Abstract: In an anomaly detection method that determines whether each frame in observation data constituted by a collection of frames sent and received over a communication network system is anomalous, a difference between a data distribution of a feature amount extracted from the frame in the observation data and a data distribution for a collection of frames sent and received over the communication network system, obtained at a different timing from the observation data, is calculated. A frame having a feature amount for which the difference is predetermined value or higher is determined to be an anomalous frame. An anomaly contribution level of feature amounts extracted from the frame determined to be an anomalous frame is calculated, and an anomalous payload part, which is at least one part of the payload corresponding to the feature amount for which the anomaly contribution level is at least the predetermined value, is output.

Abstract: A cleaning method according to the present disclosure includes a first cleaning operation and a second cleaning operation, wherein the first cleaning operation includes: supplying a first processing gas to the interior of the chamber; and cleaning a region including the placement region of the stage by generating a first plasma from the first processing gas in a space defined by the placement region and the electrode, and the second cleaning operation includes: holding a dummy substrate at a predetermined position spaced by a predetermined distance from the placement region to face the placement region; supplying a second processing gas to the interior of the chamber; and cleaning a region including a periphery of the placement region of the stage by generating a second plasma from the second processing gas in a space defined by the dummy substrate held at the predetermined position and the electrode.

Abstract: An information processing apparatus connected to one or more vehicles and a threat information server storing pieces of threat information. The information processing apparatus includes: a processor; and a memory including at least one set of instructions that, when executed by the processor, causes the processor to perform: obtaining a detection result of an attack on one of the vehicles; (a) determining whether the attack is included in any one of the pieces of threat information; (b) when the attack is included therein, determining whether the resolution state to the attack included in the one of the pieces of threat information indicates that the attack has not been resolved or has been resolved; (c) deciding a processing priority level of the attack, based on a determination result in (a) and a determination result in (b); and (d) outputting the processing priority level decided.

Abstract: A gateway that notifies a fraud detection server located outside a vehicle of information about an in-vehicle network system including an in-vehicle network includes: a priority determiner that determines a priority using at least one of: a state of the vehicle including the in-vehicle network system; an identifier of a message communicated on the in-vehicle network; and a result of fraud detection performed on the message; a frame transmitter-receiver that transmits and receives the message communicated on the in-vehicle network; a frame interpreter that extracts information about the in-vehicle network based on the message received by the frame transmitter-receiver; and a frame uploader that notifies the fraud detection server of notification information including the priority and the information about the in-vehicle network.

Abstract: A module for a vehicle includes: a first communication module that transmits and receives first data to and from a first in-vehicle module; a second communication module that transmits and receives second data to and from a second in-vehicle module; and a control module that controls relay of third data among the first communication module and the second communication module. In a case where reception data received by the control module from the first or second communication module is unauthorized, the control module stops relaying the third data in accordance with a traveling state of the vehicle satisfying a predetermined condition, The traveling state includes: the vehicle being stopped; a vehicle speed being at or below a predetermined speed; brakes being applied; a hazard indicator being on; a driver being in a state capable of driving; and/or self-driving functions being in an off state.

Abstract: A vehicle monitoring apparatus includes: a first communicator that receives specifying information for specifying a target vehicle from a server; and an acquirer that acquires driving information from the target vehicle, the driving information being information regarding driving of the target vehicle specified by the specifying information received by the first communicator. The first communicator transmits the driving information acquired by the acquirer to the server. For example, the acquirer may acquire the driving information obtained from the target vehicle through communication.

Abstract: An anomaly detection device is located between a network and a first ECU in the plurality of ECUs, and includes: a communication circuit; a processor; and a memory including a set of instructions that, when executed, causes the processor to perform operations including: receiving a message from the first ECU and transmitting the message to the network, and receiving a message from the network and transmitting the message to the first ECU, using the communication circuit; holding, in the memory, a received ID list; when an ID of the message received by the communication circuit from the network is not included in the received ID list, adding the ID to the received ID list; and when an ID of the message received by the communication circuit from the first ECU is included in the received ID list, causing the communication circuit not to transmit the message to the network.

Abstract: A gateway that notifies a fraud detection server located outside a vehicle of information about an in-vehicle network system including an in-vehicle network includes: a priority determiner that determines a priority using at least one of: a state of the vehicle including the in-vehicle network system; an identifier of a message communicated on the in-vehicle network; and a result of fraud detection performed on the message; a frame transmitter-receiver that transmits and receives the message communicated on the in-vehicle network; a frame interpreter that extracts information about the in-vehicle network based on the message received by the frame transmitter-receiver; and a frame uploader that notifies the fraud detection server of notification information including the priority and the information about the in-vehicle network.

Abstract: An in-vehicle relay device for a vehicle is provided. The in-vehicle relay device includes a first communication circuit that transmits and receives first data to and from a first in-vehicle equipment in the vehicle. A second communication circuit transmits and receives second data to and from a second in-vehicle equipment in the vehicle. A control circuit controls relay of third data among the first communication circuit and the second communication circuit. In a case where reception data received by the control circuit from the first communication circuit or the second communication circuit is unauthorized, the control circuit stops relaying the third data in accordance with a traveling state of the vehicle.

Abstract: An information processing device comprising: a processor; and a memory including at least one set of instructions that, when executed by the processor, causes the processor to perform operations. The operations include: obtaining incident information about an incident of a cyberattack that occurred in a vehicle; obtaining second vehicle information about a state of a second vehicle via communication with the second vehicle; determining a risk level of a vehicle function of the second vehicle based on a degree of matching between the incident information and the second vehicle information; generating a function restriction command for restricting a vehicle function of a first vehicle corresponding to the vehicle function of the second vehicle, when the risk level is higher than a first criterion, the vehicle function of the first vehicle being one among one or more vehicle functions of the first vehicle; and outputting the function restriction command.

