If the proxy deems the content to be harmful, the download will be halted and the user will be redirected to an error page. You can also enhance your network security further by the built-in Intrusion Prevention System and Category Based Web filtering or third-party Zenarmor next-generation firewall plugin.Īntivirus proxies function similarly to traditional web proxies, with the exception that they scan all content passing through the proxy for malware or virus signatures. To provide maximum protection against malware such as ransomware, trojans, and viruses, an external engine from a well-known vendor is used. OPNsense provides HTTP(S) protection by utilizing its highly flexible proxy and the industry-standard ICAP. How to Enable Antivirus Protection in OPNsense?