公开(公告)号：US20200380128A1

公开(公告)日：2020-12-03

申请号：US16497124

申请日：2017-12-20

Applicant: NEC CORPORATION

Inventor： Tatsuya ITO

IPC: G06F21/56 ,  G06F16/903 ,  G06F21/57

Abstract: A signature generating device (2) includes a collecting unit (11) configured to collect threat information, an extracting unit (21) configured to extract attack data from the threat information collected by the collecting unit (11), and a generating unit (31) configured to generate a signature on the basis of the attack data extracted by the extracting unit (21). When plural pieces of attack data having a common character string are extracted by the extracting unit (21), the generating unit (31) tentatively generates a signature including the common character string, evaluates whether a tentatively generated signature includes a character string used in non-attack data, and when the tentatively generated signature includes the character string used in the non-attack data, removes the character string from the tentatively generated signature to generate a signature.

公开(公告)号：US20200007407A1

公开(公告)日：2020-01-02

申请号：US16490682

申请日：2017-12-20

Applicant: NEC Corporation

Inventor： Tatsuya ITO

IPC: H04L12/24 ,  H04L12/26 ,  H04L12/46

Abstract: A network building apparatus (2) includes a collection unit (11) configured to scan each node connected to a network and collect environmental data of the network, a design unit (21) configured to design a virtual network obtained by virtualizing the network based on the environmental data collected by the collection unit (11), and an output unit (31) configured to output design data of the virtual network designed by the design unit (21).

公开(公告)号：US20190163906A1

公开(公告)日：2019-05-30

申请号：US16320677

申请日：2017-07-21

Applicant: NEC CORPORATION

Inventor： Tatsuya ITO

IPC: G06F21/56

Abstract: Provided is a signature generation device, etc., generating signature information with high accuracy. The signature generation device calculates hash values for at least a partial area in individual files; calculates a similarity degree between the calculated hash values and classifies the plurality of files into groups based on the calculated degree; specifies common strings among, at least, some of the files in strings included in files of a group, the strings being symbol strings or bit strings; and generates signature information being a criterion for determining whether or not at least a part of the common string in the specified common strings is included.

公开(公告)号：US20210377129A1

公开(公告)日：2021-12-02

申请号：US17358763

申请日：2021-06-25

Applicant: NEC CORPORATION

Inventor： Tatsuya ITO

IPC: H04L12/24 ,  H04L12/46

Abstract: A network building apparatus (2) includes a collection unit (11) configured to scan each node connected to a network and collect environmental data of the network, a design unit (21) configured to design a virtual network obtained by virtualizing the network based on the environmental data collected by the collection unit (11), and an output unit (31) configured to output design data of the virtual network designed by the design unit (21).

公开(公告)号：US20190213190A1

公开(公告)日：2019-07-11

申请号：US16334074

申请日：2017-09-20

Applicant: NEC CORPORATION

Inventor： Tatsuya ITO ,  Yuki ASHINO ,  Masato YAMANE

IPC: G06F16/2455 ,  G06F16/25 ,  G06N20/00

CPC classification number: G06F16/24558 ,  G06F16/00 ,  G06F16/254 ,  G06N5/02 ,  G06N20/00

Abstract: An information collection system for efficiently collecting target information from an enormous amount of contents in a variety of formats is provided. The information collection system 100 includes a learning unit 110 and an extraction unit 130. The learning unit 110 generates, by using learning data, a parser rule for extracting a target character string from data, the target character string being a character string including specific information. The extraction unit 130 extracts the target character string from data by using the parser rule.