Windows

I have a stand alone xp proffessional machine that is
shutting itself down. It displays the following message
before it does.

This system is shutting down
NT Authority system
unable to connect to RPC server

Any ideas.

Regards,
Breck

[rifleman]

> wrote in message
...
> I have a stand alone xp proffessional machine that is
> shutting itself down. It displays the following message
> before it does.
>
> This system is shutting down
> NT Authority system
> unable to connect to RPC server
>
> Any ideas.
>
> Regards,
> Breck
>

Firstly, in a news group dedicated to Windows, please do not use a subject
line of "Windows". Give an indication of the problem. It's like taking your
Ford car to a Ford Dealer and saying "Ford" instead of "the brakes don't
work". get the idea?

Secondly you probably have the blaster worm.

Go here:

http://www.microsoft.com/security/incident/blast.asp

[Ken Blake]

In ,
>
typed:

> I have a stand alone xp proffessional machine that is
> shutting itself down. It displays the following message
> before it does.
>
> This system is shutting down
> NT Authority system
> unable to connect to RPC server


You have the MSBlaster worm. To remove it, do the following:

The following instructions are in three parts

1. Stop it from running

2. Remove it from your system

3. Make sure it doesn't come back



Before beginning, if you have an always-on internet connection,
it's a good idea to disconnect it.



1. Stop it from running

Press Ctrl-Alt-Delete to bring up the Task Manager, then on the
Processes tab, click msblast.exe and then "End process." Reply
"Yes" to the warning message that comes up.

This stops the worm from running, so your system will not shut
down. However, it doesn't remove it, and if that's all you do, it
will start up again the next time you boot.


***

2. Remove it from your system

a. Start the registry editor program, regedit, by going to Start
| Run, and typing REGEDIT
Navigate to HKEY_Local_Machine\Software\Microsoft\Windows\Curr ent
Version\Run by clicking the plus signs next to each of the
folders in the left hand pane. When you get to the last of them,
Run, click the word Run itself.

Find an entry called "Windows Auto Update" on the right side.
Right-click it and delete it.

b. Do a Windows search for msblast, and delete all files found.

The worm is now gone, and won't start again the next time you
boot. But if that's all you do, you can get reinfected just as
you did the first time.

***


3. Make sure it doesn't come back

a. Make sure you're running a firewall that prevents worms like
this from getting in. You can enable the built-in Windows XP
firewall, or download and install another one such as the free
version of ZoneAlarm. To enable the built-in firewall, go to
Control Panel, double-click Networking and Internet Connections,
then click Network Connections. Right-click your connection, then
click Properties, and on the Advanced tab, click the option
"Protect my computer and network..."


b. If you've disconnected your internet connection, reconnect it.
Download and install the Microsoft patch at
http://download.microsoft.com/download/9/8/b/98bcfad8-afbc-458f-aaee-b7a52a983f01/WindowsXP-KB823980-x86-ENU.exe

That will remove the vulnerability that the worm exploits.


c. Be sure you are running an anti-virus program, and that you
regularly download the latest updated virus definitions.

--
Ken Blake - Microsoft MVP Windows: Shell/User
Please reply to the newsgroup

[Bruce Chambers]

Greetings --

If you connected the PC to the Internet without having first
installed the KB824146 Hotfix, without having first installed an
antivirus application with current virus definition files, and before
enabling a firewall, 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.

Microsoft Security Bulletin MS03-39
http://support.microsoft.com/?kbid=824146

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


Bruce Chambers

--
Help us help you:
http://dts-l.org/goodpost.htm
http://www.catb.org/~esr/faqs/smart-questions.html

You can have peace. Or you can have freedom. Don't ever count on
having both at once. -- RAH


> wrote in message
...
> I have a stand alone xp proffessional machine that is
> shutting itself down. It displays the following message
> before it does.
>
> This system is shutting down
> NT Authority system
> unable to connect to RPC server
>
> Any ideas.
>
> Regards,
> Breck
>