I know that this subject has been covered before. 

Here is the link: https://forum.colemak.com/viewtopic.php?id=163

Example below, of what Softpedia can do;

Everest Home Edition 2.20 - SOFTPEDIA "100% CLEAN" AWARD
This product was last tested in the Softpedia Labs on 1st of February 2007 by Gabriela Ghinita

Softpedia guarantees that Everest Home Edition 2.20 is 100% Clean, which means it does not contain any form of malware, including but not limited to: spyware, viruses, trojans and backdoors.

This software product was tested thoroughly and was found absolutely clean; therefore, it can be installed with no concern by any computer user. However, it should be noted that this product will be retested periodically and the award may be withdrawn, so you should check back occasionally and pay attention to the date of testing shown above.