Free Techniques For Blocking Usb Ports - Presentation Transcript
Free techniques to block USB Ports and Drives Data Loss Prevention Products and Solutions
Why should you block USB Drives?
To prevent data thefts and data losses – intentional & accidental
To prevent spreading of viruses, Trojans and worms through USB devices
Prevent loss of privacy and personal information
Preventing others from misusing the USB ports such as using IPODs, Cameras, Cell Phones etc
Devices Which can be misused on USB ports
USB Storage Drives
SD Cards
Digital Cameras
Memory Cell Phones
External Hard Drives
IPODs
Possible ways of copying data through USB devices
Copy/Cut Paste through windows
Send To <drive:>
Drag & Drop
Copy Con from DOS
XCopy from DOS
Save as to USB devices
Creating a new file in USB and copying the content
Any process or program which copies to a USB drive or device
Five ways of blocking USB drives
Using commercial and free software for blocking USB ports
Through windows registry tweaks
By making changes In BIOS
Using glue to block the USB Ports
Physically removing USB ports from your PC
Using Commercial & Free Software to Block USB drives
You can selectively block devices
No knowledge of registry etc required to, just install the software and your USB ports are secured
Monitoring of drives is possible
Printers and Other necessary devices still works
Costs Money
Free software could be malicious sometimes
Free and non reliable commercial software might make your system unstable
Pros Cons
Through windows registry tweaks
Blocks all kinds of USB drives
Its free to implement
Only basic knowledge for windows registry
Printers and Other necessary devices still works
You can not even use your own USB thumb drive
Device Monitoring is not possible
Mistakes in registry editing can make system unstable
Knowledge of registry editing is required
A user with administrative privilege can bypass this technique
Pros Cons
How to block USB with windows registry?
Click on start and then click on run
Type regedit in the textbox that appear and click ok
A registry editor window will open up, where you have two panels each on the right and left
Click on HKEY_LOCAL_MACHINE on the left panel, a list will open up
Click on SYSTEM on the opened up list and then click on CurrentControlSet in the new branch of list that opens up (see the picture 1.1 below), then again follow the same with services until you can see a usbstor in the list
Click on usbstor, and then double click on start on the right pane, a pop will appear as shown in the picture 1.2 below
Change the value field to 4, select the radiobutton to hexadecimal (if it is not already selected) and press ok
How to block USB with windows registry? Finding ControlSet key using regedit – Picture 1.1
How to block USB with windows registry? Changing USBSTOR – Picture 1.2
Blocking USB Port Through BIOS
Blocks USB Ports Completely
Its free to implement
Only basic knowledge for BIOS Settings is required
USB Port is completely blocking and nothing can be connected to the USB Ports
Device Monitoring is not possible
Necessary devices like printers also won’t work
A user can still reset the USB blocking settings if BIOS is not password protected
Pros Cons
How to block USB Ports through BIOS?
Boot your pc
Press F2 or whatever shortcut is there on your PC to access the bios
Go to advanced tab on the bios and look for USB Port
You should be able to find out an option for disabling USB ports
Save and the bios settings and reboot the machine
Few other Silly techniques to block USB drives Using glues to block the USB ports Carefully fill all your USB ports with a thick epoxy adhesive . But, this technique might damage your system and you will not be able to use even the necessary USB functions such as printers which are connected to USB ports etc. This method is highly not recommended. Physically removing USB ports from your PC Although a bit difficult, but you might also consider physically removing USB ports from your motherboard. If the USB port is onboard, then, there is a very high risk that you end up damaging your motherboard because you will have to use a soldering machine to carefully take out the USB ports. This technique faces the same disadvantages as blocking the USB ports with glues because you will never be able to use your USB ports for necessary functions such as printing etc.
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