Okay, this might sound semi-malicious, but it isn't unwarranted.
I operate a kiosk at my local mall, selling body jewelry. About 5 feet away from me is a SmartScreen, maybe you've seen them before, it's basically a 72" LCD turned on its side that displays sales local stores are having and little mini-commercials as well. My problem with it is the volume, the thing is way too loud. The commercials are annoying, and when it's not a commercial, it's crappy elevator muzak that's so loud I can hardly hear my customers over it, and can't speak on the phone within a 10 foot radius. I've tried complaining about it to the mall, and they just say that they have no control over it, they are all run remotely by some company called AdSpace. They gave me the phone number, but whenever I call I'm placed on hold for an extended period of time. So I've decided to take matters into my own hands. One day while looking for a volume control, I came across two USB ports on the underside of the screen. So the next day I brought in a keyboard and plugged it in. Sure enough, it's running XP. The keyboard had a volume control knob so I turned it all the way down, and that was that. Or so I thought. The next day it was back up, and seemed like it was even louder than before. I still had my keyboard, so I just turned it down again. But about an hour later, mall security came and told me not to touch it again, someone had seen me plugging my keyboard in and reported it. I came across the Hak5 wiki page on the USB Switchblade while I was looking for an inconspicuous way to kill the volume on this thing.
My question is; is there a program(or virus, malicious or not) that will somehow disable the audio on a computer? Secondly, can I just make it into an ISO and set it up on my Cruzer with the LPInstaller program?
If no such thing exists, can anyone help me out with ideas? I know that these screens are all connected to a network of some kind, I'm not sure whether it's closed or not. If all else fails I could use the switchblade and some of its extensions to glean said information from it and try remotely connecting to it. But I'd prefer a simpler solution.
I just want to be able to hear my customers again.