These programs or applications like CastVPN can be described as superfluous. These are mainly legitimate programs that are not necessarily necessary for the proper functioning of your system and sometimes even unwanted.
These programs install as a browser extension, with or without your consent, through freeware installation repackaged, a technique which consists of offering other software during installation. Once installed, they appear in the form of a browser toolbar (Toolbar), a search bar or one of icon allowing the execution of a task or the launch of a program.
Some of these programs can collect information about your browsing habits without your knowledge and resell it to unscrupulous advertising organizations. Installing a large number of extensions causes a slowdown when launching your browser but also an increase in your system's RAM memory, which can considerably hamper you while browsing the Web.
Note that the virus analysis of this software does not show any malicious detection. Read more