Hi, I am A. Stevens here to help with your question!
The best thing to do to destroy the virus is a factory reset of the software on your Samsung phone.
Before doing this, you would want to make sure to back up your data - I.E - contacts, photos, etc.
Are you syncing your phone with your Google account? If so, your data should be backed up.
Once you perform the reset, you can then restore your personal data again.
Please let me know and I can instruct you on how to do the reset.