based on your post you shouldnt use this computer until its clean or use it as little as possible. When not in use make sure it has no internet connectivity, if your not sure how to do this then power it off.
Please download TDSS Killer.exe
and save it to your desktop
Double click to launch the utility. After it initializes click the start scan button.
Once the scan completes you can click the continue button.
"The utility will automatically select an action (Cure or Delete) for known malcious objects. A suspicious object will be skipped by default."
"After clicking Next, the utility applies selected actions and outputs the result."
"A reboot might require after disinfection."
A report will be found in your Root drive Local Disk (C:) as TDSSKiller.220.127.116.11_02.01.2011_17.32.21_log.txt (name, version, date, time, log.txt)
Please post the log report