I decompiled the compiled binary from the first post.
As for as I can tell, acm.jar is a library, right? It seems to match the acm library found online, so it's safe to assume that it's safe.
The actual .jar of the program looks like this:
There's an interesting class in there called CallHome. It connects to 144.76.12.35:14462. Interestingly enough, that IP or port doesn't respond to a browser request. Inside the class, however, all that happens is that the program sends in what graphics card you're running - for statistics I assume. It would be a good idea to ask the user whether or not they agree to this.
The class EasyLTC handles the ui, including the prompts when you launch the program. It also handles starting the "Helper". There is no network communication here, so it is safe.
GPUConfig has a huge if/else branch (oh man it's huge you don't even want to know) that checks what GPU the user is running. It configures proper parameters. There is no reference to usernames or passwords and no network communication. The class is safe.
Helper deals with communication to the miner itself. It saves your parameters including username and passwords to litecoin.conf (and some to reaper.conf for obvious reasons). No network communication. It's safe.
RunStuff() looks interesting. Looks like there's a feature in the works that will show you how much you'll earn per day. Good stuff.
So, other than that initial CallHome() class, there's no network communication from the program itself, unless there's something really devious that I totally missed. I don't think there is. The program is safe to use!
...do I qualify for that prize?
LYNJL4jpLj7r1ZZUyPh1U78DRsc7tfcBBH
Edit:aw man I don't have 1000+ posts. Whoops
I lurk a lot though I swearrrrrr