Analysis on Operation of Anti-Virus Systems with Real-Time Scan and Batch Scan

Abstract

We consider an information system where viruses arrive according to a Poisson process with rate λ. The information system has two types of anti-virus operation policies including 'real-time scan' and 'batch scan.' In the real-time scan policy, a virus is assumed to be scanned immediately after its arrival. Consequently, the real-time scan policy assumes infinite number of anti-viruses. We assume that the time for scanning and curing a virus follows a general distribution. In the batch scan policy, a system manager operates an anti-virus every deterministic time interval and scan and cure all the viruses remaining in the system simultaneously. In this paper we suggest a probability model for the operation of anti-virus software. We derive a condition under which the operating policy is achieved. Some numerical examples with various cost structure are given to illustrate the results.※ 이 논문은 2013년도 한남대학교 교비학술연구조성비 지원에 의하여 연구되었음.First Author：한남대학교 경영학과,