In a rare case where malware appears to have survived a reformatting ...well, I'd first look at all the ways that a machine can get immediately reinfected as you rebuild it from scratch (lack of firewall, infected external hard drives and the like). Notenboom has been playing with computers since he was required to take a programming class in 1976. They became totally useless since without video you cannot even flash the BIOS.Sure, flashing a BIOS is dangerous also, but in my mind not as risky as a newbie trying to pop out and replace a microchip physically.Unfortunately, I'm very restricted in finances after all this, and can no longer afford to hire someone to do it for me... The library doesn't provide a very long time limit, and I need to get a clean computer and router working at home so I can finish my degree, my portfolio, and find a job.Only after eliminating those might I think about checking or resetting the BIOS. An 18 year career as a programmer at Microsoft soon followed. in 2003 as a place for answers to common computer and technical questions. I believe that, as I said, there are proof of concept instances of software which, essentially, initiates a malicious flash to insert itself into the BIOS. Myself and other technicians I know could find any explanation for this.And again, since that is BIOS-specific it's not something I worry about at all. Most of the people who lost their video reported having a virus warning right before they lost their video.To Fred (April 28, 2010 post), the virus warning they saw right before they lost video, was Not likely their anti-virus program.There is a virus out there right now that is a popup of a virus warning and to the user it will appear as if it is their anti-virus program telling the of it and to "click here" to get rid of it.
I've seen it a few times on my job as the office computer administrator. I don't even get the buffer overflow beep when holding an f-key down unless I cleared the CMOS (2006 computer) first.
If it's a case of re-infection even after reformatting the hard drive, it could be that there is a 'stub' of the virus in the boot sector of the hard drive. I have recently run into a rash of PC's that have lost their video abilities. This is not proof of a BIOS virus but we are very suspectful that this is the case. Shirley its job is just to load the OS from the HDD or CD and pass contol to it. Anything else the BIOS might have done in the past would be better supported by kernel modules in the loaded OS.
Whilst there are several ways to eliminate this stub, one of the easiest I've used is to convert it to FAT 32, then back to NTFS. With that in mind, wouldn't the best thing be to write protect the BIOS flash and forget about it?
Further, I believe that when faced with a virus infection you're probably wasting your time worrying about the BIOS. People will argue which is more of a contributing factor, but there's no denying that the fact that Windows runs on a gazillion machines is a huge factor.
) The reason that Microsoft Windows has more viruses that any other operating system isn't so much about its vulnerabilities as it is about it's success.
Any suggestions on where to learn more about BIOS viruses or whatever you think might be happening in my case?