Whitelisting System with Automated Program Verification
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Solution Overview
Problem
Current whitelisting systems in computer security often result in false positives, where trusted programs are blocked from execution until manually added to the whitelist, leading to administrative inefficiencies and potential security vulnerabilities due to the need for constant updates and manual approvals.
Innovation Solution
A system that uses automated rules and user behavior analysis to suggest trusted programs for execution based on directory paths, certifications, and historical data, allowing administrators to approve classes of programs rather than individual ones, reducing the need for manual updates and improving security by allowing safe programs to run without explicit whitelisting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If strict whitelisting is implemented to block unauthorized programs, then security is improved, but false positives increase causing trusted programs to be blocked
Solution Approach 1:
The system segments the whitelist into multiple categories (e.g., critical applications, standard software, approved directories) with different levels of restriction. This allows trusted programs to be grouped and managed collectively, reducing false positives while maintaining security for critical applications.
Solution Approach 2:
The system performs preliminary analysis of programs before blocking them, checking against multiple criteria (digital signatures, publisher verification, behavioral patterns) to determine trustworthiness in advance. This prevents legitimate programs from being incorrectly blocked.
2Reliability
If administrators manually update whitelists to include new programs, then security control is maintained, but administrative workload increases
Solution Approach 1:
The system enables automatic whitelist updates through multiple mechanisms: automated program verification using digital signatures and publisher certificates, self-registration of trusted applications, and automatic approval based on organizational policies. This reduces administrative time while maintaining security control.
Solution Approach 2:
The system implements feedback loops where program execution results, user approvals, and security outcomes are continuously monitored and fed back to refine whitelist decisions. This allows the system to learn from patterns and automatically adjust whitelisting rules, reducing manual administrative intervention.
3Reliability
If comprehensive program verification is performed before execution, then security is improved, but system performance decreases
Solution Approach 1:
Security verification is performed in advance during program installation or first execution, with results cached for future use. This preliminary security check prevents repeated verification overhead during normal execution, maintaining both security and performance.
Solution Approach 2:
The system applies different verification intensities to different programs based on their trust level. Critical applications undergo rigorous verification, while already-trusted programs experience minimal or no re-verification. This localized approach maintains security for important applications while preserving system performance for routine operations.
Data Source
AI summary
A computer security system with enhanced whitelisting includes administrative interfaces that accept user inputs to create and modify entries in a whitelist that define which programs are allowed to execute on one or more target computer systems. Upon an attempt to run a program, the entries in the whitelist are used to determine if the program is allowed to run. If an entry in the whitelist indicates that the program is allowed to run, the program is run. Otherwise, at a later time, an administrative interface is used to either block future execution of the program or to create an entry in the whitelist that allows execution of a class of programs or only that the program in the future until revoked. The whitelist is for a single target computer or many computers.