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US 2015/0319138 A1Published application
Filtering hidden data embedded in media files
AssigneeFortinet, Inc.
InventorsGuoyi Yan, Juneng Zheng
Life of this patent
Estimating the term…
Abstract
Systems and methods for filtering unsafe content at a network security appliance are provided. According to one embodiment, a network security appliance captures network traffic and extracts a media file from the network traffic. The network security appliance then determines the presence of a hidden data item embedded in the media file in a machine-readable form. When such a hidden data item is identified, the network security appliance performs one or more actions on the media file based on a predefined security policy.
Claims22
A method comprising:
- capturing, by a network security appliance, network traffic;
- extracting, by the network security appliance, a media file from the network traffic;
- determining, by the network security appliance, presence of a hidden data item embedded in the media file in a machine-readable form;
- when said determining is affirmative, then performing, by the network security appliance, one or more actions on the media file based on a predefined security policy.
1 more element
A network security appliance comprising:
- a non-transitory storage device having tangibly embodied therein instructions representing a security application;
- and
- one or more processors coupled to the non-transitory storage device and operable to execute the security application to perform a method comprising:
- capturing network traffic;
- extracting a media file from the network traffic;
- determining presence of a hidden data item embedded in the media file in a machine-readable form;
- when said determining is affirmative, then performing one or more actions on the media file based on a predefined security policy.
4 more elements
Dependencies are inferred from the claim text.