Re: Messenger service pop-ups

From: Bruce Chambers (bchambers_at_nospamcableone.net)
Date: 02/13/04 

Date: Fri, 13 Feb 2004 12:19:12 -0700

Greetings --

    This type of spam has become quite common over the past several
months, and unintentionally serves as a valid security "alert." It
demonstrates that you haven't been taking sufficient precautions while
connected to the Internet. Your data probably hasn't been compromised
by these specific advertisements, but if you're open to this exploit,
you may well be open to other threats, such as the Blaster Worm that
recently swept cross the Internet. Install and use a decent,
properly configured firewall. (Merely disabling the messenger
service, as some people recommend, only hides the symptom, and does
little or nothing to truly secure your machine.) And ignoring or just
"putting up with" the security gap represented by these messages is
particularly foolish.

Messenger Service of Windows
http://support.microsoft.com/default.aspx?scid=KB;en-us;168893

Messenger Service Window That Contains an Internet Advertisement
Appears
http://support.microsoft.com/?id=330904

Stopping Advertisements with Messenger Service Titles
http://www.microsoft.com/windowsxp/pro/using/howto/communicate/stopspam.asp

Blocking Ads, Parasites, and Hijackers with a Hosts File
http://www.mvps.org/winhelp2002/hosts.htm

  Whichever firewall you decide upon, be sure to ensure
UDP ports 135, 137, and 138 and TCP ports 135, 139, and 445 are _all_
blocked. You may also disable Inbound NetBIOS (NetBIOS over TCP/IP).
You'll have to follow the instructions from firewall's manufacturer
for the specific steps.

    You can test your firewall at:

Symantec Security Check
http://security.symantec.com/ssc/vr_main.asp?langid=ie&venid=sym&plfid=23&pkj=GPVHGBYNCJEIMXQKCDT

    Oh, and be especially wary of people who advise you to do nothing
more than disable the messenger service. Disabling the messenger
service, by itself, is a "head in the sand" approach to computer
security. The real problem is _not_ the messenger service pop-ups;
they're actually providing a useful, if annoying, service by acting as
a security alert. The true problem is the unsecured computer, and
you've been advised to merely turn off the warnings. How is this
helpful?

Bruce Chambers 

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"Debs" <anonymous@discussions.microsoft.com> wrote in message 
news:f74901c3f25d$e6ca6510$a301280a@phx.gbl...
> Can anyone help me
>
> In the last few days I have been receiving increasing
> amount of spam pop-ups in the form of grey boxes with an
> OK button at the bottom. At the top of the page is
> Messenger Service.
>
> These are not sites I have visited - can anyone help me
>
> Regards
>
>