[jlmwrite]

Flashy is an older trojan from 2006, and will attempt to copy itself to all drives connected to your computer. It changes the administrator password (to 'hacked', if memory serves) and usually disable regedit and taskmanager on your PC while making sure it starts itself after a reboot. But darned if I knew this one affected Macs. Flashy was/is definitely a PC loving kinda guy.

Edited to add the comment: The system.exe is usually indicative of a much nastier spybot that spreads by network shares, and will copy itself onto shared/networked drives -- including what it believes are flash drives -- the same way as does flashy.

BTW, the code can't execute on your Kindle. It just copies itself on there; with the logic being that the copy of itself may be on a flash drive, and an unwitting user might plug the flash drive into a fresh computer and infect it by clicking on the flashy.exe file. So your Kindle is a carrier, and I agree with the other posters that the slowness is probably due to indexing.

So if you are sure your Kindle isn't indexing, first reset it to factory defaults (meaning that you are wiping it clean). Upload your books to Dropbox or something similar, download 'em from there onto your Kindle, and DO NOT connect your Kindle to your computer. That way, you simply can't get infected.

I'd be very interested in your final outcome...