Cryptic Intrusion Detection for Stealth Vehicle Network Alerts
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Solution Overview
Problem
In-vehicle communications networks are vulnerable to cyberattacks, compromising vehicle safety and performance, and existing intrusion detection systems (IDS) are susceptible to tactics employed by cyber attackers to thwart their operation.
Innovation Solution
An intrusion detection system (IDPS) with a stealth module (S-Watchman) that employs cryptic behavior to conceal and camouflage its responses to hacker intrusions, using network-based and host-based detection, and transmits hacking reports through cryptic procedures to an external hub, such as a cloud-based system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional intrusion detection systems are deployed to protect in-vehicle networks, then detection capability is improved, but vulnerability to cyberattacks worsens due to attacker tactics that thwart IDPS operation
Solution Approach 1:
The IDPS dynamically changes its behavioral profile between normal and cryptic modes, analogous to changing colors for camouflage. When potential attacks are detected, the system transitions to cryptic behavior that mimics normal traffic patterns, making it difficult for attackers to distinguish between legitimate operations and intrusion detection activities, thereby maintaining reliability while preserving detection capability
Solution Approach 2:
The system implements dynamic adaptability by continuously adjusting its operational mode based on detected threat levels. The IDPS can switch between normal operation and cryptic behavior modes, and dynamically modify message transmission patterns, timing, and content to evade detection while maintaining effective intrusion monitoring, thus resolving the contradiction between detection precision and operational reliability
2Loss of time
If the IDPS transmits hacking reports immediately upon detection, then response time is improved, but security worsens by exposing indicators that attackers can use to compromise the system
Solution Approach 1:
The system performs preliminary cryptic behavior activation before actual intrusion reports are transmitted. By establishing camouflage patterns and cryptic message protocols in advance, the IDPS prepares the communication channel to hide intrusion indicators before they are exposed, reducing the time loss while preventing attacker reconnaissance from obtaining useful information
Solution Approach 2:
The system introduces cryptic message formats as an intermediary layer between the intrusion detection mechanism and the external reporting channel. These intermediary messages encode intrusion reports in ways that appear as normal traffic patterns, allowing timely report transmission while blocking attacker attempts to extract meaningful information about system vulnerabilities
3Reliability
If the IDPS employs cryptic behavior to conceal responses, then security is improved by preventing unauthorized access, but detection difficulty worsens for legitimate monitoring
Solution Approach 1:
The IDPS segments its operational behavior into distinct functional components: detection functions that continue to operate effectively, communication functions that employ cryptic patterns, and reporting functions that use encoded message formats. This segmentation allows legitimate monitoring systems to detect intrusion events through appropriate channels while the cryptic behavior maintains security by preventing unauthorized access through reconnaissance
Data Source
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AI summary
A method of providing an alert of an occurrence of a hacker intrusion, the method comprising: detecting a hacker intrusion; and transmitting a concealed or camouflaged report of the hacker intrusion to provide an alert of the occurrence of the intrusion.