TC: Small: Dynamic Early Filtering of Botnet Garbage Traffic

目前，互联网上有越来越多的不需要的、未经请求的“垃圾”数据包，主要由僵尸网络产生，它们可以发起分布式拒绝服务攻击、蠕虫攻击和垃圾邮件。这些垃圾数据包被允许在互联网上穿行，造成严重的流量负担，浪费通信资源，破坏互联网。S正常函数。为了增加因特网的可用性和可靠性，这些数据包需要在尽可能接近其来源的地方丢弃。本项目旨在建立一个全面和可持续的架构，协调互联网中的路由器，实现对互联网流量中的僵尸网络垃圾数据包的早期过滤。该体系结构包括四个主要组件：规则生成组件、规则传播组件、规则管理组件和规则安全组件。目标是调查和量化垃圾流量最初消耗的节省带宽与路由器额外过滤开销引入的吞吐量降低之间的权衡，并在权衡函数下找到最优解。评估计划将使用在各种流量轨迹和网络拓扑下开发的基准来评估所开发算法和技术的性能，并得出在不同攻击场景下应该传播和安装过滤规则的程度和范围，以优化性能。该项目的完成将创造技术和软件，全面提高互联网的安全性和容量。此外，垃圾流量的早期过滤将限制大规模僵尸网络攻击造成的损害，降低isp的运营成本，提高许多在线服务和应用程序的性能，并提高关键国家基础设施的可靠性。

Currently in the Internet there is an increasing number of unwanted, unsolicited "garbage" packets mainly generated by botnets, which can launch Distributed Denial-of-Service attacks, worm attacks, and spam. These garbage packets are allowed to traverse the Internet to cause severe traffic burdens, waste communication resources, and disrupt the Internet?s normal functions. Such packets need to be discarded as close to their sources as possible to increase the availability and reliability of the Internet.This project aims to establish a comprehensive and sustainable architecture that coordinates the routers in the Internet to achieve early filtering of botnet garbage packets in Internet traffic. The architecture comprises four major components: rule generation component, rule dissemination component, rule management component, and rule security component. The objective is to investigate and quantify the tradeoff between the saved bandwidth originally consumed by the garbage traffic and the throughput slowdown introduced by the routers' extra filtering overhead, and find optimal solutions under the tradeoff function. The evaluation plan will use benchmarks developed under various traffic traces and network topologies to evaluate the performance of the developed algorithms and technologies, and derive insights on how far and wide the filtering rules should be disseminated and installed under different attack scenarios in order to optimize the performance.Completion of the project will create techniques and software that improve the security and capacity of the Internet overall. Additionally, early filtering of garbage traffic will limit the damages caused by large-scale botnet attacks, reduce operational costs for ISPs, enhance the performance of many online services and applications, and increase the reliability of critical national infrastructures.