초록 ▼

The example embodiments herein relate to an antivirus protection system and method for computers based on program behavior analysis. The antivirus protection system may comprise: a Process Behavior-Evaluating Unit for identifying the programs existing in the user's computers and classifying them int

The example embodiments herein relate to an antivirus protection system and method for computers based on program behavior analysis. The antivirus protection system may comprise: a Process Behavior-Evaluating Unit for identifying the programs existing in the user's computers and classifying them into normal programs and suspect programs; a Program-Monitoring Unit for monitoring and recording the actions and/or behaviors of programs; a Correlation-Analyzing Unit for creating correlative trees and analyzing the correlations of actions and/or behaviors of programs, the correlative trees comprising a process tree and a file tree; a Virus-Identifying Knowledge Base, comprising a Program-Behavior Knowledge Base and a Database of Attack-Identifying Rules; a Virus-Identifying Unit for comparing captured actions and/or behaviors to the information in the Virus-Identifying Knowledge Base to determine whether the program is a virus program. With the techniques of certain example embodiments, it may be possible to increase efficiency and reduce the need to upgrade virus codes after viruses become active, while also effectively blocking unknown viruses, Trojans, etc.

대표청구항 ▼

What is claimed is: 1. An antivirus protection system for computers, comprising:a Process Behavior-Evaluating Unit for identifying programs existing in a user's computer and classifying the programs as normal programs or suspect programs;a Program-Monitoring Unit for monitoring and recording actions

What is claimed is: 1. An antivirus protection system for computers, comprising:a Process Behavior-Evaluating Unit for identifying programs existing in a user's computer and classifying the programs as normal programs or suspect programs;a Program-Monitoring Unit for monitoring and recording actions and/or behaviors of the programs;a Correlation-Analyzing Unit for creating correlative trees and analyzing correlations of actions and/or behaviors of programs, the correlative trees comprising a process tree and a file tree, wherein each node in said process tree represents a process, and stores action and/or behavior information of the respective process during running and index information of the process in the file tree, and further each node has a parent node corresponding to the parent process of the process corresponding the node, and wherein, in the file tree, each node represents a program, and stores information when the program file is created and index information in the process tree, and further each node has a parent node corresponding to the parent process of the process corresponding the node;a Virus-Identifying Knowledge Base, comprising a Program-Behavior Knowledge Base and a Database of Attack-Identifying Rules, wherein the Program-Behavior Knowledge Base stores correlation behaviors of the normal programs and the Database of Attack-Identifying Rules stores correlation behaviors of the suspect programs; anda Virus-Identifying Unit for receiving program actions and/or behaviors captured by the Program-Monitoring Unit, when the program actions and/or behaviors are dangerous actions, calling the correlation-Analyzing Unit to create correlation behavior according to the process tree and the file tree, if the program is a normal program according to the Process Behavior-Evaluating Unit, comparing the captured actions and/or behaviors to information stored in the Program-Behavior Knowledge Base, and if the program is a suspect program, comparing the captured actions and/or behaviors to information stored in the Database of Attack-Identifying Rules to determine whether the program is a virus in dependence on the comparison.