Free Malwarebytes
From Malwarebytes:
Next-gen antivirus that protects your finances, data, and digital privacy from online hackers.
Supported Operating Systems

Available for Windows and Mac.
VPN requirement

Connection to campus VPN is not required.
University-Owned Machines
UA machines will automatically install Malwarebytes after they have been joined to the UA domain by one of the IT personnel.
Personal Machines
1. Visit https://my.malwarebytes.com/portal
2. Enter your UA affiliated email and select “Claim Malwarebytes License”
3. Create an account with Malwarebytes
4. A Verification code will be sent to your UA email.
5. Enter the code and verify your Email.
6. Under the Subscriptions tab on your account, select “Activate Now” to download and activate the Malwarebytes standard license on your device.