Affected users can abort Sasser’s shutdown sequence by clicking “Start” then using the Run command to enter “shutdown -a,” which stops the system shutdown so users can continue to use their computers.
Another option is to run the shutdown.exe file, which is not available by default on Windows 2000 but can be installed from its resource kit. This file is, however, available in Windows XP.
A final option is to set the infected computer’s time and/or date to earlier. The shutdown time will move as far into the future as the clock was set back.