DNS Server DGA Domain Detection Integration
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Solution Overview
Problem
Current systems face challenges in efficiently identifying and mitigating Domain Generation Algorithm (DGA) domain names used by malware, as they require dedicated analysis systems that are costly and complex to implement, and often overwhelm network infrastructure, leading to increased bandwidth consumption and management complexity.
Innovation Solution
Integrating DGA domain identification and remediation capabilities directly into the DNS server, allowing it to determine whether a domain name is benign or potentially malicious, and respond accordingly, thereby preventing communication with Command and Control servers without the need for additional hardware or infrastructure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If dedicated analysis systems are used to identify DGA domain names, then detection capability is improved, but system complexity and cost increase
Solution Approach 1:
The patent combines DGA domain name detection functionality with the existing DNS server infrastructure. The DNS server performs DGA analysis directly when resolving domain names, merging the detection function into the name resolution process itself rather than using a separate dedicated analysis system. This integration eliminates the need for additional hardware or complex standalone detection systems.
Solution Approach 2:
The DNS server is enhanced to perform multiple functions: traditional domain name resolution plus DGA domain name detection and mitigation. By making the DNS server multi-functional, the system avoids requiring separate dedicated analysis systems, thereby reducing overall system complexity while maintaining detection capability.
2Measurement precision
If dedicated analysis systems are deployed, then detection capability improves, but infrastructure cost increases
Solution Approach 1:
The detection functionality is merged into the existing DNS server, eliminating the need to purchase, deploy, and maintain separate dedicated analysis systems. This integration significantly reduces infrastructure cost while preserving the ability to detect and mitigate DGA domain names effectively.
3Measurement precision
If network infrastructure is enhanced for DGA detection, then detection capability improves, but bandwidth consumption increases
Solution Approach 1:
The DNS server performs DGA analysis in advance during the domain name resolution process, before any actual data transmission occurs. By identifying potentially malicious domain names at the DNS query stage, the system can block communications proactively without requiring continuous monitoring or analysis of data traffic, thereby minimizing bandwidth consumption.
Solution Approach 2:
The system rapidly resolves and analyzes domain names during the DNS lookup process, making quick determinations about potential malware communications. This fast-track approach allows the system to identify and block malicious domains immediately without performing lengthy analysis that would consume additional bandwidth or time.
4Measurement precision
If dedicated analysis systems are implemented, then detection capability improves, but management complexity increases
Solution Approach 1:
By integrating DGA detection into the DNS server, the system eliminates the need to manage separate analysis infrastructure. The existing DNS server administration processes continue to apply, simplifying operational management while maintaining enhanced detection capability for malware-generated domain names.
Data Source
AI summary
In some examples, a Domain Name System (DNS) server is to receive, over a network, a DNS query containing a domain name, the DNS query sent by a device. The DNS server is to determine whether the domain name is potentially generated by malware. In response to determining that the domain name is potentially generated by malware, the DNS server is to generate a DNS response containing information indicating that the domain name is potentially generated by malware, and send the DNS response to the network.