See if you can find the exact name of the malware in question... then google it. Usually there is a specific patch available to 'cure it'. Sometimes one needs to run two different malware programs to catch all the 'stuff' out there.
Along with running Kaspersky and Nod32 (the latter is manually only--AV/malware programs tend to not mix well...need to shut one down before starting the other); I have my IT guy come by once a year and wipe/rebuild the entire software on my workstation. Takes around 3-4 hours to get all the apps and routines set up again on a fresh Windows install... and costs me around a C note... however it also rids me of 'build-up'. This time I will leave WinXP pro and go to Win7Pro64. Hardware will handle 64bit... I have some new photo-processing software that does not run on XP... and M$FT is not gonna support XP much longer.
Try the google approach.
You could also try CCcleaner... it is a registry tool... WARNING... one can delete most of the cookies and DLL's if they are not careful... and take hours to get all your apps and routines working again.
One last thing, you might want to check your router out if you keep getting this sorta infection back. I have seen viruss that will login to the router and set it up the DNS so everything goes through say Russa. This can also be done on your computer through the dns and proxy settings.
Weird, I always thought svchost.exe was a normal windows program. I use Malwarebytes Pro, it actively does malicious website blocking and file system protection, so for all has been well. I would also try booting in "F8" safe mode and run Malwarebytes, might be better.
"The critic is a prisoner to his own experiences and perspectives, erroneously believing his limited experiences are the sum of all truth". T.D. Jakes
Regular Malwarebytes doesn't touch it. What is the MB anti-root tool thingie? Might it get what the regular one doesn't? I'll sure try Bill's suggestion of running it in safe mode.
My IT friend who suggested combofix did say getting it from bleeping computer.
This is at work with a crazy network and a crazy IT lady who keeps finding ways to blame me for it like using Firefox not IE, going on Facebook for 30 seconds to send a message to a customer or running Outlook with the preview pane open. I pointed out I do lots riskier things at home without a problem.