Here is a message we recieved today from one of our network gurus…..
You’ve all seen the impact of the virus/worm MSBlaster over the last couple days. The Home Office is taking care of our corporate servers and PC’s so you don’t need to worry about doing anything here. However, for those of you with home PC’s that use Windows NT, XP or 2000 and a connection to the Internet, you need to take steps to protect yourself from the virus. If you have Windows 98 or ME, this virus won’t affect you.
The following information was taken from Woody Windows Watch newsletter. There was also a good article about the virus in the 8/13 Pioneer Press. You should first check to see if your Home PC is infected and if it is, remove the virus and then go Microsoft’s site and download a patch for your PC so you don’t get reinfected.
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About Blaster
Blaster is a worm, a program that runs on one computer and then looks for other computers across the network or Internet it can infect. In this case it uses a technique called ‘buffer overrun’ to trick a computer into running a program.
You don’t have to do anything to infect your computer, even if your computer is sitting on and idle it could be infected if the right connections (ports) are incoming to your computer. Just being careful with your email and what web pages you visit isn’t going to help.
Blaster takes advantage of a known problem in Windows NT, NT Terminal Services Edition, 2000 (all flavors), XP (all flavors) and Windows Server 2003 (all flavors).
How to tell if your PC is infected
You can see if your computer is infected with Blaster by running your anti-virus software AFTER you’ve downloaded the latest virus information. Scanning your computer with out-of-date information is virtually useless.
Or you can see if the worm program is running.
1. Press Ctrl + Alt + Del
2. Choose Task Manager
3. Choose the Processes tab
4. Click on the ‘Show processes for all users’ option
5. Click on the heading ‘Images’ to sort the list alphabetically.
6. Look down the list for msblast.exe
7. If you find it, click on that entry then ‘End Process’
That will stop the worm from running, but you still have to remove it from your computer.
How to remove the virus if your PC is infected
An Anti-virus company, Symantec has instructions for removing the virus on their site: http://securityresponse.symantec.com/avcenter/venc/data/w32.blaster.worm.removal.tool.html
How to tell if you need to Patch your PC
To make sure you have the right fix, go to Settings | Control Panel | Add/Remove Software then scroll down to the long list of fixes. Look for one labeled with the number 823980 – that’s the fix you need.
If that patch (823980) is installed already you can rest easy. [on my PC it’s at the bottom of the Programs list as Windows 2000 Hot Fix – KB823980]
Where to get the Patch
To Patch your PC to prevent the virus, you need to download a patch from Microsoft:
http://www.microsoft.com/downloads/search.aspx?displaylang=en
[Choose the patch for the Windows version on your PC (XP, 2000 or NT) Be patient – hundreds of people are downloading the patches so the system is running slowly. Choose Open or Run to immediately update your PC or you can choose Save to run it later. ]