公开(公告)号：US11113391B2

公开(公告)日：2021-09-07

申请号：US16356880

申请日：2019-03-18

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Lap Chung Lam ,  Pan-Jo Chuang ,  Li-Ting Huang ,  Tzy-Shiah Wang ,  Chuan-Yu Cho ,  Tzi-Cker Chiueh

IPC: G06F21/00 ,  G06F21/54

Abstract: A method for preventing malicious software from attacking files of a computer system includes the following steps. Whether a file type of a specific file corresponding to an input/output (I/O) request is a to-be-backed-up file type is checked, wherein the to-be-backed-up file type belongs to one of multiple predetermined file types susceptible to malicious software attack. When the file type of the specific file is the to-be-backed-up file type, a backup already tag in a file context tag structure of the specific file is checked. When the backup already tag shows that the specific file has not been backed up, a backup process is performed for the specific file.