Abstract: Disclosed are a method of determining properties of a service executed in a user terminal based on packet analysis, and a user terminal and a computer program that perform the same. The method of determining properties of a service executed in a user terminal based on packet analysis according to various embodiments of the present invention is performed by the user terminal, which includes identifying an analysis target packet among packets generated as a service is executed through the user terminal, and determining the properties of the service by analyzing the identified analysis target packet.

Abstract: A method for operation of a user terminal, according to an embodiment of the present invention, comprises the steps of: registering a first address as DNS server information in a virtual private network (VPN) module; driving an application interworking with a target service server; acquiring domain name server (DNS) lookup request result information corresponding to the target service server by using the DNS server information; generating access domain information from the domain name server (DNS) lookup request result information; and outputting, on the basis of the access domain information, related useful information, such as user payment means-specific benefit notification corresponding to the application.