What if I installed an .exe game with a trojan using wine on my Ubuntu? Would this allow the hackers to hack into my device just like what happens usually on Windows? What about the viruses that work behind the scenes in the background, backdoors, the trojans that store a file inside the registry, startup folder and I don't know what else -- will my Ubuntu be hacked just like what happens in Windows?
Extra question: Should I install anti-virus on my Ubuntu?