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Re: [inbox] Re: Fwd: Comment on: USB devices spreading viruses


From: "James Matthews" <nytrokiss () gmail com>
Date: Mon, 24 Nov 2008 08:31:32 +0200

What i was referring to was having only programs on a corporate white list
run. White listing services are provided by http://www.bit9.com/ and they
have now partnered with Kaspersky to be able ID most programs and anything
else run it in a sandbox.

However your approach to blocking USB devices is better. But this is an
overall approach.

James

On Mon, Nov 24, 2008 at 7:17 AM, Bipin Gautam <bipin.gautam () gmail com>wrote:

On 11/24/08, James Matthews <nytrokiss () gmail com> wrote:
bit9 and kaspersky offer this new service. Companies should make use of
it.


what service, James!

Could you please explain more...

I find it ridicules to know that this problem has been there since the
earliest version of windows but still without a generic solution! Is
this unwillingness for the approach to a proper solution is what has
fueled the "antivirus business" for so long?

If you look in the *nix side you will see this technique is
tested/proven. Signature based or behavior based approach detection
will continue to fail.

To address this never-ending problem of virus infection from removable
media, i have implemented no-execution-from-removable to dorzons of
computers in the past years, even the dumbest of users understand what
is being done and feel safe about they wont likely have virus
infection from the removable media ever, even if the media has a
virus. They know workaround on how to temporarily disable the
restriction if they are willing to run something trustworthy as i have
made the users clear there is no solution to the problem of virus
infection from removable media and and you have to learn these few
things ...like you have learned to use antivirus software to stay
safe. Users get it, really!

Antivirus companies should take similar approach (as described
previously) to address it but adding USABILITY.

This problem is there to stay for years to come. What better could be
the proper solution to this problem?

thanks,
-bipin



On Sun, Nov 23, 2008 at 10:05 PM, Bipin Gautam
<bipin.gautam () gmail com>wrote:

On 11/23/08, Mike C <mike.cartall () gmail com> wrote:

Of course, blindly thwacking people / dragging them to HR by the hair
when they're really just trying to do their jobs is
counter-productive. The calls also show us where we, security, are
falling down. Perhaps it's poor awareness training (if the user
didn't
know that they shouldn't run unapproved software, or why we have that
rule, or how to get a new app approved); or could be that the
official
route is being seen as too slow or bureaucratic, in which case it
needs fixing. And so on.


All I hope is we can fix the issue. Hopefully in the near future.



Yeah!
Here is my prospective to a possible solution that wouldn't compromise
usability.

But, first lets all agree on "banning execution of any binary from
removable media" is the only straightforward solution this decades old
problem of virus infection/propagation from removable media.

See, if a web-page tries to install an activeX / browser plugin, your
browser (non intrusively) waits for user interaction with a security
warning message on "if you really intend to install the plugin (Which
may be harmful!)" or .......may choose to ignore the dialog and
continue browsing.

Here, it is assumed "user understands" the security impact of
executing untrusted programs from internet and let the execution
decision left to the end user with manual interaction. If the plugin
installation behavior is not intended user can simply ignore the
manual interaction request for execution and instead continue.

In similar way, anti virus company or Microsoft should create similar
for "My Computer Zone" where the first execution of a binary "from
removable media" is denied by default and prompt for user interaction
to execute, white list&execute or terminate/ban the request for
execution from removable media like the way internet explorer (non
intrusively) handles installation of activeX like in IE. Binary
execution from removable media should be treated that way ( untrusted
! )

Pen drive / SD have unique serial numbers which can be used to
identify and permanently whitelist or blacklist the media from
execution.

Windows already has a feature for prompting if user tries to execute
binary from intranet/shared folder or execution of binary marked as
downloaded from "Internet Zone"

Why not have similar for binary execution from removable media as well!?

What better could be the solution to stopping virus to propagate from
removable medias with (default) FAT file system. (lacking ACL's)

For corporate environment let there be feature to sync these white
listed/blacklisted hashes of executable or removable media UID from
anti virus server/domain controller to anti virus clients/related
service running in user end.

Will this work :)?

-thanks,
bipin

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