lam AntiVirus (ClamAV) is a free, cross-platform and open-source antivirus software toolkit able to detect many types of malicious software, including viruses. Developed by Cisco
License: Open Source
Clam AntiVirus is an open-source solution that is lightweight and suitable for users looking for basic malware protection, while Avast! Pro Antivirus offers a more comprehensive suite of features including firewall and VPN, making it ideal for users needing extensive security options.