I've been facing the issue for a week now. Have and use the latest premium version of Videoder on 3 devices of mine, but the adware appeared on only one of them. Not uninstalling the app or of curiosity and since really like it.
Today, after the appsquare site opened yet again, found a 200kb .com file in my Download folder. Attaching it here for you to investigate.
Warning for the rest: the file attached is most probably a virus, don't Download it unless you know what you're doing!