Note that many websites have their own advertising, unrelated to adware.
This is installed via P2P programs. It's suppose to speed up searches - but you are directed to a portal, not of your choice.
UCmore is an Internet Explorer toolbar. When shown, it displays links to other sites it deems connected to the current page
Remove the folder
The Add/Remove Programs option works reasonably well but leaves behind an empty 'UCmore' folder in Program Files, and keys HKEY_CLASSES_ROOT\53CBEE82-D747-11D3-9ED0-005004189684 and HKEY_LOCAL_MACHINE\UCmore in the registry.