The invention provides a defending and killing
virus mp3 device and a method for defending and killing
virus. The device comprises an mp3 main control
chip, a CD-ROM zone, an encrypting zone and a common memory area, the method comprises: inserting the device into a computer, then, indentifying through a computer
system, decompressing an antivirus program and a
virus library compressed packet to an appointed folder on a computer harddisk, operating the antivirus program, detecting whether a new virus
library is available or not through the antivirus program, updating if the new virus
library is available, controlling the virus library to automatically write back to a program in the encrypting zone to operate after updating, writing a newly updated virus library file back to the encrypting zone, operating the antivirus program, checking and killing
computer virus, monitoring the computer harddisk and the defending and killing virus mp3 device on real time, extracting the defending and killing virus mp3 device after finishing checking and killing the virus, and deleting the antivirus program from the computer harddisk automatically. The invention can effectively prevent and kill the virus and monitor the harddisk and U disks, and can use the defending and killing virus mp3 on the computer which is provided with antivirus
software already without collisions.