File Type Verification

What is File Type Verification?

A file type is usually represented by its file extension and associated application(s). Each file type has one or more corresponding file extensions. The file extension is appended to the end of each file name which provides a simple way for both operating system and users to identify the file type of each file.

Unfortunately, to bypass security mechanisms a file extension can be changed easily to spoof the operating system and users without modifying the content or changing the capability of the file. Our file type verification function offers an advanced mechanism to validate a given file type by analyzing the file's structure and content. With this technology, users can verify the true file type for given files and minimize the risk of file type spoofing.

Process Files based on their True Type

With MetaDefender's file type verification technology, you can process files based on their true file type. This means that you can take more precautions with risky file types like EXE and DLL files — like setting different policies or workflow rules based on file type. 

A spoofed file usually indicates malicious intent, so to mitigate this risk, MetaDefender can block files with incorrect extensions, For example, MetaDefender can preventing EXE or DLL files trying to pose as TXT files from entering your organization.

MetaDefender can verify more than 4,500 different file types.