Re: NT Authorizes Shutdown

From: Bruce Chambers (bchambers_at_nospamcableone.net)
Date: 06/24/04 

Date: Thu, 24 Jun 2004 06:59:37 -0600

Greetings --

    As you haven't provided any specific details or error messages,
the following is the result of having to guess what your problem might
be. There are at least two possibilities:

1) If you connected the PC to the Internet without having first
enabled a firewall, without having first installed an antivirus
application with current virus definition files, and before installing
the KB828471 Hotfix, you're very likely to get infected from any of
the thousands of PCs on the Internet that are constantly broadcasting
the Blaster and/or Welchia worms. It only takes a few seconds of
exposure.

    To stay on-line long enough to get the necessary updates, patches,
and removal tools, click Start > Run, and enter "shutdown -a" when the
next RPC countdown begins. This will abort the shut down. Also, make
sure you've enabled a firewall before starting, to preclude any more
intrusions while getting the updates/patches/tools.

MS04-012 Cumulative Update for Microsoft RPC-DCOM
http://support.microsoft.com/default.aspx?scid=kb;en-us;828741

What You Should Know About the Blaster Worm
http://www.microsoft.com/security/incident/blast.asp

W32.Blaster.Worm a.k.a. W32/Lovesan.Worm
http://www.symantec.com/avcenter/venc/data/w32.blaster.worm.html

W32.Blaster.Worm Removal Tool
http://www.symantec.com/avcenter/venc/data/w32.blaster.worm.removal.tool.html

W32.Welchia.Worm a.k.a. W32/Nachi.Worm
http://securityresponse.symantec.com/avcenter/venc/data/w32.welchia.worm.html

W32.Welchia.Worm Removal Tool
http://www.symantec.com/avcenter/venc/data/w32.welchia.worm.removal.tool.html

McAfee AVERT Stinger
http://us.mcafee.com/virusInfo/default.asp?id=stinger

2) You've apparently contracted the latest worm, W32.Sasser.Worm,
specifically designed to attack people who do not update their
computers promptly and who do not practice "safe hex." In other
words, like Blaster, this worm was developed and distributed _after_ a
patch for the vulnerability was announced and made publicly available.
Further, and also like Blaster, this worm could not affect any
computer whose user had taken the basic precaution of using a properly
configured firewall.

    To stay on-line long enough to get the necessary updates, patches,
and removal tools, click Start > Run, and enter "shutdown -a" when the
next Shutdown countdown begins. This will abort the shut down. Also,
make sure you've enabled a firewall before starting, to preclude any
more intrusions while getting the updates/patches/tools.

What You should Know about the Sasser Worm and its Variants
http://www.microsoft.com/security/incident/sasser.asp

Microsoft Security Bulletin MS04-011
http://www.microsoft.com/technet/security/bulletin/MS04-011.mspx

W32.Sasser.Worm
http://www.symantec.com/avcenter/venc/data/w32.sasser.worm.html

A tool is available to remove the Sasser worm variants
http://support.microsoft.com/default.aspx?scid=kb;EN-US;841720

W32.Sasser.Worm Removal Tool
http://securityresponse.symantec.com/avcenter/venc/data/w32.sasser.removal.tool.html

McAfee AVert Stinger Virus Removal Tool
http://vil.nai.com/vil/stinger/

Bruce Chambers 

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"PAtrick" <patrickmbarnett@comcast.net> wrote in message
news:20d7a01c459e4$5a5e94e0$a101280a@phx.gbl...
> If anyone has any ideas, it would be most appreciated.
> A client of mine keeps getting this error message while
> surfing the internet " NT Authorizes System Shutdown "
> then a countdown timer starts and the machine shuts down.
> It's boggling my mind. He uses Yahoo's dial-up service
> with a USB modem running Windows XP Home edition. I have
> checked the system for adware and spyware; updated and
> scanned with his anti-virus software; and even used
> HiJackThis and havent found anything suspicious. Any help
> would be great.
>
> Thanks,
> Patrick
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