Method and system for automatically and safely closing background service of set top box

The invention discloses a method and system for automatically and safely closing background service of a set top box, and the method comprises the steps: configuring a remote connection tool to be monitored at a client, selecting a network adapter to be monitored, and inputting a target IP address and a port number; the method comprises the following steps: searching a process name through a psutil technology, obtaining a corresponding program process PID, searching a corresponding port number, starting to monitor data of a network adapter and a data link layer through a PCAP technology, and filtering out data matched with a target IP address and the port number; analyzing the filtered data, judging whether a new data packet is generated or not, and if no new data packet is generated within a preset time, sending an encrypted closing instruction to the server; and the server closes the background service according to the encrypted closing instruction. The method is used for solving the problem that the securi