WireGuard-GRE Traffic Tunneling for Distributed Malware Detection
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Solution Overview
Problem
Existing cybersecurity methods, such as sandboxes and VPNs, are ineffective against advanced malware that can bypass IP address detection and target specific corporate subnets, requiring resource-intensive client-server architectures and lacking central management of IP addresses in distributed networks.
Innovation Solution
Implementing a two-layer tunneling system using WireGuard and GRE levels, with a central server managing IP addresses, allowing encapsulation and decapsulation of packets to maintain anonymity and detect malicious content across a distributed network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If simple NAT technique is used to replace sandbox IP address with corporate subnet IP address, then IP address anonymity is improved, but the solution becomes ineffective because corporate subnet ignores incoming packets that were not originally sent by it
Solution Approach 1:
The patent introduces a VPN server as an intermediary component between the sandbox and the corporate network. The VPN server performs NAT operations and acts as a mediator that forwards packets bidirectionally, ensuring that responses from external servers are properly routed back to the sandbox. This resolves the contradiction by maintaining simplicity while ensuring effectiveness through the intermediary's packet forwarding capability.
2Reliability
If VPN with client-server architecture is used to perform natting and denatting operations, then IP address replacement effectiveness is improved, but resource consumption increases due to maintaining large number of connections
Solution Approach 1:
The patent implements a distributed network where each node (emitter and gateway) performs NAT and denatting operations autonomously based on local configuration tables. This eliminates the need for a centralized VPN server to maintain all connections, allowing each node to serve itself and reducing overall resource consumption while maintaining effective IP address replacement.
3Productivity
If distributed network without central management of IP addresses is used, then resource efficiency is improved, but coordination and routing between nodes becomes complex
Solution Approach 1:
The patent implements pre-computed routing tables that are distributed to all nodes before operation. These tables contain all necessary IP address mappings and routing information, allowing nodes to perform NAT and routing operations autonomously without real-time coordination. This preliminary action resolves the contradiction by enabling resource-efficient distributed operation while avoiding runtime coordination complexity.
Data Source
AI summary
A method and system for tunneling traffic in a distributed network are provided. The method comprises: adding, by a central server, at least one emitter and at least one gateway to a neighbor table hosted on the at least one central server; transmitting an IP address of a given emitter to a respective gateway; transmitting an IP address of the respective gateway to the given emitter; in response to receiving a given packet of outgoing traffic from the given emitter, decapsulating the given packet; identifying at the WireGuard level of the given packet, the IP address of the respective gateway associated with the given emitter; encapsulating the given packet at the WireGuard level and the GRE level; and forwarding the given packet of outgoing traffic to the respective gateway for natting for transmitting the given packet to an external server on behalf of the respective gateway.