Method and system for identifying malicious program

Abstract

The invention relates to a method and a system for identifying a malicious program. The method comprises the following steps: 1. acquiring information and acts of all processes in a computer system, establishing a process relational tree according to the set membership among the processes, and storing a process information and a process behavior list corresponding to each process; 2. classifying the process behaviors in the process behavior list of the parent process, and allocating the information of the parent process to sub-process according to the classification and the order of the process relation tree from top to bottom; 3. symbolizing according to the process relation tree and the process information, judging a malicious program based on a preset malicious behavior threshold, and running the malicious program in the computer system to obtain an expert system for judging the malicious program; and 4. when the process of a new program is created, using the expert system to judgewhether the new program is a malicious program. Compared with the prior art, the invention lowers the implementation complexity and can improve the efficiency.

Description

technical field [0001] The invention relates to the field of information security, in particular to a method and system for identifying malicious programs. Background technique [0002] With the rapid development of computers and the Internet, software with malicious behaviors such as viruses, Trojan horses, and worms (hereinafter collectively referred to as malware) emerges in an endless stream, and new viruses are produced almost every day, spreading and damaging, causing great harm to the majority of Internet users. The hazards pose a serious threat to system security. Therefore, the security of computers and networks has aroused people's general attention. So far, the corresponding application of prevention and control strategies include anti-virus software, intrusion detection systems, firewalls, physical network gates and so on. As the technology of malicious software is constantly updated with the development of computer technology, it presents an increasing number a...

AI Technical Summary

Problems solved by technology

Therefore, the policies within the system are vulnerable to interference by malicious programs, resulting in inaccurate results

Although programs outside the system do not have this defect, because malicious programs can easily detect whether they are running in the anti-malware program system (the real environment is very different from the environment constructed by anti-malware software), which leads to the failure of dynamic analysis

Images