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How to completely backup the old bios for future investigation ? (ALSO BIOS SECURITY TIP/IDEA !!)
Hello,
The old bios chip seems to be working. However the bios chip might be corrupted or infected with a bios virus ?! So I want to investigate the bios chip. What is the best way to completely backup the BIOS and compare it with other versions ? So far I can think of this method, but is it thorough enough ? 1. Use bootdisk and afudos tool to backup the bios to a rom image. 2. Download/find corresponding bios version from the internet or harddisk (could ofcourse still be modified but unlikely... best to redownload it to make absolutely sure though maybe the internet bios version is already changed ! haha, so compare to disk is also good ! =D) 3. BINARY COMPARE ROM IMAGES/FILES. Then see if there are any differences... This is a simple and short test. However I have seen people write about "protected" areas of the bios chip... Do these "protected" area's exist... are they backed up as well ? Can a virus penetrate these "protected" area's ? What about the remaining unused memory ? Can virus hide there ? HMMM ?!? Ofcourse a little bit of the bios would have to be changed for the virus to jump to unused memory... so it would probably still be detected. And finally: What tools are available on the internet to investigate bios rom images/file more thoroughly... maybe even at the command/programming level ?! Having a look at it could be interesting anyway... and the binary compare seems a really smart way to check/make sure it wasn't altered. However I have heard somebody tell a story about a virus which shortly ****ed up your computer... and then after a while it would completely VANISH.... it would simply restore everything back to normal. So that all evidence would be gone ?! By the time you come at the store with "dead motherboard" it would suddenly be alive again =D Funny story isn't it. Well for me that's ofcourse not the case... my old motherboard is as dead as it can be... confirmed in other post/thread/testings. YES. AND TO ALL VIRUS WRITES I SAY: 1. PLEASE DON'T WRITE VIRUSSES THAT'S BAD AND NASTY AND NOT NICE ! 2. PLEASE DON'T USE THIS TECHNIQUE TO VANISH. ALWAYS LEAVE A TRACE SO YOU WILL BE CAUGHT THAT'S GOOD FOR YOU AND ME AND THE WORLD =D 3. AND ADVICE TO HARDWARE MANUFACTURERS: BUILD IN A MODIFICATION DETECTION METHOD WHICH CAN'T BE RESET. FOR EXAMPLE: BUILD IN A COUNTER WHICH KEEPS TRACK OF THE NUMBER OF MODIFICATIONS to the BIOS CHIP. THIS COUNTER SHOULD BE IMPOSSIBLE TO RESET. WHEN THE USER FLASHES THE NEW COUNTER VALUE IS STORED TO DISK OR SOMETHING. Then later... if the counter value does not match the counter value on disk... or on a piece of paper for all I care... then the USER KNOWS the BIOS CHIP WAS MODIFIED WITHOUT HIS CONSENT ! SOMETHING ELSE CHANGED IT ! YES THE COUNTER IDEA IS GOOD IDEA TO CATCH BIOS VIRUSSES AND OTHER UNALLOWED BIOS CHANGES ! HA-HA. It's a nice start to improve BIOS SECURITY Bye, Bye, Skybuck. |
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How to completely backup the old bios for future investigation ? (ALSO BIOS SECURITY TIP/IDEA !!)
Well,
I am not touching anything inside my PC anymore. My PC working better than ever ! Even the FreeCell sound bug is gone ?! Last time when I build my PC as soon as I messed around with the bios that bug was created or something. SO I AM STAYING AWAY FROM EVERYTHING RELATING TO THE BIOS CHIP LOL. NO MORE INVESTIGATIONS FROM MY PART until I get problems or something. To bad for the investigation... but it's not worth it. Everything working A.O.K and I am just fine with that =D Besides virus infection in bios a bit far fetched possible but unlikely... though now I might not ever know. But I don't wanna know as long as my PC works OK Sorrrrryy but my investigation stop right here =D LOL. IF IT AINT BROKE DONT MESS WITH IT I SAY ! =D WIEEEE. Bye, Skybuck. |
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How to completely backup the old bios for future investigation ? (ALSO BIOS SECURITY TIP/IDEA !!)
On Tue, 12 Jun 2007 03:18:57 -0700, Skybuck The Destroyer
wrote: Hello, The old bios chip seems to be working. However the bios chip might be corrupted or infected with a bios virus ?! So I want to investigate the bios chip. What is the best way to completely backup the BIOS and compare it with other versions ? RTF_A8N32-SLI_M !! John Lewis |
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