We'll need to look a little deeper.
Let's use a program to scan for any trojans that may exist. Download TDS-3
http://tds.diamondcs.com.au/index.php?page=download. Learn how to use it at
http://tds.diamondcs.com.au/index.php?page=easytouse. Make sure to update it after you installed it. You can get the manual updates at
http://tds.diamondcs.com.au/index.php?page=update. When you launch the program, it will scan your memory for running processes. This will take less than 30 seconds. Next go to 'System Testing' on the menu and choose 'Full System Scan'. After that's finished, post the log file by selecting everything on the top pane (select from bottom to top). If any alarms are found, it will be listed in the bottom window. Please copy and paste that here also if it applies. If you have problems copying the text, look (or search) for a file named scandump.txt and see if that has the alarms - post that here.