Cyber Threat Information Processing Using Natural Language Models
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Solution Overview
Problem
Existing cybersecurity technologies struggle to detect and respond to new or variant malware, as well as advanced persistent threat (APT) attacks, due to limitations in pattern recognition and analysis, leading to delayed detection and confusion in identifying attackers and attack techniques.
Innovation Solution
A cyber threat information processing apparatus and method that utilizes natural language processing and machine learning to analyze and identify malware, attack techniques, and attackers, even for variant malware, by processing cyber threat information related to input files and providing standardized and normalized descriptions of cyber threats.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional pattern recognition and monitoring technologies are used to detect malware, then detection speed and accuracy are improved for known threats, but the ability to detect new or variant malware deteriorates
Solution Approach 1:
The system performs preliminary actions by pre-defining attack techniques and building knowledge bases before threats occur. It analyzes malware samples in advance to extract features and patterns, creating a foundation for detecting both known and unknown threats. This preliminary preparation enables the system to recognize new malware variants based on their attack technique characteristics rather than requiring pre-existing specific patterns.
Solution Approach 2:
The system changes the detection parameters from static pattern matching to dynamic attack technique analysis. Instead of relying on fixed malware signatures, it transforms malware characteristics into standardized attack technique parameters, allowing flexible detection across different malware variants and types while maintaining consistent identification criteria.
2Productivity
If AI analysis is used to detect and analyze malware, then analysis capability is improved, but the ability to address new or variant malware deteriorates due to reliance on learned patterns
Solution Approach 1:
The system performs preliminary action by pre-establishing attack technique knowledge bases and analysis frameworks before encountering new malware. It prepares standardized classification criteria and attack technique definitions in advance, enabling rapid identification of new variants without requiring retraining of AI models. This preliminary knowledge structure allows the system to handle novel threats effectively.
Solution Approach 2:
The system introduces attack technique analysis as an intermediary layer between raw malware data and final detection conclusions. This intermediary framework translates diverse malware characteristics into standardized attack technique categories, serving as a mediator that enables consistent analysis and response to new variants while maintaining the productivity benefits of AI processing.
3Speed
If decentralized malware detection methods are used, then local response speed is improved, but standardization of attack technique descriptions deteriorates
Solution Approach 1:
The system implements universality by establishing a common attack technique knowledge base that serves multiple functions: local rapid detection, standardized description generation, and centralized coordination. This universal framework operates at both local and central levels, enabling decentralized quick response while maintaining consistent standardized descriptions through the shared knowledge structure.
Solution Approach 2:
The system employs feedback mechanisms where local detection results are fed back into the centralized knowledge base, and standardized attack technique descriptions are continuously refined based on actual detection data. This feedback loop ensures that local response speed is maintained while progressively improving standardization through real-world validation and correction of attack technique classifications.
4Measurement precision
If focus is placed on detecting malware itself, then malware identification is improved, but the ability to identify attackers and attack techniques deteriorates
Solution Approach 1:
The system applies segmentation by dividing malware analysis into distinct components: malware identification, attack technique characterization, and attacker attribution. This segmentation allows each component to be analyzed and identified independently with specialized methods, improving overall precision while enabling comprehensive identification of all three elements rather than focusing on malware alone.
Solution Approach 2:
The system adds another dimension to malware analysis by transitioning from single-dimensional malware signature matching to multi-dimensional attack technique analysis. This dimensional expansion incorporates attacker behavior patterns, attack methodology, and contextual information alongside traditional malware characteristics, enabling simultaneous identification of malware, attackers, and techniques through enriched analysis layers.
Data Source
AI summary
Provided is a cyber threat information processing method including receiving a CTI analysis request for a document script included in a file from a client; analyzing the document script to obtain analysis information of the CTI for the document script; generating a CTI query related to the document script based on the analysis information of the CTI and delivering the CTI query to a natural language model; and providing natural language description information according to the CTI query from the analysis information of the CTI and the natural language model to the client as visualization information.


