Follow these instructions to test a USB device from any linux workstation.
Testing from a CLASSE Linux Workstation
Log into the linux workstation using the graphical interface
Plug in your USB device. You should see it automatically appear on your desktop. If it does not, take your device to the nearest CIT malware detection station.
Open firefox and browse to /nfs/opt/usbtest/main.html (or, type file:///nfs/opt/usbtest/main.html in your URL bar).
Click on RUN TEST
When propted for a download, select Open with, click on browse, and browse to /nfs/opt/usbtest/usbtest.sh
A web page (or tab) should appear that either claims your drive is clean or infected. If it claims your drive is infected, it means that one of the removable devices attached to your system may be infected, so please follow the instructions that appear. Please note that if you do not have any USB drives mounted (appearing on your desktop), the test probably only checked your systems CDROM drive.
right-click on the desktop icon for your device, and choose unmount