Here are the ways to prevent the virus

Do not install an app that you do not know about: Do not install a stranger app if you do not eat, if you do not eat any food.  Currently hackers send messages to install their created app via email, massage etc.  What you don't know about COR is that you won't be able to install it.  It may be that hackers will get all your information through this app.

Install the app from Google Play or the Trusted App Store: Where do you usually buy food?  From the pavement or from a store in the fridge to keep it safe?  Definitely from the safe shop.  Download such apps from Google Play or secure from any app store (not worse than the Amazon App Store) They check each app separately.  So naturally the App Store is much safer.

"Install from unknown sources" - Keep off: Install from unknown sources means the app can be installed from anywhere other than the Verified App Store.  But there are many security risks involved.  And mark it up on Verify Apps.  It will confirm your device about the app from the net before installing any app on it.

Read the permissions before installing the app: This is the best way to avoid unwanted apps.  This app will be able to access the keys of your device when you read the permissions.  If you think it wants access to something that has nothing to do with it, it's better not to install this app.  And if your device wants to access its contacts, account information, consider once you install.

Can install Antivirus: On An mobile using Antivirus.  Many do not.  What should you do  I will say that if you install everything from Google Play or Verified App Store then you do not have to install Antivirus.  Google Play scans each app accurately.  However, you can install Antivirus for additional precautions.