Abstract: An information processing device includes: a processor; and a memory including at least one set of instructions that, when executed by the processor, causes the processor to perform operations. The operations include: obtaining incident information about an incident of a cyberattack that occurred in a vehicle; obtaining first vehicle information about a state of a first vehicle; storing, in the memory, the incident information and the first vehicle information; determining a risk level of a vehicle function of the first vehicle, based on a degree of matching between the incident information and the first vehicle information stored in the memory, the vehicle function of the first vehicle being one among one or more vehicle functions of the first vehicle; generating a function restriction command for restricting the vehicle function, when the risk level is higher than a first criterion; and outputting the function restriction command.

Abstract: An information processing method is provided to reduce an amount of data to be monitored in an onboard system of a vehicle. In the method, detection results that indicate whether an abnormality is included in communication data on an onboard network are obtained, and a first log transmission instruction is generated to cause periodic transmission of a first log from the onboard system to a server device. The first log is a log of some of the communication data. A second log transmission instruction is generated to cause transmission of a second log from the onboard system to the server device in a case of the detection results indicating the abnormality is included in the communication data. The second log is a log of more of the communication data than the first log.

Abstract: An attack analysis device includes: an obtainer that obtains in-vehicle network information indicating a configuration of an in-vehicle network including a plurality of external communication interfaces and a plurality of control Electronic Control Units (ECUs), and anomaly detection information indicating a result of detecting an anomaly in at least one node in the in-vehicle network; an attack path estimator that, based on the in-vehicle network information and the anomaly detection information, estimates an attack path in an attack on the in-vehicle network, the attack path including an entry point indicating an external communication interface that is a point of intrusion into the in-vehicle network in the attack and an attack target indicating a control ECU that is a target of the attack; and an outputter that outputs the attack path.

Abstract: An anomaly detection method for detecting an anomaly in an in-vehicle network of an in-vehicle network system including a plurality of electronic control units that transmit and receive messages via the network includes: generating image data of a reception interval between a plurality of messages included in a message sequence in a predetermined period out of a message sequence received from the in-vehicle network, or image data of a transition of a sensor value of the plurality of messages; classifying the image data using a trained CNN according to whether an attack message has been inserted in the predetermined period; and when the attack message has been inserted in the predetermined period, outputting a detection result indicating that an insertion attack which is an insertion of the attack message has been made in the predetermined period.

Abstract: A server as an information processing device includes: a communicator that communicates with mobile a body; a monitoring data storage that stores past monitoring data of the mobile body received by the communicator; and an alive monitor that determines whether a current state of the mobile body is anomalous, based on the past monitoring data stored in the monitoring data storage.

Abstract: A vehicle attack continuity determination method includes: obtaining first vehicle attack event information pertaining to a first vehicle attack event which has occurred in an in-vehicle network, second vehicle attack event information pertaining to a second vehicle attack event which has occurred in the in-vehicle network before the first vehicle attack event, and in-vehicle network information indicating a configuration of the in-vehicle network; determining whether there is continuity between the first vehicle attack event and the second vehicle attack event based on the first vehicle attack event information, the second vehicle attack event information, and the in-vehicle network information; and outputting a result of the determining.

Abstract: An information processing device capable of reducing an amount of data to be monitored in an onboard system is provided. The information processing device obtains a first log including, per unit time, some communication data flowing through the onboard system. The information processing device determines whether an abnormality is included in the communication data, using the first log. In a case where the abnormality is included in the communication data, the information processing device outputs first detection results to the onboard system. The first detection results cause transmission of a second log from the onboard system. The second log includes, per the unit time, more of the communication data than the first log.

Abstract: An electronic control unit that is capable of more accurately determining an event that has occurred in a network installed in a mobile body such as a vehicle, the electronic control unit including: a transmitter-receiver that receives first messages transmitted from a first ECU included in an in-vehicle network; and an attack determiner that, when a first message among the first messages received by the transmitter-receiver is determined to have an anomaly, determines whether a cause of the anomaly is an attack on the in-vehicle network.

Abstract: An anomaly detection device is located between a network and a first ECU in the plurality of ECUs, and includes: a communication circuit; a processor; and a memory including a set of instructions that, when executed, causes the processor to perform operations including: receiving a message from the first ECU and transmitting the message to the network, and receiving a message from the network and transmitting the message to the first ECU, using the communication circuit; holding, in the memory, a received ID list; when an ID of the message received by the communication circuit from the network is not included in the received ID list, adding the ID to the received ID list; and when an ID of the message received by the communication circuit from the first ECU is included in the received ID list, causing the communication circuit not to transmit the message to the network.

Abstract: An attack detection method includes determining a sampling rule including a sampling interval and a sampling time on the basis of at least one of a statistic indicating a variation in sensor values included in the sensor data or event information on the mobility entity, which indicates the timing of a change in sensor values; generating sampling data including two or more sensor values selected from the sensor data on the basis of the sampling interval and the sampling time, first order information, and second order information; and calculating a first anomaly score indicating the degree of anomalies in the evaluation target data and a second anomaly score indicating the degree of anomalies in the evaluation target data, determining on the basis of the calculated first and second anomaly scores whether the evaluation target data has resulted from the attack, and outputting a determination result.