Patent ID: 8200193
Filing Date: 2012-06-12
Classification: H04L,H04W

Abstract:
1. A method for detecting the presence of a virus in a mobile terminal within a radiocommunication network comprising the following steps: creating a profile in a home location register (HLR) in a first device connected to the radiocommunication network when a mobile terminal subscribes to the service of an operator of the radiocommunication network, said profile including an authentication counter; receiving a first authentication request from a visiting location register (VLR) in a second device connected to the radiocommunication network when the mobile terminal accesses the radiocommunication network from the VLR's localization area, said authentication request comprising a request to the HLR for security data corresponding to the mobile terminal; storing a current clock data in the profile corresponding to the mobile terminal accessing the radiocommunication network in response to the first authentication request; increasing the authentication counter in the profile of the mobile terminal in response to the first authentication request and any subsequent authentication requests when the security data are transmitted from the HLR of the mobile terminal to the VLR generating the authentication request; evaluating the authentication counter to determine whether the authentication counter has exceeded a predefined upper limit value in order to detect the presence of a virus in the mobile terminal; and sending an alert message when the authentication counter exceeds the predefined upper limit.