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    • 3. 发明授权
    • System and method for defending against distributed denial-of-service attack on active network
    • 用于防御活动网络上的分布式拒绝服务攻击的系统和方法
    • US07200866B2
    • 2007-04-03
    • US10640400
    • 2003-08-14
    • Hyun Joo KimJung-Chan NaSung Won Sohn
    • Hyun Joo KimJung-Chan NaSung Won Sohn
    • G06F11/00
    • H04L63/1458
    • A system for defending against a distributed denial-of-service attack includes an intrusion detection system, an active security management system and an active security node. The intrusion detection system generates alert data if a denial-of-service attack is detected. The active security management system manages a domain, analyzes the alert data, generates and transmits a backtracking sensor in a case of the distributed denial-of-service attack, transmits mobile sensors to a host backtracked by the backtracking sensor to remove a master or an agent program within the host; and generates and transmits a backtracking sensor by using an IP address of a host that has transmitted a packet to the removed master or agent program. The active security node executes the transmitted backtracking sensor to backtrack an attacking host of the distributed denial-of-service attack and, if the backtracked host is determined as a real attacker, intercepts a traffic generated from the real attacker.
    • 防范分布式拒绝服务攻击的系统包括入侵检测系统,主动安全管理系统和主动安全节点。 如果检测到拒绝服务攻击,入侵检测系统会生成警报数据。 主动安全管理系统管理域,分析警报数据,在分布式拒绝服务攻击的情况下生成并发送回溯传感器,将移动传感器发送到由回溯传感器回溯的主机,以移除主服务器或 主机内的代理程序; 并通过使用已经向已移除的主机或代理程序发送分组的主机的IP地址来生成并发送回溯传感器。 主动安全节点执行传输的回溯传感器以回溯攻击主机的分布式拒绝服务攻击,并且如果回溯主机被确定为真正的攻击者,则截获从真实攻击者产生的流量。