If your antivirus software detects a virus in a Blizzard game folder, the detection will most likely be a false positive.
When a Boku payment does not go through after waiting 24 hours
The code of conduct for Blizzard Entertainment forums
What to do if you chose the wrong Tavern Pass Reward.
Troubleshooting steps to resolve the error "Heads up! Something Went Wrong. Select another payment method or try again later."
What to do if Battle.net Mobile Application does not load properly
What to do if you can't complete a purchase in Battle.net Shop when asked to type your password
Troubleshooting game or Battle.net services connection error BLZBNTAGT00000BB8
Information on "Tavern Regular" achievement in Hearthstone