Please download ComboFix by sUBs from
HERE
or
HERE

• You must download it to and run it from
  your Desktop
• Physically disconnect from the internet.
• Now STOP all your monitoring programs
  (Antivirus/Antispyware, Guards and Shields) as they could easily interfere
  with ComboFix.
• Double click combofix.exe & follow the prompts.
• When finished, it will produce a log. Please save that
  log to post in your next reply along with a fresh HJT log
• Re-enable all the programs that were disabled during
  the running of ComboFix..

Note:
Do not mouse-click combofix's window while it is
running. That may cause it to stall.

CF disconnects your machine from the internet. The connection
is automatically restored before CF completes its run. If CF runs into
difficulty and terminates prematurely, the connection can be
manually restored by restarting your machine.

Run Combofix ONCE only!!