Malwarebytes has updates to a new revision since last you used it
Inside Malwarebytes is an Update tab, which will allow you to check for updates (basically it will download and automatically install the new revision, then update normally)
Seeming it only took under half an hour to scan your computer, you may want to try it (although it may in fact not find anything anyway)
You have a "Host" file entry:
O1 - Hosts: 69.72.171.146 messenger.hotmail.com
listed in your HJT log, normally this is not required (ie tick and fix this in a new HJT scan) But you may have entered manually, or for some reason, so just letting you know.
Rescan with HJT and tick the boxes next to the following, then select fix all
O2 - BHO: (no name) - {5794FF2F-2507-4EF4-867A-01CF6D18967C} - C:\WINDOWS\system32\nnnnKbYo.dll (file missing)
O2 - BHO: (no name) - {725a9f41-39fa-456a-9022-c00422adb18d} - C:\WINDOWS\system32\ssqOETjg.dll (file missing)
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 9.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [netconfig] C:\WINDOWS\system32\netdata.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"
O9 - Extra button: Blog This - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: &Blog This in Windows Live Writer - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O20 - AppInit_DLLs: C:\PROGRA~1\Google\GOOGLE~1\GOEC62~1.DLL zvawxe.dll idwnya.dll wbdmqw.dll
O20 - Winlogon Notify: ddabfbcfade - C:\WINDOWS\system32\ddabfbcfade.dll (file missing)
Restart
Clear & Reset System Restore's Cache
Go to Start >> Run - type or copy/paste
control sysdm.cpl,,4 and then press Enter
* Tick on the checkbox - Turn off System Restore on all drives
* Click Apply
Turn it back 'On' by unticking the same checkbox & click Apply, and then OK
Then let me know how it seems to be running now