Flow mode stream-based scanning NEW
In flow mode with AV engine 7.0, FortiOS automatically uses stream-based antivirus scanning for HTML and Javascript files. The AV engine determines the necessary amount of file payload to buffer and scans the partial buffer in certain instances, eliminating the need to cache the entire file, and potentially improving memory usage.
Prior to AV engine 7.0, the whole file was cached before AV engine scanning started, and this legacy antivirus scanning method is retained for file types and configurations unsupported by stream-based scanning. As a result, the following types of scans are supported:
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Default antivirus scans for HMTL and Javascript files
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Legacy antivirus scans
The following table summarizes the types of scans and when they are automatically used:
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Default antivirus scan |
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Legacy antivirus scan |
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