345 results about "IMSI-catcher" patented technology

A method for judging and positioning a pseudo base station based on reported information of a terminal includes the steps that after receiving a message, the terminal judges whether the message is a spam message or not according to key words and a mobile phone number; if yes, a message or voice service is triggered immediately; if network connection fails, the position is judged to be a suspected covering area of the pseudo base station; the longitude and latitude of the position are recorded through a GPS chip of the terminal, when network coverage recovers, the covering position of the suspected pseudo base station is uploaded to a base station; if the terminal supports a route test function, the updating time of the position area, retention and reselection parameters and area codes are stored at the same time, so that a network monitoring server accurately discriminates and draws the covering area of the suspected pseudo base station according to a great deal of information such as the longitude and latitude of the covering position of the suspected pseudo base station, wherein the information is reported by the base station and comes from the terminal or a route test terminal, and then the position where the pseudo base station is located is judged rapidly and accurately. The method is easy and convenient to operate, high in efficiency and good in accuracy and does not increase interfaces and signaling loads of the base station or a core network, and it is necessary to modify hardware configuration of the terminal and an existing communication protocol.

The invention discloses a method and device for sending short messages to a mobile terminal from a detection fake base station. The method includes the steps that a switching incident of a base station in communication with the terminal is monitored; when the situation that the base station is switched to a second base station from a first base station is monitored, whether the terminal receives short messages from the second base station or not is detected; if yes, whether relevant information of the short messages conforms to the preset rules or not is judged; for the short messages conforming to the preset rules, whether the call forwarding state of short message center numbers corresponding to the short messages is available or not is inquired on an operation system of the terminal, and if not, the second base station is identified to be the fake base station. According to the scheme, the switching incident of the base station and short message reception in the preset time are taken as the premises, existing intelligent short message interception rules and call forwarding state inquiry are combined, and therefore the fake base station can be accurately and efficiently identified.

A system and method of detecting fake base stations. A first wireless device such as a user equipment (UE) or a base station (BS) may identify multiple parameters associated with a discovery signal transmitted by a second wireless device, the second wireless device advertising as a BS. The first wireless device may compare the multiple parameters with a set of parameters assigned to, or otherwise associated with, a cluster of neighboring BSs, and determine that the second wireless device is a fake BS when an inconsistency between the multiple parameters and the set of parameters associated with the cluster of neighboring BSs exceeds a threshold. The UE or the BS may also transmit the multiple parameters to a central controller, and the central controller may aggregate, correlate, and analyze the parameters, historical data, and other data from other sources associated with the second wireless device to determine whether the second wireless device is a fake BS.

The present invention discloses a method, an apparatus and terminal equipment for identifying a pseudo base station. The method comprises the steps of: making a position updating request to an MSC (Mobile Switch Center) corresponding to a selected base station; receiving an authentication request sent by the MSC; transmitting a response message carrying false SRES to the MSC by aiming at the authentication request; and determining that the selected base station is a pseudo base station if receiving the response message that the authentication sent by the MSC is successful.

Embodiments of the present invention disclose a pseudo base station identifying method and device that are used for identifying the pseudo base station effectively. The method includes the steps that when a terminal is accessed to a base station of a GSM network, the terminal sends trigger information for initiating an authentication flow of the terminal for a network side device to the network side device corresponding to the base station; the terminal receives authentication-related information sent by the network side device based on the trigger information, wherein the authentication-related information includes first authentication information provided by the network side device; and the terminal compares the first authentication information with second authentication information of the terminal so as to obtain a comparison result, when the comparison result indicates that the first authentication information and the second authentication information are different, the base station is determined as a pseudo base station.

The invention discloses a short message filtering method and system, a short message service center and a terminal. The method includes the steps that the short message service center generates the address information in a service center address field through a private short message center address; when the terminal receives a short message, whether the address information carried in the short message is consistent with the private short message center address stored in the private short message or not is judged, and when the address information is not consistent with the private short message center address, the received short message is filtered. According to the method, due to the fact that only certain public short message service center addresses are carried in illegal short messages sent by a pseudo base station, the pseudo base station in the method cannot acquire the private short message center addresses to be used as short message source address information, and thus the illegal short messages such as fraud short messages or junk short messages sent by the pseudo base station can be effectively filtered.

