Abstract: With the rapid development and wide application of RFID technology, RFID system' s security threats and malware of them also develop quickly. In order to prevent from them, we need to know their theories better. This paper particularly analyzed existing security problems and malware of RFID system,and gave some defense measures. At last,according to the characters of RFID system, the paper proposed a malware's immune model based on RFID system.

Key words: RFID technology, Malware, Immune model , Security, Attack