1. Please download aswMBR hxxp://public.avast.com/~gmerek/aswMBR.exe to your desktop. (replace the hxxp with http) Double click the aswMBR.exe icon to run it it will ask to download extra definitions - ALLOW IT / Yes Click the Scan button to start the scan On completion of the scan, click the save log button, save it to your desktop and Please attach the log in the post back, Don't have the program fix anything.
2. Please scan with ESET next
I'd like us to scan your machine with ESET OnlineScan
Hold down Control and click on the following link to open ESET OnlineScan in a new window. ESET OnlineScan
Click the button.
For alternate browsers only: (Microsoft Internet Explorer users can skip these steps)
Click on to download the ESET Smart Installer. Save it to your desktop.
Double click on the icon on your desktop.
Check
Click the button.
Accept any security warnings from your browser.
Under scan settings, check and DON'T (NO) check Remove found threats
Click Advanced settings and select the following:
Scan potentially unwanted applications
Scan for potentially unsafe applications
Enable Anti-Stealth technology
ESET will then download updates for itself, install itself, and begin scanning your computer. Please be patient as this can take some time.
Copy and paste the resulting log in your next reply
If you think a log should have been generated then go to C:\Program Files\ESET\ESET Online Scanner\log.txt to find it.
Ensure that Combofix is saved directly to the Desktop <--- Very important
Disable all security programs as they will have a negative effect on Combofix,
Close any open browsers and any other programs you might have running
Doiwnload the attached CFscript.txt, Now drag the CFScript.txt into the ComboFix.exe
If you are using windows XP It might display a pop up saying that "Recovery console is not installed, do you want to install?" Please select yes & let it download the files it needs to do this. Once the recovery console is installed Combofix will then offer to scan for malware. Select continue or yes.
When finished, it will produce a report for you. Please post the "C:\ComboFix.txt" for further review
****Note: Do not mouseclick combofix's window while it's running. That may cause it to stall or freeze****
Note: ComboFix may reset a number of Internet Explorer's settings, including making it the default browser. Note: Combofix prevents autorun of ALL CDs, floppies and USB devices to assist with malware removal & increase security.
*EXTRA NOTES*
If Combofix detects any Rootkit/Bootkit activity on your system it will give a warning and prompt for a reboot, you must allow it to do so.
If Combofix reboot's due to a rootkit, the screen may stay black for several minutes on reboot, this is normal
If after running Combofix you receive any type of warning message about registry key's being listed for deletion when trying to open certain items, reboot the system and this will fix the issue (Those items will not be deleted)
This script will take a bit of time, I suggest completely uninstalling Firefox and Google Chrome, that includes deleteing all the data when it asks in the mean time.
Start OTL, under Copy and paste the custom script attached which you open in for instance Notepad,(include the : at the start of :OTL and all the way to the end / bottom) and run the script. (Red Run Fix Button)
The output log, should be placed in the _OTL folder after.
Hopefully after that everything is good, so that would mean the infection is gone, the boot problem is fixed and the system cleaned meaning that it has all been solved.
button.
to download the ESET Smart Installer. Save it to your desktop.
icon on your desktop.
button.
and DON'T (NO) check Remove found threats 
Copy and paste the custom script attached which you open in for instance Notepad,(include the : at the start of :OTL and all the way to the end / bottom) and run the script. (Red Run Fix Button)