Summary: | 碩士 === 國立中央大學 === 資訊工程學系 === 103 === The rising of malicious software and network APT attacks severely brings the risk of security exploitation to all the enterprises and personal computers. Therefore, security vendors are dedicated to provide the service with more diversity in order to protect their customers from global malicious attacks. Antivirus actively provides a high quality service to protect computer security. However single security vendor may still be confronted with several problems, such as significant detection windows, antivirus self vulnerability, and tedious time consuming tasks on scanning whole system files. Actually, most users may pay closely attention to both the detection rate and the speed of scanning tasks of antivirus software.
In this thesis, we propose a defense mechanism named CatPaw to resist the intrusion of malware and malicious contents. Windows operating system will be selected as the platform to verify our design. System software or others user applications will be scanned by sending them to VirusTotal on the Internet before executing by operating systems. If the test passes without hesitation, the file can be executed continuously. Real time scanning on VirusTotal can not only provide security service with more reliability and more accurately by using multiple antivirus engines, but also provide 24 hours real time protection for users. Furthermore, scanning the files only triggered by users instead of scanning all the files in the disk by traditional single antivirus software will make it as efficient as possible.
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