First thing i notice is you have 2 antiviruses installed. Get rid of AVG. Secondly, do you recognize this - 'MailMonitor' as a legit program?. If not, get rid of it also.
You are infected with a trojan and probably a Worm also. Please do the following.
Download Ewido
http://www.ewido.net/en/download/ then set it up this way
http://rstones12.geekstogo.com/ewidosetup.htm You will need this later in safe mode
Make sure to update this program.
Next, download, install and update 'A-squared' here
http://www.emsisoft.com/en/software/free/
Download, install and update this excellent freebie- Superantispyware here
http://www.superantispyware.com/download.html
Download ATF-Cleaner to your desktop from this link
http://www.atribune.org/content/view/19/2/ You will need it later in safe mode.
Reboot your computer in Safe Mode by doing the following.
After hearing your computer beep once during startup, but before the Windows icon appears, tap the F8 key continually;
Instead of Windows loading as normal, a menu with options should appear;
Select the first option, to run Windows in Safe Mode, then press "Enter".
Choose your usual account.
Very Important:
Make sure all security programs- Norton, Norton ScriptBlocking, Ewido, Windows Defender, etc are DISABLED until they are needed. They will interfere with the cleaning process.
From safemode, begin running your scans in this order.
Ewido
A-squared
Superantispyware
Run ATF-Cleaner from safe mode.Double-click ATF-Cleaner.exe to run the program.
Under Main choose: Select All
Click the Empty Selected button.
Reboot into normal windows, run ATF cleaner again, empty the recycle bin and post a fresh 'HJT' log.