[AC Question]

So I had this issue last night, where the app called "drmserver" drained my fully charged battery overnight. Before I went to bed, I watched some video I had just downloaded on PC and moved it on my Xperia Z1. Could this have something to do with the drmserver? I know what it stands for since I googled it, but there's really little amount of information about what it is and what does it do, and most importantly what is causing it to activate. I'm guessing it was a glitch that it stayed on the whole night, 6h 47mins according to battery settings.

So yeah, I'd like to know what caused this and will it likely not happen ever again? I was lucky that I had a day off of work, since my alarm cant go off without any battery...