I didn’t encounter the problem. Normally my anti-virus software tells me about stuff like this, too. However, the steam.dll in the archive (which is hosted on my dropbox) is part of the revemu version I used to create the non-steam version. Anyway, I personally don’t worry too much about warnings like this cause it doesn’t say that the exact same virus or trojan is actually somewhat included in the dll. It merely states that there are structures in the dll that resemble a certain trojan which shouldn’t come as a shock to you really as the dll is most-likely a hack in order to bypass some sort of security check. Go ahead and check some of those other cracks you have on your computers for viruses and trojans. I’m pretty sure something will come up as well.
Besides, when I started to learn C I also wrote programs (shitty little hello world programs) which got flagged as viruses or trojans when in fact it was just bad programming on my part. I mean, it’s up to you. If you don’t wanna risk it, delete the file. After all, I don’t know what these guys did in order to create the dll, but I personally don’t worry about it. I’ve used the steam emulator for over a year and never had any trouble with viruses or the likes.