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Technical support article

W32.Blaster.Worm and W32.Welchia.Worm
Removal Tools

IMPORTANT NOTE: You must be logged in as an Administrator to do this. If you are not logged in as an Administration, the System Restore tab will not be displayed. If you do not know how to log in as Administrator, contact your system administrator (if on a network), the computer manufacturer, or installer.

1. For MsBlaster infections, download the FixBlast.exe file from: http://securityresponse.symantec.com/avcenter/FixBlast.exe .

For Welchia infections, download the FixWelch.exe file from: http://securityresponse.symantec.com/avcenter/FixWelch.exe

As of April of 2004, a new variant had arrived. Download the removal
tool as well as instructions for the new version of the Blaster virus from: http://securityresponse.symantec.com/avcenter/venc/data/w32.blaster.t.worm.html

2. Save the file to a convenient location, such as the Windows Desktop

3. Close all the running programs before running the tool.

4. If you are running Windows XP, then disable System Restore.

CAUTION: If you are running Windows XP, we strongly recommend that you do not skip this step. The removal procedure may be unsuccessful if Windows XP System Restore is not disabled, because Windows prevents outside programs from modifying System Restore.

To disable Windows XP System Restore:

NOTE: These instructions assume that you are using the default Windows XP Start Menu and have not changed to the Classic Start menu. To re-enable the default menu, right-click Start, click Properties, click Start menu (not Classic) and then click OK.


I. Click Start.

II. Right-click the My Computer icon, and then click Properties.

III. Click the "System Restore" tab.

IV. Check "Turn off system restore" or "Turn off system restore on all drives" as shown in this illustration:

V. Click Apply. As noted in the message, this will delete all existing restore points. Click Yes to do this.

VI. Click OK.

5. Return to the Windows Desktop and double-click the FixBlast.exe file to start the removal tool .

6. Click Start to begin the process, and then allow the tool to run.

NOTE: If, when running the tool, you see a message that the tool was not able to remove one or more files, run the tool in Safe mode. Shut down the computer, turn off the power, and wait 30 seconds. Restart the computer in Safe mode and run the tool again. All the Windows 32-bit operating systems, except Windows NT, can be restarted in Safe mode.

7. Restart the computer when prompted

8. Re-enable System Restore:

To enable Windows XP System Restore:

I. Click Start.
II. Right-click My Computer, and then click Properties.
III. Click the "System Restore" tab.
IV. Uncheck "Turn off system restore" or "Turn off system restore on all drives."
V. Click Apply, and then click OK.


10. Run Windows Update by going to Tools and Windows Update or click the link below for the operating system of your computer:

Windows XP:
http://microsoft.com/downloads/details.aspx?FamilyId=2354406C-C5B6-44AC-9532-3DE40F69C074&displaylang=en

Windows NT 4.0 Server:
http://microsoft.com/downloads/details.aspx?FamilyId=2CC66F4E-217E-4FA7-BDBF-DF77A0B9303F&displaylang=en

Windows 2000:
http://microsoft.com/downloads/details.aspx?FamilyId=C8B8A846-F541-4C15-8C9F-220354449117&displaylang=en

11. Run the update portion of your Anti-virus software and scan your machine for viruses


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  Today is Monday, April 21, the 111th day of 2014. There are 254 days left in the year.

1864 -- 150 years ago: The female sex seems to have gone crazy on the subject of dry goods. When high prices keep them from increasing their wardrobes, they turn to stealing. Yard goods, hats, shoes and other items are being picked up and carried home.
1889 -- 125 years ago: Members of Everts Commandery No. 18, Knights Templar, under Commander H.C. Cleaveland, marched from the Masonic Temple to Trinity Episcopal Church for their annual Easter services.
1914 -- 100 years ago: Nate Hultgren pitched the Augustana College baseball team to a 10-3 victory over Carthage, striking out 11 men and allowing only four hits.
1939 -- 75 years ago: Marvel Leonhardi, a Rock Island High School senior, was the winner of an essay contest on advertising sponsored by The Argus and Advertising Age, a national advertising publication.
1964 -- 50 years ago: The Augustana College band drew a crowd of 1,200 people for its annual home concert in Centennial Hall. The size of the crowd was indicative of the fact the band is rapidly approaching the stature of the Augustana Choir.
1989 -- 25 years ago: A benefit to raise money for extracurricular activities in the Rock Island Milan School District will be April 27 at the Quad City Downs harness race track. People buying $17.50 tickets to the second annual "Night at the Quad City Downs" will be entitled to an evening of harness racing and dinner.






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