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Date: Tue May 16 23:50:35 2006 From: jay.nevins at earthlink.net (Jay Nevins) Subject: Breaking LoJack for Laptops I can only speak for Dell since thats what I use will let you re-flash the BIOS and even with a non-lojack one. However, once Lojack is activated in the BIOS it will reinstall itself with the new image. I by no means am a computer guru (the last language I used was ada) but I have tried to disable lojack every possible way I can think and it wont go away. If you can find something contrary please let me know. thanks, Jay ----- Original Message ----- From: "Michael Holstein" <michael.holstein@...ohio.edu> To: "Jay Nevins" <jay.nevins@...thlink.net> Cc: <full-disclosure@...ts.grok.org.uk> Sent: Tuesday, May 16, 2006 9:34 AM Subject: Re: [Full-disclosure] Breaking LoJack for Laptops > Why can't you just download a new BIOS image from the manufacturer (one > without LoJack .. since they make seperate images with and without that > code, for "consumers" .. and re-flash it. > > Not having a "lojack" laptop at my disposal, I can't test directly, but > having hacked the BIOS in many other cases to enable things like RAID on a > non-raid motherboard, I suspect that the LoJack code is in one of the > "vendor" areas on the bios, and is easily removed and the image > re-checksummed. > > Thoughts? > > Michael Holstein CISSP GCIA > Cleveland State University > > Jay Nevins wrote: >> FYI- >> I know this may be a little after-the-fact but I just came upon your >> article posted on 12-24-05 about how to disable LoJack for Laptops. I >> currently use this product and have tested it in depth for a while. The >> Notebook I use has Computrace built in to the BIOS. I have tried to >> disable rpcnet, ctmweb, rpcnetp, and other files associated with Lojack >> as well as blocking these files with my firewall and even blocking >> Computrace's IP. Needless to say my notebook still manages to call out. >> If you are still interested in this program you may want to look at >> machines with Computrace enabled BIOS first. >> -Jay >> >> >> ------------------------------------------------------------------------ >> >> _______________________________________________ >> Full-Disclosure - We believe in it. >> Charter: http://lists.grok.org.uk/full-disclosure-charter.html >> Hosted and sponsored by Secunia - http://secunia.com/
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