Abstract: From the perspective of information security of college campus network, a network security situational awareness system is
built to achieve the purpose of "timely awareness and timely warning" for campus network vulnerabilities and the attacks from botnets,
trojans, worms. The network security situational awareness system has high application value for improving the security management
and control capabilities of campus network information.

Key words: situational awareness, virus, forewarning, networks and information security