Over here, that is, in Asia, or Malaysia for that matter, we call it a pirated copy, after pirates (duh!). It's obvious why pirated copies of software thrive here - we're not as developed as Western countries, and so people cannot afford original copy prices like they can. While pirated software is lesser in Western countries because they can afford it in their currency, or download it from Warez sites with their connected computers, here if we have connections, it may not be fast enough too.
With the recent petrol hike fueled (pun not intended) by global oil prices going up, the piracy that was slowly being stamped away seems unlikely to go away anytime soon. Hence this comic: