Basically I'm looking for an sv_pure mode, but one where I can specify the file it does the check on. There is a cloak feature in the game I play and unfortunately the developers never got around to making it so the file couldn't be modified, so someone with a bit of know how could circumvent that cloak by changing the .vmt file from Refract to UnlitGeneric type and gain a big advantage against that character in game. The plugin I'm looking for can't just check the file name or size, but the contents as well and if the contents do not match, it bans them or has some sort of notification.
I did a search through available plugins but couldn't find anything. I found a pure logger plugin but it doesn't quite achieve what I want.