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.
Patent No.:
Date of Patent:
Apr. 16, 2019
Filed:
Jul. 10, 2017
Mitsui Bussan Secure Directions, Inc., Tokyo, JP;
MITSUI BUSSAN SECURE DIRECTIONS, INC., Tokyo, JP;
Abstract
The present invention provides a program, an information processing apparatus, and an information processing method which can effectively prevent malware attacks. A predetermined process is judged as a ransomware, when a first condition that a file read function for reading a file included in a same file path as a file path written by a file write function called from the predetermined process has been already called from the predetermined process; and a second condition that the file write function rewrites a header of a file of the file path: are satisfied. A predetermined process is judged as a ransomware, when a first condition that an actual file on a disk is mapped as a virtual file on a memory by the predetermined process; a second condition that the virtual file is unmapped by the predetermined process; and a third condition that a file structure of the actual file or the virtual file when unmapping is rewritten to inappropriate status: are satisfied.