	implementing-usb-device-control-policy
description	Implements USB device control policies to restrict unauthorized removable media access on endpoints, preventing data exfiltration and malware introduction via USB devices. Use when deploying device control via Group Policy, Intune, or EDR platforms to enforce USB restrictions. Activates for requests involving USB control, removable media policy, device control, or data loss prevention via USB.
domain	cybersecurity
subdomain	endpoint-security
tags	["endpoint","USB-control","device-control","data-loss-prevention","removable-media"]
version	1.0.0
author	mahipal
license	Apache-2.0
nist_csf	["PR.PS-01","PR.PS-02","DE.CM-01","PR.IR-01"]

Implementing USB Device Control Policy

When to Use

Use this skill when:

• Restricting USB storage devices to prevent data exfiltration or malware introduction
• Implementing device control policies via GPO, Intune, or EDR device control modules
• Creating USB whitelists for authorized devices while blocking all others
• Meeting compliance requirements for removable media control (PCI DSS, HIPAA)

Do not use for network-based DLP or cloud storage restrictions.

Prerequisites

• Active Directory GPO or Microsoft Intune for policy deployment
• Device Instance IDs of authorized USB devices
• EDR with device control module (CrowdStrike, Microsoft Defender for Endpoint)
• Understanding of USB device classes (mass storage, HID, printer, etc.)

Workflow

Step 1: Inventory Current USB Usage

# Enumerate currently connected USB devices
Get-PnpDevice -Class USB | Select-Object InstanceId, FriendlyName, Status

# Query USB storage history from registry
Get-ItemProperty "HKLM:\SYSTEM\CurrentControlSet\Enum\USBSTOR\*\*" |
  Select-Object FriendlyName, ContainerID, HardwareID

# Collect USB usage across fleet (via EDR or scripts)
# CrowdStrike: Investigate → USB Device Activity
# MDE: DeviceEvents | where ActionType == "UsbDriveMounted"

Step 2: Configure GPO Device Control

Computer Configuration → Administrative Templates → System → Removable Storage Access

- All Removable Storage classes: Deny all access → Enabled
  (Block read AND write for all removable storage)

OR for granular control:
- CD and DVD: Deny read access → Enabled
- Removable Disks: Deny write access → Enabled (read-only USB)
- Tape Drives: Deny all access → Enabled
- WPD Devices: Deny all access → Enabled

To allow specific approved USB devices:
Computer Configuration → Administrative Templates → System → Device Installation
  → Device Installation Restrictions

- Prevent installation of devices not described by other policy settings → Enabled
- Allow installation of devices that match any of these device IDs → Enabled
  Add approved Device IDs: USB\VID_0781&PID_5583 (example: SanDisk Cruzer)

Step 3: Deploy via Microsoft Defender for Endpoint

<!-- MDE Device Control policy (XML format) -->
<PolicyGroups>
  <Group Id="{d9a81dc0-1234-5678-9abc-def012345678}"
    Type= =>
    
      VID_PID
      0781_5583 
    
  



  
    
      RemovableMediaDevices
    
    
      {d9a81dc0-1234-5678-9abc-def012345678}
    
    
      Deny
      63 
      4