Global to push GA events into
skip to main content
  • DOepatents
  • Using new edges for anomaly detection in computer networks

Title: Using new edges for anomaly detection in computer networks

Creation of new edges in a network may be used as an indication of a potential attack on the network. Historical data of a frequency with which nodes in a network create and receive new edges may be analyzed. Baseline models of behavior among the edges in the network may be established based on the analysis of the historical data. A new edge that deviates from a respective baseline model by more than a predetermined threshold during a time window may be detected. The new edge may be flagged as potentially anomalous when the deviation from the respective baseline model is detected. Probabilities for both new and existing edges may be obtained for all edges in a path or other subgraph. The probabilities may then be combined to obtain a score for the path or other subgraph. A threshold may be obtained by calculating an empirical distribution of the scores under historical conditions.
Inventors:
Issue Date:
OSTI Identifier:
1459412
Assignee:
Los Alamos National Security, LLC (Los Alamos, NM) LANL
Patent Number(s):
10,015,183
Application Number:
15/637,475
Contract Number:
AC52-06NA25396
Resource Relation:
Patent File Date: 2017 Jun 29
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING
[ × clear filter / sort ]

Works referenced in this record:

Systems And Methods For A Simulated Network Attack Generator
patent-application, December 2009
Adaptive ROC-based ensembles of HMMs applied to anomaly detection
journal, January 2012
A survey of coordinated attacks and collaborative intrusion detection
journal, February 2010
  • Zhou, Chenfeng Vincent; Leckie, Christopher; Karunasekera, Shanika
  • Computers & Security, Vol. 29, Issue 1, p. 124-140
  • DOI: 10.1016/j.cose.2009.06.008
Botnets: A survey
journal, February 2013
  • Silva, Sérgio S. C.; Silva, Rodrigo M. P.; Pinto, Raquel C. G.
  • Computer Networks, Vol. 57, Issue 2, p. 378-403
  • DOI: 10.1016/j.comnet.2012.07.021
Identifying botnets by capturing group activities in DNS traffic
journal, January 2012
The link-prediction problem for social networks
journal, January 2007
  • Liben-Nowell, David; Kleinberg, Jon
  • Journal of the American Society for Information Science and Technology, Vol. 58, Issue 7, p. 1019-1031
  • DOI: 10.1002/asi.20591

    Similar records in DOepatents and OSTI.GOV collections: