http://msmvps.com/blogs/harrywaldron/archive/2005/08/27/64396.aspxThe attached article discusses the potential for microcode based viruses that could potentially flash the BIOS and make the PC completely unusable. This type of attack occurred on a limited basis in 1998 with the CIH virus and here's hoping this typeenCommunityServer 2008.5 SP2 (Build: 40407.4157)http://msmvps.com/blogs/harrywaldron/archive/2005/08/27/64396.aspx#1640547Sat, 12 Jul 2008 11:37:46 GMTd67277c4-116b-43f1-b688-e9ef184ea916:1640547Anonymous<p>Oh, and note that the processor would have to be reinfected on startup, or a simple reboot would restore the system.</p> <div style="clear:both;"></div><img src="http://msmvps.com/aggbug.aspx?PostID=1640547" width="1" height="1">http://msmvps.com/blogs/harrywaldron/archive/2005/08/27/64396.aspx#1640546Sat, 12 Jul 2008 11:30:48 GMTd67277c4-116b-43f1-b688-e9ef184ea916:1640546Anonymous<p>If they knew exactly how the hard drive worked. If they had microcode for every hard drive or processor. If they had a way to get into kernel mode to infect the microcode. If they had sufficient privilages. If they managed to get the code executed. If the attempt was not detected. If the firmware has microcode (most does).</p> <p>I doubt it would ever happen outside a lab.</p> <div style="clear:both;"></div><img src="http://msmvps.com/aggbug.aspx?PostID=1640546" width="1" height="1">http://msmvps.com/blogs/harrywaldron/archive/2005/08/27/64396.aspx#64397Sat, 27 Aug 2005 23:37:00 GMTd67277c4-116b-43f1-b688-e9ef184ea916:64397TrackBack<div style="clear:both;"></div><img src="http://msmvps.com/aggbug.aspx?PostID=64397" width="1" height="1">