What Does the Ctfmon.exe File Do? Ctfmon.exe monitors the active windows and provides text input service support for speech recognition, handwriting recognition, keyboard, translation, and other alternative user input technologies.

http://support.microsoft.com/kb/282599

msctf.dll is a module which belongs to the Microsoft Text Service Module.

http://www.processlibrary.com/directory/files/msctf/

Considering the DLL is a text service module and the EXE monitors active windows and provides text input service support, the behaviour doesn’t sound particularly suspicious.