Could be a FP and Rising AV says that WSA installer is a PE:Stealer.Zbot!1.6524 on VT. So just report it to the support inbox. Webroot Customer Service TH
Are you sure you're not being redirected to softonic like an example and that webroot is detecting something in the installer? See: https://www.wilderssecurity.com/showpost.php?p=2328356&postcount=1263 And: https://www.wilderssecurity.com/showpost.php?p=2329747&postcount=1273