Re: A89: Writing to Flash ROM
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Re: A89: Writing to Flash ROM
Benoit Sherrer (author of pct98) has already made a virus
but he has removed it from his site, because there was a bug :)
----- Original Message -----
From: "Julian Stoev" <stoev@freeshell.org>
To: <assembly-89@lists.ticalc.org>
Sent: Wednesday, June 07, 2000 10:09 AM
Subject: Re: A89: Writing to Flash ROM
>
> I wonder when are we going to see the first virus for TI89?
> ;)
>
> BTW, I think keeping such sources "secret" will not help at all.
> There is no security with obscurity. I think the best thing to avoid
> problems is to make information widely available to *any* user.
>
> I remember how virus things started in the old PC world - undocumented
> BIOS and interrupt functions and relatively few real tools to explore
> the situation.
>
> --JS
>
> On Wed, Jun 07, 2000 at 08:22:44AM +0200, Zeljko Juric wrote:
> |
> |Hi!
> |
> |> Thanks to all who responded. I did finally write to
> |> the flash rom by following what Zeljko Juric
> |> suggested. I did not get my specific program to work
> |> because the flash protection cannot be disabled in the
> |> area that I was writing to. (The block that the first
> |> part of the AMS code is in also contains the
> |> certificate. I figure that TI doesn't want people to
> |> erase that block with the block erase command.) Olle
> |> Hedman was correct when he said that corrupting this
> |> block could ruin the calc. But gladly we don't have
> |> to worry about that :-)
> |
> |I strongly recommend for anybody who succeeded to write
> |anything into the Flash ROM to keep source of such
> |routines exclusively for internal purposes, and not to
> |release them to the public. Giving such sources to the
> |public is equal like giving an atomic bomb to an idiot.
> |These sources may be misused disasterously!!!
> |
> |Zeljko Juric
>
>
References: