US 11,113,391 B2 · Method and computer system for preventing malicious software from attacking files of the computer system and corresponding non-transitory computer readable storage medium

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.

Claims19

Dependent claims

A method for preventing malicious software from attacking files of a computer system, the method comprising:

checking whether a file type of a specific file corresponding to an input/output (I/O) request is a to-be-backed-up file type, wherein the to-be-backed-up file type belongs to one of multiple predetermined file types susceptible to malicious software attack;
checking a backup already tag in a file context tag structure of the specific file when the file type of the specific file is the to-be-backed-up file type;
and
performing a backup process for the specific file when the backup already tag shows that the specific file has not been backed up.

1 more element

A computer system for preventing malicious software from attacking files of the computer system, comprising:

a storage device storing a specific file, wherein an I/O request corresponds to the specific file;
and
a processor executing multiple instructions stored in the storage device to check whether a file type of the specific file corresponding to the I/O request is a to-be-backed-up file type, wherein the to-be-backed-up file type belongs to one of multiple predetermined file types susceptible to malicious software attack;
wherein 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;
and a backup process for the specific file is performed when the backup already tag shows that the specific file has not been backed up.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/356,880Filed 18 Mar 2019

Priority

TW 10713738623 Oct 2018

Published

US 2020/0125723 A123 Apr 2020

Granted

7 Sep 2021

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

G06F 21/54
During program execution, e.g. stack integrity ; Preventing unwanted data erasure; Buffer overflow: by adding security routines or objects to programs
G06F 21/554
Detecting local intrusion or implementing counter-measures: involving event detection and direct action
G06F 21/80
To assure secure storage of data: in storage media based on magnetic or optical technology, e.g. disks with sectors
G06F 2221/034
Indexing scheme relating to G06F21/50, monitoring users, programs or devices to maintain the integrity of platforms: test or assess a computer or…

Method and computer system for preventing malicious software from attacking files of the computer system and corresponding non-transitory computer readable storage medium

Life of this patent

Method and computer system for preventing malicious software from attacking files of the computer system and corresponding non-transitory computer readable storage medium

Life of this patent

Abstract

Claims19