Recently, a hacker organization leaked a number of intrusion tools exploiting Windows remote vulnerabilities. Computers of many teachers and students in our school also suffered the virus attack. After learned the matter, the leadership of School of Computer & Computing Science attached great importance to the prevention of the virus, and immediately reminded all teachers to first turn off the Internet before starting work on Monday and then boot to backup the data. The experimental center was also informed to protect against the virus and ensure the normal operation of experimental classes.