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IMPORTANT
SNS 3.x versions have reached End of Maintenance since July 1st, 2024.
We recommend that you update your SNS firewalls to a version with maintenance to guarantee the protection of your infrastructure.

# Analyzing files tab

Maximum size for antivirus and sandboxing analysis (KB) | In this field, the maximum size used for scanning files can be determined. You can also configure the action to perform if the file exceeds the allowed size. WARNING When manually defining a size limit for analyzed data, ensure that all values are coherent. The total memory space corresponds to a common space for all the resources reserved for the Antivirus service. If you define the size limit for data analyzed over FTP as 100% of the total size, no other files can be analyzed at the same time. The default size depends on the firewall model: S model firewalls (SN160(W), SN210(W) and SN310): 4000 KB. M model firewalls (SN510, SN710, SNi20 and SNi40): 4000 KB. L model firewalls (SN910): 8000 KB. XL model firewalls (EVA1, EVA2, EVA3,EVA4, EVAU, SN2000, SN2100, SN3000, SN3100, SN6000 and SN6100): 16000 KB.
Analyzing files | This option allows choosing the type of file that needs to be scanned: “downloaded and sent” files; “downloaded only” or “sent only” files.

## Actions on files

When a virus is detected | This field contains 2 options. "Pass" and "Block". By selecting “Block”, the analyzed file will not be sent. By selecting “Pass”, the antivirus will send the file in its original form.
When the antivirus scan fails | This option defines the behavior of the antivirus module if the analysis of the file it is scanning fails. Example: The file could not be scanned as it has been locked. If Block has been specified, the file being scanned will not be sent. If Pass without analyzing has been specified, the file being scanned will be sent.
When data collection fails | This option defines the behavior of the antivirus module when certain events occur. It is possible to Block traffic when information retrieval fails, or Pass without analyzing.