It's the perfect storm.
Software piracy has been an issue for about as long as there has been software to pirate. Companies are constantly developing new Digital Rights Management (DRM) solutions to protect their products, while software pirates, known as crackers, are constantly finding new ways to bypass these technologies. However, FlightSimLabs (FSLabs) recently thought of a new DRM strategy: place malware within their installer.
Phishing scams, link bait, hacked software, hacks for software, keygens, screensavers, games, codecs, media files… the list goes on and on. Search for anything online you might wish to download, and odds are extremely good that you will find the majority of the links on the first page of your search results will go to downloads that are for anything other than what you really want to download.