The xby windows wallet apparently contains a virus.... I already use it for 1 month but yesterday my virusscanner found a virus in the map... Anyone else who had this? How can this happen because i downloaded it from the official site?
The XBY wallet doesn't contain the virus, it's the XFuel wallet that contains it. Those are two separate wallets; you only need the XBY wallet, not the Xfuel one, if you are only holding XBY.
I had the same virus scan when I tried to install Xfuel. From what I can remember, one of the mods explained that the file is the remains of the old wallet from back when it was an actual scam coin, and the current Xfuel wallet was build on the foundations of that original wallet which contained the trojan file. If I remember correctly, they know the file is there, it's not harmful, once the main-net is released they'll move onto getting rid off the virus file.
But I only hold XBY and no Xfuel, so I just decided not to install the Xfuel wallet and save me the worry.