We have a PC with firmware malware on - at least - both DVDs. I don't know if it's worth recovering the system, but I definitely want to find diagnostics for identifying infections and vectors on the rest of the LAN. Booting a DVD live-image of ubuntu, invocations of firefox are intercepted and come up as "JON recovery system" or some such. The attack vector may have been the old XP system on the harddrive, but equally it may have been one of the ubuntu images. It is a medion PC, article number 10002328, and there are firmware updates at the manufacturer. I'm unsure how to securely install, given that the DVDs are compromised, and I have no way to verify the cardreader or motherboard BIOS or harddrive. (I could map/update the bootsector of the harddrive, but I haven't checked what may be available to work with the firmware.) Would putting the infected DVD drives on another system, sans media, risk infecting the new system? Conversely, let's say I swap in a new DVD drive and boot a putatively clean DVD - if the BIOS is corrupted do I risk just re-infecting the new DVD drive? Merry Christmas to all Douglas Ray