[comp.virus] LZEXE- drawbacks

tfarrell@lynx.northeastern.edu (12/11/90)

I have read several responses to my input on LZEXE, critical of what I
had to say. I have three responses.

1. I recognize the fact that if you LZEXE'd a file that had already
been infected it could hide the virus. This is another good argument
for regular scanning. I have LZEXE'd almost all of my software, and
feel safe about it, because I have had most of it for quite a while
and the software I use has proven itself safe because of years of
regular use and frequent virus scans with the most up to date software
I can get my hands on. If you can feel as safe about your software
before using LZEXE as I did, I personally believe that LZEXE can add
some more security.

2. You're probably right about stealth viruses. I hadn't thought of
that. Good idea. However, that doesn't rule out the possibility that
it could help find or pervent non-stealth viruses.

3. LZEXE is not compatible with MS Windows programs (this is
explicitly stated in the documentation) and is not usually compatible
with programs that use overlays. However, I myself have only hit one
program (excluding windows) that I could not successfully put through
LZEXE, which was Telix, the shareware communications program.

I apologize to those people who have requested LZEXE from me and have
not yet gotten it. I just got a copy of UUENCODE and will be mailing
LZEXE to everyone who requested it within the next day or two.

Thank you all on the virus journal for your constructive comments.
			Tom Farrell