internet shutting down

[Jesse]

Everytime I log into the internet it takes about 2 minutes
for ny system to start shutting down,
Two things: I am running Windows XP Home Edition
Message comes up Shutdown by NT Authority

Tried tom go to uodates and a error mesage comes up and
says Generic Host process for Winn 32 servicing????

Comes from svchost.exe 5.1.2600.0 unknown

What do I need to do. I cannot even stay online long
enough to download any updates if this is hat I need???

Please need help.

 

[Jupiter Jones [MVP]]

Jesse;
You most likely have a worm W32.Blaster.Worm
DISCONNECT the subject computer from any network IMMEDIATELY.

Install or enable a firewall IMMEDIATELY:
http://support.microsoft.com/?kbid=283673

VERY IMPORTANT to follow ALL steps, closing ports or installing the
patch is NOT enough.
Download the appropriate patch referenced in Ron Martells article
below.
You may need to do this at an uninfected computer and burn to CD or
save on floppy.

This is the IMPORTANT fix by Ron Martell:
http://www.bigblackglasses.com/Article.aspx?Article=342

Also see:
http://isc.sans.org/diary.html?date=2003-08-11

After this is resolved prevent similar occurrences by installing ALL
Critical Updates from Windows Update.
Keep antivirus up to date and run at least weekly.
Install or enable a firewall.