Mobogenie is a curse!
I bought a Lenovo A850i of Aliexpress about a year ago for my father who is a senior in 60s, it is a wonderful phone for the price, but this problem of apps installing by themselves is getting in my nerves!
I think the culprit app is in the stock rom!
I deleted nearly all of the apps months ago, even the stock phone app and had no luck solving this, I flashed the available stock rom and deleted the fake download.apk and the problem came back worse playing loud ads suddenly at the middle of the night.
I also think it is timeservice app, as there are 2 of them about 830 kb and another about 1.15 mb
I am also getting monkeytest and few others
I have noticed before in forums that there are people who defend mobogenie, I think they might be working for them, as this app is a real spam, it is enough that they are named as download.apk and keeps coming back after uninstalling. I wouldn't be surprised to see someone defending them after my post.
If anyone has a solution, please share it.