This morning, as me, thousands of Avast Android users have waken up with the same Avast´s alert reporting that Whatsapp and other apps were infected by a trojan.
Trying to find my information on Google about the message, android:FakeInst-EY[trj], it seems to be a dialer. But this was only the first impression, because the exact alert didn´t case with the seach results.
In just a few minutes it was possible to find lots of people sharing and asking about this on forums, social networks… but nobody had a clue to solve it.
Some users suggested to uninstall Avast, perhaps those users were right in that moment.
Some minutes later, Avast pronounced about in its forum About Android:FakeInst-EY. It´s about a false positive that will be solved within the next update. Or if you can, update manually the antivirus.
A quick response from Avast, facing the problem and managing an issue that could turned into something bigger.
In my case, after uninstall and reinstall Avast on my smartphone is running as always and the alerts are gone.