Knowing who to watch: Identifying attackers whose actions are hidden within false alarms and background noise
Knowing who to watch: Identifying attackers whose actions are hidden within false alarms and background noise
复制标题
知道要监视谁:识别其行为隐藏在误报和背景噪音中的攻击者
DOI:
10.1007/s10796-010-9268-7
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发表时间:
2010
影响因子:
5.9
通讯作者:
Chivers H
中科院分区:
文献类型:
--
作者:
Chivers H
Insider attacks are often subtle and slow, or preceded by behavioral indicators such as organizational rule-breaking which provide the potential for early warning of malicious intent; both these cases pose the problem of identifying attacks from limited evidence contained within a large volume of event data collected from multiple sources over a long period. This paper proposes a scalable solution to this problem by maintaining long-term estimates that individuals or nodes are attackers, rather than retaining event data for post-facto analysis. These estimates are then used as triggers for more detailed investigation. We identify essential attributes of event data, allowing the use of a wide range of indicators, and show how to apply Bayesian statistics to maintain incremental estimates without global updating. The paper provides a theoretical account of the process, a worked example, and a discussion of its practical implications. The work includes examples that identify subtle attack behaviour in subverted network nodes, but the process is not network-specific and is capable of integrating evidence from other sources, such as behavioral indicators, document access logs and financial records, in addition to events identified by network monitoring.
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DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
Joseph T. Wells
通讯作者:
Joseph T. Wells
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
J. Sullivant
通讯作者:
J. Sullivant
DOI:
--
发表时间:
2004
期刊:
International Conference on Information Technology
影响因子:
--
作者:
P. Bradford;Marcus Brown;J. Perdue;Bonnie Self
通讯作者:
Bonnie Self
DOI:
--
发表时间:
2008
期刊:
Fusion
影响因子:
--
作者:
J. Buford;L. Lewis;G. Jakobson
通讯作者:
G. Jakobson
DOI:
--
发表时间:
1992
期刊:
影响因子:
--
作者:
P. Winston
通讯作者:
P. Winston