The embodiment of the invention discloses an identification method for a pseudo base station. With the method, pseudo base stations in different scenes can be identified, so that the flexibility and adaptability of pseudo base station identification are improved. The method comprises: when network access is carried out, at least one system parameter corresponding to at least one first base station is obtained, wherein the at least one system parameter is used for representing a communication parameter for determining whether network access is carried out; whether a target system parameter meeting a preset rule exists in the at least one system parameter is determined, wherein the preset rule is used for determining whether a system parameter of a pseudo base station exists in the at least one system parameter based on combination of all parameters in the system parameters; if the target system parameter exists, the first base station corresponding to the target system parameter is identified as a pseudo base station; and otherwise, whether a pseudo base station exists in the at least one first base station is identified by a position updating authentication process. In addition, the embodiment of the invention also provides a terminal.

The invention provides a malicious short message processing method and client based on a false base station. The method comprises the following steps that whether a short message received by a mobile terminal contains features of the false base station is judged; if the short message received by the mobile terminal contains the features of the false base station, whether the features of the false base station are features of a malicious false base station is judged according to a malicious false base station list stored in databases, wherein the databases comprise the local database and / or the cloud server database; when it is determined that the short message is a malicious short message according to the determination result, safety processing operations are carried out on the malicious short message. According to the malicious short message processing method and client based on the false base station, the malicious short message sent with the combination of the false base station can be judged in time, the malicious short message can be processed in time, and therefore the defect that a user cannot judge the malicious short message sent with the combination of the false base station by himself, and consequently the user is deceived and has property losses is overcome.

The invention provides a method for positioning a long term evolution (LTE) terminal in a cell range. The method comprises the following steps that: probe equipment simulates the process of searching a mobile phone cell, acquires a cell network identifier (E-CELLID), and simulates an LTE base station to induce user equipment (UE) to reside; when performing an adhesion flow, the UE can be required to report an international mobile subscriber identity / international mobile equipment identity (IMSI / IMEI) by using a message flow which is regulated by a protocol; and after the UE resides a cell which is established by a pseudo base station, the pseudo base station initiates and establishes a test loop link, and repeatedly indicates the UE to report received reference signal received power (RSRP) measurement values, wherein a higher RSRP measurement value indicates a shorter distance between the UE and the cell, so that the position of the UE can be determined. By the method, a device used in the method can be applied under the practical condition that LTE base station equipment is damaged, and the UE can be positioned in a short distance.

The invention discloses a method for detecting and suppressing a pseudo-base station. The method comprises the following steps of: 1) deploying static equipment on the selected base station, the cell global identifier CGI of each cell of the located base station being stored in the static equipment; 2) continuously monitoring the BCCHs of all the frequency points of the GSM of the located base station, reading the cell global identifier CGI of each frequency point, and comparing the cell global identifier CGI with the cell global identifier CGI of the adjacent cell by the static equipment; of a new cell global identifier CGI occurs, then judging that the pseudo-base station occurs, and recording the working frequency point corresponding to the new cell global identifier CGI; 3) simulating a plurality of user terminals and sending lots of channel allocation request pseudo-signallings to the RACH of the pseudo-base station by the static equipment; 4) after the static equipment does not monitor the information of the new cell global identifier CGI in the BCCHs, stopping sending the channel allocation request pseudo-signallings. The method disclosed by the invention is capable of timely and accurately finding and suppressing the pseudo-base station, extremely low in interference on the existing mobile network, and free from influence on normal mobile communication.

The invention discloses a pseudo base station recognition method, a device and a terminal, and belongs to the technical field of the communication. The method comprises the following steps: redirecting the terminal to a target cell capable of performing the circuit domain business when receiving a first call request in a first service cell incapable of performing the circuit domain business; sending a location update request to the located base station of the target cell when multiple stored location area identifiers (LAI) do not comprise the LAI of the target cell, wherein the multiple LAIs are obtained through the sending of the located base station of the first service cell; when receiving a update reject message sent by the located base station of the target cell and the update reject message carries an appointed reason value, determining the located base station of the target cell as the pseudo base station. By use of the recognition method disclosed by the invention, the accuracy of recognizing the pseudo base station can be improved, and then a condition that the subsequent terminal is faulty resided to the cell of the pseudo base station can be avoided, the normal call to the terminal is guaranteed, and the call completion ratio is effectively improved.

