Got this from sophos.com
Troj/Midaddle-C is a downloader Trojan for the Windows platform related to the MidAddle adware.
When executed Troj/Midaddle-C attempts to update MidAddle adware applications by downloading files from the following locations:
http://www.midaddle.com/config/update.xml
http://www.yellow-sticky.com/reload/clicks.dll
http://www.yellow-sticky.com/reload/clicksversion.txt
In order to be able to run automatically when Windows starts up Troj/Midaddle-C adds a new entry to the following registry key:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run \
with the path ot the current file.
Also Troj/Midaddle-C sets the registry entries:
HKCU\Software\Microsoft\Internet Explorer\Main\Updater
HKCU\Software\Microsoft\Internet Explorer\Main\Enable Browser Extensions
The adware software installed by Troj/Midaddle-C can typically be uninstalled via the Add or Remove Programs dialog in the Windows Control Panel (Start ->Settings -> Control Panel -> Add/Remove Programs) by selecting the 'midADdle' entry.
Hope that helps