发明授权
US07957372B2 Automatically detecting distributed port scans in computer networks
失效
自动检测计算机网络中的分布式端口扫描
- 专利标题: Automatically detecting distributed port scans in computer networks
- 专利标题(中): 自动检测计算机网络中的分布式端口扫描
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申请号: US10896733申请日: 2004-07-22
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公开(公告)号: US07957372B2公开(公告)日: 2011-06-07
- 发明人: Alan David Boulanger , Robert William Danford , Kevin David Himberger , Clark Debs Jeffries
- 申请人: Alan David Boulanger , Robert William Danford , Kevin David Himberger , Clark Debs Jeffries
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理机构: Dillon & Yudell LLP
- 主分类号: H04L12/28
- IPC分类号: H04L12/28 ; G06F9/00 ; G06F11/00
摘要:
A detection and response system including a set of algorithms for detecting within a stream of normal computer traffic a subset of (should focus on network traffic eliciting a response) TCP or UDP packets with one IP Source Address (SA) value, one or a few Destination Address (DA) values, and a number exceeding a threshold of distinct Destination Port (DP) values. A lookup mechanism such as a Direct Table and Patricia search tree record and trace sets of packets with one SA and one DA as well as the set of DP values observed for the given SA, DA combination. The detection and response system reports the existence of such a subset and the header values including SA, DA, and multiple DPs of the subset. The detection and response system also includes various administrative responses to reports.