Article View: comp.sys.ibm.pc
Article #14424Re: Protecting against copying from hard disks
From: Tom Reingold
Date: Sun, 09 Nov 1986 22:06
Date: Sun, 09 Nov 1986 22:06
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1857 bytes
In article <579@bucsb.bu.edu.UUCP>, madd@bucsb.bu.edu.UUCP (Jim Frost) writes:
<
<How about:
<Go through COMMAND.COM and find the COPY command. This is really easy to do
<with Norton Utilities. Make it anything you want, the more bizarre the better.
<This should disable the COPY command within DOS. Then just write your own,
<naming it anything you want. This way, you can restrict access better. It's
<hardly foolproof, but it oughta work to keep at least some people from
<copying things. This is simple and quick, and should help until some real
<guru comes along with a better way.
<
< - Jim Frost * The Madd Hacker -
That's not so hard to thwart unless there are no floppy drives on the
machine. Someone can walk in with a DOS disk, boot from it, and copy any
file off the hard disk. I really don't know how you can effectively do
what you want to do, except the following:
Rewrite the file BIOS functions in DOS and rearrange the FAT so that it is
non-standard. This is very risky and I would not think that it would be
safe, but I guess it's possible.
--
Tom Reingold -- Rockefeller Univ, 1230 York Av, NY 10021; (212) 570-7709
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!rutgers!seismo!cmcl2!rna!rocky2!reintom From: reintom@rocky2.UUCP (Tom Reingold) Newsgroups: comp.sys.ibm.pc Subject: Re: Protecting against copying from hard disks Message-ID: <278@rocky2.UUCP> Date: Sun, 9-Nov-86 17:06:54 EST Article-I.D.: rocky2.278 Posted: Sun Nov 9 17:06:54 1986 Date-Received: Mon, 10-Nov-86 05:03:48 EST References: <836@ur-tut.UUCP> <579@bucsb.bu.edu.UUCP> Organization: Rockefeller Univ.,N.Y.C 10021 Lines: 28