Hi Erez
is there any chance you can compare the file in your toolkit to the hash I provided? or provide me with a link to the toolkit?
Unfortunately as the server, indeed this site, doesn't have any Mellanox equipment in it I still don't know why this file as appeared on one of the servers. If it only serves to access hardware registers it seems completely unneeded.
Can this file be bundled with other products legitimately? How many versions of the mst.sys file are there? I want to continue investigating the issue as it's so completely out of place on the site and hasn't been knowingly installed which is of serious concern.