OP Code Frequency Waveform Ransomware Detection
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Solution Overview
Problem
Current methods fail to detect ransomware in real time or at the initial stage of encryption, leading to significant data loss and damage once data is encrypted.
Innovation Solution
A ransomware detection apparatus that converts OP codes into frequency waveforms and compares them with known ransomware encryption algorithm waveforms to determine similarity, allowing for real-time detection and potential process termination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional malware detection methods are used, then detection capability is limited, but real-time detection requirement cannot be met
Solution Approach 1:
The patent replaces traditional mechanical file-based scanning with signal processing methods. OP codes are converted into frequency waveforms using Fast Fourier Transform, enabling detection through spectral analysis rather than sequential file examination. This substitution allows simultaneous analysis of multiple code characteristics, achieving both high precision and real-time performance.
Solution Approach 2:
The patent transforms the detection parameter from time-domain OP code sequences to frequency-domain waveforms. By applying Fast Fourier Transform, the system changes the representation parameters of malware codes, making encrypted ransomware patterns distinguishable through frequency characteristics even when the original code structure is obscured by encryption.
2Reliability
If data encryption by ransomware occurs, then data loss is irreversible, but early detection opportunity is missed
Solution Approach 1:
The system performs preliminary detection by continuously monitoring CPU OP codes and converting them to frequency waveforms before ransomware completes its encryption process. By establishing a baseline of normal frequency patterns and comparing against ransomware-specific patterns, the system can identify malicious activity at the initial stage, enabling preventive action before irreversible data loss occurs.
Solution Approach 2:
The patent implements continuous feedback monitoring where the detection system constantly compares current OP code frequency waveforms against known ransomware patterns. When similarity exceeds a threshold, the system provides immediate feedback to terminate the process, creating a closed-loop protection mechanism that responds dynamically to emerging threats.
3Measurement precision
If frequency waveform conversion is applied, then ransomware detection accuracy improves, but computational complexity increases
Solution Approach 1:
The patent replaces complex pattern matching algorithms with Fast Fourier Transform-based frequency analysis. This substitution simplifies the detection mechanism by transforming the problem from comparing large sequences of OP codes to comparing compact frequency spectrum representations, reducing computational complexity while maintaining or improving detection accuracy.
Solution Approach 2:
The system extracts only the essential frequency characteristics from complete OP code sequences using Fast Fourier Transform. By taking out and analyzing only the dominant frequency components that distinguish ransomware from benign software, the system reduces the data volume requiring processing while preserving the discriminatory information needed for accurate detection.
Data Source
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AI summary
A ransomware detection apparatus and an operation method thereof are provided. The ransomware detection apparatus may include a frequency converter receiving an OP code currently being executed in a CPU and converting a value of the OP code into a frequency domain to generate a first OP code frequency waveform, a memory storing a second OP code frequency waveform, which is a value obtained by converting the OP code corresponding to a ransomware encryption algorithm into a frequency domain, and a ransomware determiner comparing the first OP code frequency waveform with the second OP code frequency waveform to determine whether ransomware operates