Filter
Top Products
App Control Use Cases
694
SonicOS 5.8.1 Administrator Guide
Blocking Outbound UTF-8 / UTF-16 Encoded Files
Native Unicode UTF-8 and UTF-16 support by Application Control allows encoded multi-byte
characters, such as Chinese or Japanese characters, to be entered as match object content
keywords using the alphanumeric input type. Application Control supports keyword matching of
UTF-8 encoded content typically found in Web pages and email applications, and UTF-16
encoded content typically found in Windows OS / Microsoft Office based documents.
Blocking outbound file transfers of proprietary Unicode files over FTP is handled in the same
way as blocking other confidential file transfers. First, create a match object that matches on
UTF-8 or UTF-16 encoded keywords in files. Next, create a policy that references the match
object and blocks transfer of matching files.
The example shown below uses a match object type of File Content with a UTF-16 encoded
Chinese keyword that translates as “confidential document.”