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echo: os2prog
to: Kenneth johansson
from: Victor Bogado
date: 1995-01-11 19:05:26
subject: Re: Virus Strategies

-- respodendo a mensagem de Kenneth johansson para Peter Hansen (Virus
Strategies) --

 > What everyone with more than two brain cells to rub together has 

 > been saying is that a virus, as in the kind that 

 > surreptitiously loads into memory by riding on top of another 

 > program, and _sticks around after the program exits_, cannot 

 > exist in the OS/2 environment.  

 

 > OS/2 is not proof against all forms of attack, but it is 

 > protected against the most common and easily spread kinds.  

 > RK's senseless babbling aside.



 Kj> What are you talking about??? The system is wide open! Don't let the

 Kj> memmory protection fool you. 

 Kj> 1. Can a program read another exe file ?

 Kj> 2. Can a program write over another exe file ?

 Kj> 3. Can a program alter the config.sys and install a new driver ?



 Kj> Some ways are blocked that a virus under DOS can use but its still not

 Kj> near safe. 

 Kj> I have noticed that there are more than one definition on whats a

 Kj> virus and whats not. I define virus as a unwanted code pice that can

 Kj> reproduce itself. For me a virus dont have to take over the system or

 Kj> hide in the OS. A trojan is only the program thats deliver the virus.

 Kj> Say I hade a virus and I wanted to spread it I would at this time make

 Kj> a DOOM/2 to put it in. Thats makes the DOOM/2 a trojan 

 Kj> If UNIX can be infected by a virus so can OS/2.



	I don't think nobody told that  OS/2  is free from viruses, what people

are saying is that OS/2 is safer than DOS.  I belive that OS/2 is  realy  a

lot  safer than DOS in the matter of virus, and also it has a lot of useful

tools to write protection  programs  (like locking individual files against

writing). 



	In the way I think OS/2 is safer than DOS in the same way that UNIX  is

the  safer  than OS/2 and DOS.  But no system, I repeat NO SYSTEM, is safe.

The hard it is to  write  a  virus  for  a determined system the more virus

writers will look for a way of doing it.  Thinking that OS/2, or  unix,  is

totaly free of virus is a way of making a possible virus to spread out more

easyly.



                ÚÄÄÄ¿

              m  o o  m

       ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

       ³[]s Victor Bogado da Silva Lins  ³

       ³Bogado{at}lyric.labma.ufrj.br       ³

       ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ





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