Downloader-BCF is a Trojan that, upon execution, attempts to download files from [removed], stores them under the %Windir% folder and executes them.

The downloaded file is either a file named "retadpu.exe" (which is an other variant of the Downloader-BCF trojan), either a file for which detection is covered under "Matcash" family.

More information can be found at this McAfee page.