Title:
INFECTION PROBABILITY CALCULATION DEVICE, INFECTION PROBABILITY CALCULATION METHOD, AND INFECTION PROBABILITY CALCULATION PROGRAM
Document Type and Number:
Japanese Patent JP2020071645
Kind Code:
A
Abstract:
To estimate impacts of an event caused by cyber-attacks and the like on other terminals within a network.SOLUTION: An infection probability calculation device 10 receives, amongst terminals within a network, information of a first terminal infected with malware. Then, the infection probability calculation device 10 calculates, amongst the terminals within the network, a posterior probability of the malware infection for each of second terminals, based on a probability of the malware infection for each of the second terminals having a possibility to be an infection source of the malware, the information of the first terminal infected with the malware, and network configuration definition information 122. Thereafter, the infection probability calculation device 10 calculates, amongst the terminals within the network, a probability of the malware infection for each of third terminals that are terminals other than the first terminal and the second terminals, based on the calculated posterior probability of the malware infection for each of the second terminals, and the network configuration definition information 122, and outputting the calculated result.SELECTED DRAWING: Figure 2
Inventors:
TAKAHASHI KEI
KISHI KOJI
KURA TSUNEKO
KISHI KOJI
KURA TSUNEKO
Application Number:
JP2018204929A
Publication Date:
May 07, 2020
Filing Date:
October 31, 2018
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE
International Classes:
G06F21/56; G06F21/57
Attorney, Agent or Firm:
Sakai International Patent Office