The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 06, 2026

Filed:

Oct. 18, 2021
Applicant:

Ntt, Inc., Tokyo, JP;

Inventors:

Toshinori Usui, Musashino, JP;

Tomonori Ikuse, Musashino, JP;

Yuhei Kawakoya, Musashino, JP;

Makoto Iwamura, Musashino, JP;

Assignee:

NTT, Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/455 (2018.01);
U.S. Cl.
CPC ...
G06F 9/45558 (2013.01); G06F 2009/45591 (2013.01);
Abstract

An analysis function providing method executed by an analysis function providing device includes first analyzing a virtual machine of a script engine, and acquiring a hook point that is a part where an analysis code is inserted by applying a hook, and a virtual program counter that is a variable indicating an instruction of the virtual machine to be executed next, second analyzing an instruction set architecture that is a system of instructions of the virtual machine and acquiring a branch virtual machine instruction that is a virtual machine instruction that causes branch, and providing an analysis function by applying a hook, to the hook point of the script engine, the hook including processing of, when an exception has occurred, changing a destination pointed by the virtual program counter to a head of a basic block immediately after a basic block in which the exception has occurred.


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