FortiClient includes an AV component to scan system files, executable files, removable media, dynamic-link library (DLL) files, and drivers. FortiClient also scans for and removes rootkits. In FortiClient, file-based malware, malicious websites, phishing, and spam URL protection are part of the AV component. FortiClient's AV component supports twelve levels of nested compressed files for scanning.
FortiClient cannot quarantine attachments and files in the macOS Mail directory.