After long experience with this problem I think that the BIOS of my PC is infected with a virus. However I'm not sure if I can re-flash the BIOS. It seems to block access to the floppy drive. Is there another way ?
Thanks in advance !
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Edited by trampas, 28 February 2012 - 04:53 PM.
Edited by trampas, 28 February 2012 - 05:36 PM.
Hi Alzeimer !
Thanks for that reply. The PC doesn't report a checksum error on the BIOS so it doesn't try to restore the BIOS from CD.
However, another way to reset the BIOS is described on p4-4. You can initiate a BIOS restore by pressing <ALT> and <F2> during POST. The only problem is that it searches for the ROM file on floppy disk. If the floppy disk is absent what happens next is not described in the manual. So I tried it.
As I'd hoped, the PC then searches for the ROM file on the CD-ROM. It found this file and automatically re-flashed the BIOS. When it rebooted I received this message (just below the AMI logo) :
"CMOS Checksum Bad
Overclocking failed! Please enter Setup to re-configure your system.
Press F1 to Run SETUP
Press F2 to load default values and continue"
In case I select the wrong option I'll leave the PC that way for a while.
there was a proof of concept done on that a while back and yes it could...the real kick in the butt was there was no way to remove it but to remove and replace the bios chip from the mobo...
I've no evidence that a virus could occupy CMOS RAM.
that would be my guess to if its not in your data backups...that is the most likely choice of the 2
Part of the problem was that I was using a Setup CD that I'd built, so it was untrusted.
that will be your downfall
At the moment I have no plan for testing those files......
Edited by trampas, 03 March 2012 - 08:58 PM.
Edited by trampas, 05 March 2012 - 07:02 PM.
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