The invention discloses a pseudo base station recognition method and device and a terminal, and belongs to the technical field of communication. The method includes the steps that when a first calling request is received in a first serving cell where a circuit domain business cannot be conducted, the terminal is redirected to a target cell where the circuit domain business can be conducted; when the LAI of the target cell is not included in multiple stored LAIs, a position update request is sent to a base station where the target cell is located, and the LAIs are sent by the base station where the first serving cell is located; when the position update request does not obtain a response from the base station where the target cell is located within a first preset duration and when the time interval that the base station where the target cell is located indicates the terminal to conduct update is larger than a second preset duration or smaller than a third preset duration, the base station where the target cell is located is determined as a pseudo base station. The accuracy of recognizing the pseudo base station is improved, then the terminal is prevented from mistakenly residing in the cell which is the pseudo base station, normal calling to the terminal is ensured, and the call completion ratio is effectively increased.

The invention discloses a method and equipment for obtaining a mobile phone number based on induction of a pseudo-base station. The method comprises the following steps that: the pseudo-base station sends a signal to all mobile phones in a coverage area, so that all the mobile phones in the coverage area are communicated with the pseudo-base station; all the mobile phones which detect the signal respectively report IMSI (International Mobile Subscriber Identity) codes to the pseudo-base station; the pseudo-base station obtains corresponding mobile phone numbers by sequentially using the IMSI reported by the mobile phones; and the pseudo-base station stores the obtained mobile phone numbers in a control platform, so that the control platform controls the mobile phones in the coverage area of the pseudo-base station by using the obtained mobile phone numbers.

The invention provides a method for recognizing a pseudo base station by a mobile terminal and the mobile terminal, and relates to the technical field of communication. The method solves the problem that in the prior art, the third-generation and fourth-generation cellular mobile network pseudo base stations cannot be recognized. The method comprises the following steps that after the RRC (radio resource control) connection is built with a first base station, a message sent in a process of controlling and releasing the RRC connection of the mobile terminal by the first base station is received; according to the received message, whether the mobile terminal is redirected to a second base station or not is judged; if the mobile terminal is redirected to the second base station, the first base station and the second base station are determined into pseudo base stations, wherein the mobile communication system grade of the second base station is lower than the mobile communication system grade of the first base station. By using the technical scheme, when the pseudo base station of the mobile communication system at a higher grade uses the mobile communication system at a lower grade to communicate with the mobile terminal, the recognition on the pseudo base station is realized; the third-generation and fourth-generation cellular mobile network pseudo base station can be recognized.

The invention discloses a pseudo base station recognizing and positioning method and device. According to a main technical scheme provided by the invention, the pseudo base station recognizing and positioning method comprises the steps: determining that signals, which do not belong to a location area code (LAC) set, in a media converter (MC) signal set are illegal signals, and recording illegal signals belonging to the same pseudo base station according to time periods; according to updated positions of the pseudo base station on the longitude and the latitude in each time period, clustering the pseudo base station on the longitude and the latitude; according to the clusters of the pseudo base station on the longitude and the latitude in each time period, determining a cluster set of the pseudo base station on the longitude and the latitude; based on an algorithm, positioning the pseudo base station in each time period, superposing the pseudo base station positioned in each time period, and determining a motion trace of the pseudo base station. By adopting the technical scheme provided by the invention, problems that the pseudo base station cannot be accurately recognized and the recognized pseudo base station cannot be positioned in the prior art are solved.

The invention discloses a regional control method of mobile device communication. The method comprises the following steps: a pseudo base station is established, and communication between a mobile device in a control region and the pseudo base station is realized; and a black list, a white list and a grey list are preset according to the position of the mobile device relative to the control region, and the black list, the white list and the grey list are updated in real time. The invention also discloses a regional control system of the mobile device communication. The system comprises a shielding management module and an object management module. According to the technical scheme of regional control of mobile device communication, effective confidential control of full-standard and full-frequency range various mobile phones in the control region is realized via arrangement of 2G, 3G and 4G pseudo base stations.

