Download ComboFix from Here or Here to your Desktop.
Close any open browsers and make sure you are disconnected from the net. Unplug the cable if need be before running combofix.
- IF you have not already done so Combofix will disconnect your machine from the Internet when it starts.
- If there is no internet connection when Combofix has completely finished then restart your computer to restore back the connections.
Double click on combofix.exe & follow the prompts.
When finished, it will produce a report for you.
Please post the "C:\ComboFix.txt" along with a new HijackThis log for further review
Note: Do not mouseclick combofix's window while it's running. That may cause it to stall or freeze.