just load it into the audio channel (or channels) your Virus is playing in, and tweak away. just like you would with any other fx, and mix it to suit your needs
or record the audio and apply afterwards (some DAWS allow you to listen to the audio channels and record audio prior to fx or record the audio mixed with the fx, the later you'd have to compromise, so search for those options on the manual, otherwise, if unsure, just record the audio and apply the effect later on).