The present invention discloses an interception method and equipment for spam short messages of a pseudo base station. The method comprises: obtaining LAC ID and cell ID; if a mapping relationship is not satisfied, judging that a network is a pseudo base station; otherwise, reporting an update request message of a position region to the network and starting a specific timer; if the specific timer is not overtime and an authentication request message fed back by the network is received, reading random authentication number from the authentication request message and judging whether a fixed bit is a set value or not; if so, judging that a short message is a normal short message of a legal base station; otherwise, judging that the short message is a spam short message of the pseudo base station; in addition, judging whether an update refusal message of the position region fed back by the network is received or not; if so or the specific timer is overtime, judging whether the signal strength of the network is greater than a preset threshold value or not; if so, judging that the short message is the normal short message of the legal base station; otherwise, judging that the short message is the spam short message of the pseudo base station. In the embodiment of the present invention, the spam short messages of the pseudo base station are intercepted targetedly, thus user experience is improved.

The invention provides a real-time pseudo base station determining method based on a short message. The method comprises steps as follows: a mobile terminal analyzes the received short message to acquire a short message service center number; whether the short message service center number is identical with an initialized short message service center number or not is judged, and if the short message service center number is not identical with the initialized short message service center number, the short message is determined to be sent by a pseudo base station; the short message is intercepted, and the short message is displayed as a short message sent by the pseudo base station. The invention further provides a real-time pseudo base station determining system based on the short message. The system comprises an analysis module, a determination module and an interception module. With the adoption of the method and the system, short messages of pseudo base stations can be intercepted in real time, and privacy disclosure can be effectively prevented.

A pseudo base station spam short message identification method comprises the steps as follows: when a mobile terminal receives a short message, getting check information of the short message; sending verification information and the check information of the short message to a default server; receiving the verification result of the server on the verification information and the check information; judging whether the received short message is a spam short message sent by a pseudo base station according to the verification result of the server on the verification information and the check information; and when judging that the received short message is a spam short message sent by a pseudo base station, labeling the short message. The invention further provides a pseudo base station spam short message identification system. Through the method and the system, a short message received by a mobile terminal can be identified, and a short message sent by a pseudo base station can be labeled.

The invention discloses a mobile terminal, and a method for identifying pseudo base station short messages. The mobile terminal comprises a judgment module, a request module and a determining module, wherein the judgment module is used for, when a mobile terminal which it belongs to receives short messages, judging whether the mobile terminal which it belongs to is at a mobile communication network mode, and when judging that the mobile terminal which it belongs to is at the mobile communication network mode, sending request notifications to the request module; the request module is used for initiating service requests to a preset receiver when receiving the request notifications; and the determining module is used for determining that the received short messages are pseudo base station short messages if feedback information of the receiver is not received within a preset time length. The technical scheme provided by the invention realizes simple identification of the pseudo short messages and enhances user experience so as to prevent users from economic loss.

The invention discloses a pseudo base station recognition device and method. The method includes the following steps that after a mobile terminal is registered on a base station corresponding to a GSM network frequency band, an authentication request is sent to a preset server; whether authentication verification information fed back according to the authentication request is received or not within a preset time period is judged; if the authentication verification information fed back according to the authentication request is not received within the preset time period, the frequency band corresponding to the base station registered currently is displayed as a pseudo base station. A terminal user can carry out operation and processing according to displayed pseudo base station information, and use safety when the mobile terminal is connected into the GSM network for communication is improved.

Aiming at defects of the conventional mobile terminal detection, the invention provides a mobile terminal detection method and system. The method comprises the following five steps: configuring a system, obtaining the information of a base station, constructing a pseudo base station, monitoring uplink signaling of a mobile terminal and recognizing the uplink signaling of the mobile terminal; the mobile terminal detection system comprises a radio frequency unit, an intermediate frequency unit, a base band processing unit and a control unit which are sequentially connected in series. The mobile terminal detection method and system have the technical effects as follows: a hardware platform shared by both a GSM module and a CDMA module is used, the processing control of the radio frequency, the intermediate frequency and the base band is completed through the control unit, and the GSM and CDMA parameter selection is completed through the control unit, so that the system structure is simplified, and the great convenience in carrying and layout is achieved. According to the invention, a three-passageway mode is adopted, the pseudo base station is adopted to send a signal to induce a mobile phone to send a message, thus, the capturing and detection of identity information of a target can be completed, and a high speed and high accuracy are achieved.

The present invention provides a method for long-term maintaining the target connection state of a pseudo base station for 4G detection and control, which is characterized in that: a positioning device is used as a pseudo base station, and after a designated UE is allowed to reside on the positioning device, the positioning device is used to locate the designated UE, including continuously repeating at the designated Before the UE connection times out, modify the tracking area code TAC of the positioning device to trigger a tracking area update request, thereby maintaining the connection process and supporting unlimited time to obtain the precise location of the target during the process of locating the specified UE. The object of the present invention is to solve the problem of the designated UE being disconnected in the above process, solve the time limit caused by the number of TAUs in the positioning process, and improve the positioning success rate.

