Analyst is investigating proxy logs and found out that one of the internal user visited website storing suspicious java scripts. After opening one of them, he noticed that it is very hard to…

Analyst is investigating proxy logs and found out that one of the internal user visited website storing suspicious java scripts. After opening one of them, he noticed that it is very hard to understand the code and that all codes differ from the typical java script. What is the name of this technique to hide the code and extend analysis time?