Malware manual removal required

So I tried to download a classic version of Skype after not enjoying the newest version and the Skype website didn't seem to have the download link any longer.  So I downloaded it from a Mac software website and then I got a malware notification on my Sophos.  It's quarantined but it wouldn't clean up automatically and says I need to remove it manually, but I can't figure out how to do it.  Any help would be appreciated!!   Thank you in advance!