Title:
ANALYSIS DEVICE, ANALYSIS SYSTEM, ANALYSIS METHOD, AND ANALYSIS PROGRAM
Document Type and Number:
WIPO Patent Application WO/2016/068007
Kind Code:
A1
Abstract:
Provided is an analysis device (10) which analyzes access logs which include user authentication results and authentication information, said device comprising: a computation unit (13) which, when, among access logs, access logs with the same access source are arranged in time series, computes a similarity of authentication information in two contiguous access logs, and when the computed similarity is greater than or equal to a prescribed value, extrapolates that the user's access log authentication information is from an input of a person; and a risk assessment unit (14) which, when the authentication result of either of the two access logs is an authentication failure, and it is extrapolated in the computation unit (13) that the authentication information of either of the two access logs is not from an input of a person, assesses that it is possible that the access source in the access log is a hacking source.
Inventors:
ORIHARA SHINGO (JP)
ASAKURA HIROSHI (JP)
ZHONG YANG (JP)
ASAKURA HIROSHI (JP)
ZHONG YANG (JP)
Application Number:
PCT/JP2015/079796
Publication Date:
May 06, 2016
Filing Date:
October 22, 2015
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G06F21/30; G06F21/55
Foreign References:
| JPH09212458A | 1997-08-15 | |||
| JP2010079562A | 2010-04-08 |
Other References:
NEC CORP.: "InfoCage SiteShell Ver2.0.1 Password List Kogeki Taisaku Settei Tejunsho", 9 November 2015 (2015-11-09), pages 6, Retrieved from the Internet
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
Patent business corporation Sakai international patent firm (JP)
Patent business corporation Sakai international patent firm (JP)
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