On: Unpatchable Malware That Infects USBs

[Someone1234]

That's not how this works.

The device acts like a USB hub which happens to mount both a keyboard and a USB drive.

So unless you ban all USB hubs then this isn't workable.

[jdmichal → Someone1234]

Banning USB hubs isn't really workable either. Any keyboard which has USB slots would be blocked, for instance.