So, I downloaded the taiwanese version of DBO, made an account, etc etc. I am patching it now, and while patching it my anti-virus program told me there were multiple threats detected in the files found in the DBO folder (which was the winrar files found on this site). Do I have anything to worry about? Did anyone else get a virus warning from their version of the game?
Themida is used to encrypt the game making it harder for hackers to unpack it's core files and make private servers, hacks, bots, and etc. In this case it is safe. If you get it with a mainstream game from a company without bad reputation it is likely safe. If you get it from some random download it could be used to conceal viruses.
So in case the above made no sense, Themida is safe in this situation.