Side-question: will freefilesync installed via brew contain the adware?
$ brew cask install freefilesync
==> Downloading http s://download2114.mediafire.com/dl0o9adlw80g/bzdxny1n7cxozkh/FreeFileSync_8.6_macOS.zip
######################################################################## 100.0%
==> Verifying checksum for Cask freefilesync
==> Note: running "brew update" may fix sha256 checksum errors
Error: sha256 mismatch
Expected: aaa1dd1e2dfcc39bf4673d8280cc6561ee8dc9921c4deb926ed336dd5aa1d57b
Actual: f6f434479c0fef1b101988b72f95a0a8672d33aabca4653b0aeb900c2164fe3b
File: /Users/user/Library/Caches/Homebrew/Cask/freefilesync--8.6.zip
To retry an incomplete download, remove the file above.
