Full Disclosure mailing list archives

RE: Just when you thought Macafee stuff was safe!


From: "Tim Saunders" <Tim.Saunders () aquilauk co uk>
Date: Wed, 24 Sep 2003 09:39:11 +0100

It's the on-access scanner that has the problem when you try to do
anything with the downloaded file. Even if you are only copying it to
another PC.

I would accept it cannot scan the contents of such a large compressed
file if it didn't crash and leave the on-access scanner disabled.

Tim

-----Original Message-----
From: gregh [mailto:chows () ozemail com au] 
Sent: 23 September 2003 22:52
To: Tim Saunders; full-disclosure () lists netsys com
Subject: Re: [Full-disclosure] Just when you thought Macafee 
stuff was safe!



----- Original Message -----
From: "Tim Saunders" <Tim.Saunders () aquilauk co uk>
To: "gregh" <chows () ozemail com au>; 
<full-disclosure () lists netsys com>
Sent: Wednesday, September 24, 2003 1:14 AM
Subject: RE: [Full-disclosure] Just when you thought 
Macafee stuff was
safe!


Or if your users have McAfee Virus scan wait for them to download a
large compressed file, I find zips of oracle CDs from 
partner.oracle.com
do nicely. Now watch McAfee crash as it tries to scan the 
contents of
the zip and times out (I believe) thus leaving the machine nice and
vulnerable since it doesn't auto restart. Any 300MB+ Zip, .tar.gz,
.cpio.gz etc seems to work. Smaller files may also work depending on
your machine.

Tim,

Gotta say I don't have that problem with Macafee stuff. I 
have 98 and XP
machines that have anywhere from 500meg files to, in 2 cases, 2gig
compressed files sitting on them and what you say has never 
happened even
once in a scheduled scan. I never allow any virus scanner to 
scan incoming
compressed files. I only allow them to scan when I save to disk from
attachment and that hasn't ever been a problem, either.

Greg.




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