Please do the following ....
Download and Run ComboFix
Download a fresh copy of Combofix from here >>> ComboFix.exe
Custom CFScript
- Please open Notepad (Start -> Run -> type notepad in the Open field -> OK) and copy and paste the text present inside the code box below:
http://malwareremoval.com/forum/viewtopic.php?f=11&t=45214&p=466141#p466141
Suspect::
c:\windows\system32\drivers\cefo.sys
c:\windows\system32\drivers\dzttif.sys
File::
c:\windows\system32\drivers\cefo.sys
c:\windows\system32\drivers\dzttif.sys
Registry::
[HKLM\~\services\sharedaccess\parameters\firewallpolicy\standardprofile\AuthorizedApplications\List]
"c:\\Program Files\\uTorrent\\uTorrent.exe"=-
Driver::
nfaterc
qbjq
DDS::
mSearch Bar = hxxp://red.clientapps.yahoo.com/customi ... ch/ie.html
ADS::
- Save this as CFScript.txt and place it on your desktop.

- Referring to the screenshot above, drag CFScript.txt into ComboFix.exe.
- ComboFix will now run a scan on your system. It may reboot your system when it finishes. This is normal.
- **Note**
When CF finishes running, the ComboFix log will open along with a message box--do not be alarmed. With the above script, ComboFix will capture files to submit for analysis.- Ensure you are connected to the internet and click OK on the message box.
- Copy and paste the contents of the log in your next reply.
CAUTION: Do not mouse-click ComboFix's window while it is running. That may cause it to stall.
Note: the above code was created specifically for this user. If you are not this user, do NOT follow these directions as they could damage the workings of your system.