Open the file inside a tool like VirtualBox or VMware. This keeps the execution isolated from your actual computer.
In the cybersecurity world, a .rar file with a name like "CryptoBlockpro" is often a . Because .rar and .zip files can bypass some basic email filters, they are the preferred vehicle for delivering malicious payloads.
Inside, there is often an .exe or .js file designed to look like a setup wizard.