There is no such thing as a "verified" third-party download for a game executable. If your is missing, always use the Steam Verification tool. It is the only way to ensure your account stays secure and your game stays playable.

Add the game folder to your "Exclusions" list so it doesn't happen again. Method 3: Reinstall the Game

Most standalone .exe downloads are "wrappers" that contain trojans, keyloggers, or credential stealers designed to grab your Discord, Steam, or banking logins.