Information technology (it) has gone into people's lives and the impact on many different areas of social life, the network connection also becomes easy and convenient for people to support and help in the activities of management, education, manufacturing. But besides the Add-ons and the practical application of that side of IT, is the existence of some negative component takes advantage of his understanding of programming to create the malicious application, software or computer viruses, virus or viruses.To deal with the virus completely unnoticed simply. Through each era, the number of variants of the virus, increasing the level of hazardous looms, sophisticated and destructive behavior difficult to detect. Thus, the process prevents the virus becomes difficult and expensive human resources. From ask the current reality, we conducted research on solution of virus identification.The solution based on the behavior of the virus is a new research and development. This approach will draw the samples described the behavior of the virus, which turned into a formula in Linear Temporal description Logic (LTL). We will check the prototype virus is based on the structure of the LTL formula is obtained. However, if every just scan with a sample of the virus then the time to scan all the templates will spend a lot of time and resources. Thus, to minimize the number of virus samples need to scan down to the lowest possible level, we offer the solution for this problem is to study search popular file contains virus behavior and just checking out the episode of that popular. Each virus will be represented as a set of behaviors. From the behaviors collection are built a concept. On the concept, we will pick out the most common and important patterns based on popular file search algorithm Max. There are many methods to search popular dark episode, however we choose MAFIA algorithm (MAximal Frequent Itemset Algorithm) to a reality in this essay. MAFIA achieve high search performance with the number of model input data.
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