360 Total Security antivirus is an internet security software that provides protection against viruses, malware, and other online threats such as trojans, worms, rootkits, and more. 360 Total Security also includes a firewall to block incoming and outgoing traffic from malicious programs. In addition, 360 Total Security provides a web browser extension that blocks malicious websites and phishing attempts.

360 Total Security is available in both free and paid versions. The free version provides basic protection against viruses and malware, while the paid version offers additional features such as antispam filtering, and firewall protection.

It is important to note that 360 Total Security is not a replacement for a traditional antivirus program. It is recommended that you use both an antivirus program and 360 Total Security for complete protection against all types of threats. Overall, 360 Total Security is a solid choice for an antivirus solution, especially if you're looking for a free option.