Security Incidents mailing list archives

Re: Lame Windows Worm


From: cbrenton () SOVER NET (Chris Brenton)
Date: Mon, 28 Feb 2000 17:50:43 -0500


".sozni" wrote:

I'd say this script isn't so lame if it managed to install itself onto your
friend's startup group.

By "lame" I mean this script offers nothing unique. The fact that a
system with the "C" drive shared as read/write without a password can be
vulnerable to attack is nothing new. More of a stupid user than a cool
new code problem.

In fact, the brilliant thing about this little script
is that it demonstrates that one doesn't have to know much about networks or
even programming to create their own internet worm.

But they *did not* create it, they simply made a few changes to a script
that already exists on every Win98 machine. Hardly what I would refer to
as "brilliant".

It is funny to me that
you so harshly criticize the script and yet you say that a precondition is
that one must have their entire C drive shared without a password!

Not so much criticism as trying to put it in perspective. Its not like
every Windows system is vulnerable to this attack, just the ones that do
not sit behind a firewall and have the entire C drive shared off
read/write without a password.

And the worst thing about this whole scenario is that this "lame" little
script will probably very easily replicate itself across the millions of
shared and unpassworded C drives out there.

Given the number of required precondition, I doubt "millions" is
accurate. Let's not be an alarmist. ;)

What I would do to this script is
add in a bit of code that also looks for NT systems with blank Administrator
passwords, probably doubling the ground the worm covers.

Part of the reason I did not post the entire script. ;)

Cheers,
Chris

--
**************************************
cbrenton () sover net

* Multiprotocol Network Design & Troubleshooting
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* Mastering Network Security
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