How to remove Shutdown Virus:

first remove the virus from memory and system.

open command prompt, if system shutdown dialog

box appears, then type

shutdown -a

Then, in the command prompt, goto the windows folder

c:\>cd C:\windows

c:\windows>attrib -h -s -r system.bat

c:\windows>edit system.bat

Now, search and remove any line containing

shutdown -t -3000

or similar line containaing shutdown command.

similarly, remove the line from config.nt file

c:\>cd C:\windows\system32

c:\windows>attrib -h -s -r config.nt

c:\windows>edit config.nt

search and remove the line

save the file(s) and restart the computer.