Welcome to the dark corner of BIOS reverse engineering, code injection and various modification techniques only deemed by those immensely curious about BIOS
Monday, April 26, 2010
I've made some fixes to the AMI BIOS Reverse Engineering article. The fixes mostly deal with the interpretation of the "headers" of the component in the decompressed AMI System BIOS module a.k.a AMI 1B module (near the end of section 4.4 until the end of the article). I have add some new information regarding the structure of AMI system BIOS as well. Anyway, I built 2 utilities to work with the AMI system BIOS module. The first one, to split the AMI system BIOS module into its components (or to "extract" one component from it) and the second one to insert a modified AMI system BIOS module's component into the AMI system BIOS module. You can download their source code here (both utilities source code are lumped together into one compressed file). The explanation about the utilities can be found here. I don't have enough time yet to make an article to explain them. Well, it should be clear from the source code even though they were quick hacks.