Well, now you have an A:B infection :(.
Let's continue on with the fix...
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Download CWShredder 2 from here. Run it and press the *fix,* not scan and allow it to clean the infection. Close all browser and explorer windows before hitting the fix button.
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Download, unzip to your desktop About:Buster and run it, then:
1. Click "Update".
2. Click "Check For Update"
(If no new version is available, skip to step #4.)
3. Click "Download Update", and wait for it to be installed.
4. Click "Start".
(Wait for the initial ADS scan to complete.)
5. Click "Yes", to shutdown any IE session currently open.
(Wait for the about:blank scan to complete.)
6. Click "Ok", to scan once more.
7. Click "Yes", to shutdown any IE sessions currently open.
8. Click "Yes", to begin the second pass.
9. Click "Save log", and post this log back along with your new log.
10. Click "Exit".
11. Click "Exit".
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Run HiJackThis and click "Scan", then check(tick) the following, if present:
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = res://C:\WINDOWS\ihutl.dll/sp.html#27063
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = res://C:\WINDOWS\system32\ywssx.dll/sp.html#27063
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page = C:\WINDOWS\about.htm
O2 - BHO: (no name) - {1C044AAD-7955-4cbd-8175-501A165C4E5D} - C:\WINDOWS\System32\req.dat
O4 - HKLM\..\Run: [AlcxMonitor] ALCXMNTR.EXE
O4 - HKCU\..\Run: [\IEService.exe] C:\DOCUME~1\ALLUSE~1\APPLIC~1\IESERV~1\IEService.exe
O4 - HKCU\..\Run: [\Pribi.exe] C:\DOCUME~1\ALLUSE~1\APPLIC~1\Pribi\Pribi.exe
Now, with all windows closed except HiJackThis, click "Fix checked".
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Locate and delete the following item(s), if present. Make sure your able to view system and hidden files/ folders:
files...
C:\WINDOWS\ihutl.dll
C:\WINDOWS\system32\ywssx.dll
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Note that some of these file(s) may or may not be present. If present, and cannot be deleted because they're 'in use', try deleting them from " Safe Mode ".
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Post back a new log after rebooting and let me know how everything goes.