Its the component of the program that links to courselab to register the software. This action does mimic what a tojan might do, install then set up comms with a remote host.
You might say why doesn't this happen with say MS products, well it's because they are usually on a safe list which actually represents a massive security risj should an MS product ever be compromised. And yes some downloads of MS items NOT directly from MS have had this happen.
You notice that no actual named virus or virus type is mentioned, just that a risk exists. This means there is a POTENTIAL problem but not neccesarily a REAL problem.
The response, deleting a file is severe overkill. Imagine if you had had to purchase Courselab at a likely retail price of up to $1000 wouldn't you be upset.
At the end of the day it should be your assessment of risk that defines your reaction to suspect files. In this case the risk is low.