usually arrives on your PC as an installer for a free game or as an installer for a legitimate application that has been bundled by a third party.
For example, the following installer for Adobe Flash Player is not distributed by the company Adobe, but by a third party:
Some free-game websites are also known to distribute SoftwareBundler:Win32/Cakeport:
bundles and installs applications that we detect as adware, including Adware:Win32/WebCake.
Analysis by Geoff McDonald
has more information about the system changes that may be caused by this software bundler.