File upload to a web server prevented when uploading directly from a network share or mapped network drive.

Products

• Data Loss Prevention Endpoint Prevent

Issue/Introduction

When moving large files from a network share to a webserver via a web browser, the process is slow and often times out and does not allow the upload at all. 

Cause

When a block occurs the original file is removed, thus enabling data destruction risk. to counteract this a copy of the file is made to so that the original file can be restored to it's original location. 
This is a kernel level process and when the originating file resides on a network share, the process can be very slow. 

 

Resolution

Consider downloading the file locally first, then uploading the file to the intended web destination.