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Article #4746

Good use of (possible bad) viruses

#4746
From: Celustkova-k336-doktorand(Richta...
Date: Tue, 22 Dec 1992 22:04
54 lines
3303 bytes
Hi boys and girls, (a day of inspiration,huh ?)

Just one of those days...Two examples of good use of (possible bad)
viruses come to my mind :

1. Viruses written to improve an A-V product

The logic is simple. It is better that I write virus which can do this
or that and have prepared solution to implement in my A-V product than
wait that such virus arises in wild and then react. That means if I
know that today exist viruses which could be stealthy, tunneling or
polymorfic why shouldn't I write virus which is all that and design my
A-V product to recognize such virus before it really appears in wild.
(Well, maybe it is not commercial, I don't know). If such virus *by
accident* escape from my lab I already have a response and there is no
ethical problem at all.

2. Viruses built in an A-V product (it's just an idea, don't blame me if it
is not applicable in reality)

Suppose that we have an A-V product which in regular intervals or
randomly send a virus in system. Virus (fast infector) infects only
programs which checksum doesn't correspond to previously calculated
values. If no such program is found virus deletes itself or removes
from memory. If changed program found virus activates scanner to check
if there is any known virus.  If known virus is found message is sent
to the user. If program is changed and no known virus is found the
message is sent to the user to make decision.  If decision is to leave
program as is, virus cuts itself from the program.  The whole process
(except messages) takes place in background. There is no need for all
A-V program (which is combination of I-checker and scanner) to be TSR,
only virus is occasionally TSR. There is slight similarity in this
idea with reaction of human immunity system. Anyone has ethical
problem with her/his own immunity system ?

Cheeeers,

Suzana                                                                   
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- ---------------------------------------------------------------------------
Address: Suzana Stojakovic-Celustka          e-mail addresses:
         Department of Computers             celustka@sun.felk.cvut.cs
         Faculty of Electrical Engineering   celustkova@cs.felk.cvut.cs
         Karlovo namesti 13
         12135 Prague 2                      phone : (+42 2) 293485   
         Czechoslovakia                      fax : (+42 2) 290159
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From: celustka@sun.felk.cvut.cs (Celustkova-k336-doktorand(Richta))
Newsgroups: comp.virus
Subject: Good use of (possible bad) viruses
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Date: 22 Dec 92 22:04:50 GMT
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