A pseudo base station protection method is applied to a terminal. The method comprises the steps that if before authentication succeeds after 3C / 4C community registration request information or region update request information or region update request information is sent to the network side, redirection messages sent by the network side are received, and whether the redirection messages contain information redirected to a 2G network or not is determined; if the redirection messages contain the information redirected to the 2G network, no response is caused to the redirection messages; if the redirection messages do not contain the information redirected to the 2G network, redirection is conducted according to the redirection messages. The invention further provides a pseudo base station protection device. The safety of the terminal user network can be guaranteed.

The invention discloses a method and a device for identifying pseudo base stations. The method comprises the following steps: receiving a short message sent by a base station; parsing a receiver identity in the message, wherein the receiver identity is added to the short message through a network-side server; comparing the receiver identity with a stored receiver identity to generate a comparison result; and determining whether the base station is a pseudo base station according to the comparison result The problem that terminal equipment cannot identify pseudo base stations effectively is solved, accurate identification of pseudo base stations is realized, and illegal behaviors conducted by making use of pseudo base stations are prevented.

The invention discloses a pseudo base station identification and pseudo base station information sharing method, device and system so as to improve pseudo base station identification success rates and prevent other terminals from accessing a pseudo base station. The method comprises the following steps: a terminal receives a short message sent by a base station corresponding to a cell where the terminal resides at present, whether the short message is a garbage message is determined, a location area renewal for the base station is initiated by the terminal, that the base station is a pseudo base station is determined by the terminal if that the location area renewal fails is determined by the terminal, and cell reselection is initiated.

A system and method of detecting fake base stations. A first wireless device such as a user equipment (UE) or a base station (BS) may identify multiple parameters associated with a discovery signal transmitted by a second wireless device, the second wireless device advertising as a BS. The first wireless device may compare the multiple parameters with a set of parameters assigned to, or otherwise associated with, a cluster of neighboring BSs, and determine that the second wireless device is a fake BS when an inconsistency between the multiple parameters and the set of parameters associated with the cluster of neighboring BSs exceeds a threshold. The UE or the BS may also transmit the multiple parameters to a central controller, and the central controller may aggregate, correlate, and analyze the parameters, historical data, and other data from other sources associated with the second wireless device to determine whether the second wireless device is a fake BS.

The invention provides a network residing method, a network residing system and a terminal. The network residing method comprises the following steps: when that a trigger condition of a location area update is satisfied is detected, acquiring a working frequency point of a base station in an area where the terminal is located; sending a location area update request to a target base station corresponding to the working frequency point; acquiring an authentication random parameter fed back by the target base station; generating a first authentication parameter according to identification information of a subscriber identification card of the terminal, the authentication random parameter and a specified authentication algorithm, and generating a second authentication parameter which is different from the first authentication parameter; transmitting the second authentication parameter to the target base station; and judging whether the target base station is a pseudo base station or a core network base station according to a feedback instruction of the target base station specific to the second authentication parameter. Through the technical scheme of the invention, the probability that a user terminal resides in the pseudo base station is lowered; the interference of the pseudo base station on communication services of the user terminal is lowered; and the use security of the user terminal is improved.

The invention discloses a method for preventing the access to a pseudo base station, and the method is used for a terminal. The method comprises the steps: receiving a system message transmitted by a cell on a broadcast control channel; obtaining a specific message content which comprises the cell reselection bias, a periodic position updating timer, a universal grouping wireless service identification and a position region identification of the same frequency point neighbor cells according to the system message; and determining that the cell is the pseudo base station if two of the cell reselection bias, the periodic position updating timer, the universal grouping wireless service identification and the position region identification of the same frequency point neighbor cells meet preset conditions. The preset conditions comprise the conditions that the value of the cell reselection bias is a first preset value; the value of the periodic position updating timer is a second preset value; the universal grouping wireless service identification indicates that the universal grouping wireless service is not supported; and the position region identification of the same frequency point neighbor cells is not consistent with the position region identification of the cell. The invention also proposes the terminal with a system for preventing the access to the pseudo base station. The method and terminal can effectively prevent the access to the pseudo base station.