You have a variant of the Smitfraud/SpySheriff/AntiVirusGold/SpyAxe/etc. family of infections, which require a special proceedure to remove:
You will want to print out or make a copy of these instructions before starting, because you will not be able to connect to the internet during most of this fix.
Please download smitRem.zip and save it to your desktop.
Right click on the file and extract it to its own folder on the desktop.
Please download, install, and update the free version of Ewido Security Suite :When installing, under "Additional Options" uncheck "Install background guard" and "Install scan via context menu".
When you run Ewido for the first time, you will get a warning "Database could not be found!". Click OK. We will fix this in a moment.
From the main Ewido screen, click on update in the left menu, then click the Start update button.
After the update finishes, the status bar at the bottom will display "Update successful"
Exit Ewido. DO NOT run a scan yet.
If you do not already have Ad-Aware SE 1.06 installed, follow these download and setup instructions. Also check for updates:
Ad-Aware SE Setup
Again, do NOT run a scan yet.
Next, please reboot your computer in Safe Mode by doing the following:Restart your computer
After hearing your computer beep once during startup, but before the Windows icon appears, press F8.
Instead of Windows loading as normal, a menu should appear
Select the first option, to run Windows in Safe Mode.
Now scan with HJT and place a checkmark next to each of the following items:
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R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = c:\secure32.html
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page = c:\secure32.html
R3 - Default URLSearchHook is missing
O3 - Toolbar: (no name) - {86227D9C-0EFE-4f8a-AA55-30386A3F5686} - (no file)
O4 - HKLM\..\Run: [Microsoft Office] C:\WINDOWS\system32\msoff.exe
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Open the smitRem folder, then double click the RunThis.bat file to start the tool. Follow the prompts on screen. Your desktop and icons will disappear and then reappear again --- this is normal.
Wait for the tool to complete and Disk Cleanup to finish --- this may take a while; please be patient.
Next, run Ad-aware and perform a full scan. Remove everything found.
Now open Ewido Security SuiteClick on Scanner
Click on Complete System Scan and the scan will begin.
NOTE: During some scans with ewido it is finding cases of false positives. You will need to step through the process of cleaning files one-by-one. If ewido detects a file you KNOW to be legitimate, select none as the action.
DO NOT select "Perform action on all infections"
When the scan is finished, click the Save report button at the bottom of the screen.
Save the report to your desktop
Close Ewido
Next go to Start -> Control Panel, click Display -> Desktop -> Customize Desktop -> Web -> Uncheck "Security Info" if present.
Restart your computer in normal mode.
Run Panda's online virus scan and perform a full system scan. Make sure the Autoclean box is checked!
Finally, restart your computer once more, and please post a new HijackThis log as well as the log from the Ewido scan and the log from the smitRem tool, which will be located at C:\smitfiles.txt.