Vehicle Attack Analysis via System and Network Log Correlation
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Solution Overview
Problem
Existing technologies struggle to analyze cyberattacks against vehicles with high accuracy, particularly in connected vehicles, due to the complexity of integrating communication and system logs for effective threat detection.
Innovation Solution
An attack analysis device that associates system logs from an electronic control system with communication logs to determine correspondence information, allowing for precise identification of violated components and potential attack types by synchronizing logs based on time frames and communication patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If system logs and communication logs are integrated for attack analysis, then measurement precision of attack detection is improved, but device complexity increases
Solution Approach 1:
The patent segments the log analysis process into distinct modules: a log acquisition unit that collects system logs and communication logs separately, a log association unit that correlates them through timing and communication patterns, and an attack analysis unit that evaluates the combined data. This segmentation allows each module to handle specific tasks independently, improving detection accuracy while managing complexity through modular architecture.
Solution Approach 2:
The patent introduces an intermediary log association mechanism that bridges system logs and communication logs. This intermediary layer correlates logs based on timing information and communication patterns before presenting integrated data to the attack analysis unit, thereby enabling precise attack detection without requiring direct complex integration of all log sources.
2Reliability
If multiple log types are correlated for threat detection, then reliability of attack identification is improved, but difficulty of detecting and measuring increases
Solution Approach 1:
The patent transforms multiple log types into a unified analysis format by changing their parameters to a common temporal and contextual framework. System logs and communication logs are both converted to include timing parameters and communication pattern descriptors, enabling reliable correlation without the difficulty of handling disparate data formats and measurement scales.
3Measurement precision
If detailed log association is performed to identify violated components, then measurement precision of target identification is improved, but loss of time increases
Solution Approach 1:
The patent performs preliminary actions by pre-processing logs to extract and store key correlation parameters such as timing information and communication patterns before actual attack analysis. This preliminary organization of data enables precise target element identification during attack detection without requiring time-consuming real-time processing of raw log data.
Data Source
AI summary
An attack analysis device configured to analyze an attack against an electronic control system constructed in a vehicle, the attack being against the electronic control system via a network is provided. The attack analysis device includes a determination section configured to determine whether correspondence information matches a preset type of the attack, the correspondence information being obtained by associating a system log that is a log of the electronic control system with a communication log that is a log of communication between the electronic control system and an outside of the vehicle, and determine whether a target element representing at least one of the electronic control system or a component of the electronic control system has been violated.