Cobalt Strike can be downloaded from https://trial.cobaltstrike.com/ on a trial basis, which is valid for 21 days. It may take a few days for the site to provide us with the download link:

Cobalt Strike comes in a package that consists of a client and server files. To start with the setup, we need to run the team server. The following are the files that you'll get once you download the package:

The first thing we need to do is run the team server script located in the same directory.

What is a team server? This is the main controller for the payloads that are used in Cobalt Strike. It logs all of the events that occur in Cobalt Strike. It collects all the credentials that are discovered in the post-exploitation phase or used by the attacker on the target systems to log in. It's a simple bash script that calls the Metasploit RPC service (msfrpcd) and starts the server with cobaltstrike.jar. This script can be customized according to your needs.