Re: Breaking LoJack for Laptops

["Jay Nevins" <jay.nevins () earthlink net>]

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 () csuohio edu>
To: "Jay Nevins" <jay.nevins () earthlink net>
Cc: <full-disclosure () lists 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
> >
> >
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