[comp.virus] Trojan Warning

oper1%drcv06.decnet@drcvax.af.mil (DRCV06::OPER1) (11/28/90)

keithm@ashtate.A-T.COM (Keith Mund) writes:

>>Speaking personally as a software author, buy software from the
>>manufacturer or a legitimate dealer. The same fears you have are felt
>>by them manyfold, and great care is taken to insure safe software.
>>Although you threw out names of companies freely, none of them has
>>distributed software with any problems. Why fear a problem that does
>>not exist. Viruses are spread by individuals copying software, not by
>>legitamate manufacturers.

	One way of insuring that the SCAN or F-PROT programs are
legitamate is for the authors to ZIP their program with the -AV
(Authenticate Verification) switch on.  That way if the programs were
modified PKUNZIP would tell you.  It would also be a way for users to
know that the ZIP file came straight from the author and hasn't been
modified in any way.

Glenn.

millerje@holst.tmc.edu (jeffrey scott miller) (11/29/90)

oper1%drcv06.decnet@drcvax.af.mil (DRCV06::OPER1) writes:
>keithm@ashtate.A-T.COM (Keith Mund) writes:
>
[about buyin direct...]
>
>	One way of insuring that the SCAN or F-PROT programs are
>legitamate is for the authors to ZIP their program with the -AV
>(Authenticate Verification) switch on.  That way if the programs were
>modified PKUNZIP would tell you.  It would also be a way for users to
>know that the ZIP file came straight from the author and hasn't been
>modified in any way.
>
>Glenn.

yes and no.  As I remember, there was a PKZIP1.2 (or was it 1.1) that
had come out with was a bogus version, and yet whoever hacked it was
able to retain the AV verification..
 _____________________________________________________________________________
|                                                                             |
|  "NUKE THE UNBORN GAY WHALES!"       |  Jeff Miller                         |
|             - graffiti               |  millerje@handel.CS.ColoState.Edu    |
|_____________________________________________________________________________|

herrickd@uunet.UU.NET (12/01/90)

oper1%drcv06.decnet@drcvax.af.mil (DRCV06::OPER1) writes:
> keithm@ashtate.A-T.COM (Keith Mund) writes:
>
>>>Speaking personally as a software author, buy software from the
>>>manufacturer or a legitimate dealer. The same fears you have are felt
>>>by them manyfold, and great care is taken to insure safe software.
>>>Although you threw out names of companies freely, none of them has
>>>distributed software with any problems. Why fear a problem that does
>>>not exist. Viruses are spread by individuals copying software, not by
>>>legitamate manufacturers.
>
> 	One way of insuring that the SCAN or F-PROT programs are
> legitamate is for the authors to ZIP their program with the -AV
> (Authenticate Verification) switch on.  That way if the programs were
> modified PKUNZIP would tell you.  It would also be a way for users to
> know that the ZIP file came straight from the author and hasn't been
> modified in any way.

Does Authenticate Verification really do something that is not
subvertible?  Forgive my skepticism.  What does it say it does?

dan herrick
herrickd@astro.pc.ab.com