

Parasitical RATs, also known as remote administration trojans, are very similar to backdoors and have very similar functionality. Remote administration tools are divided into malicious and legitimate applications. The server part runs on a controlled computer and receives commands from the client, which is installed on the remote host. Such apps are typically based on based on the server and client technology, where a remote connection can occur via the local network or the Internet. There are thousands of such apps available, some of which might be open source or viable commercially. Remote administration tools are initially legitimate applications that can be used to monitor somebody's actions in real-time. Remote administration tools are legitimate until hackers get their hands on them
