For the svchosts.exe "bug" there are some free downloadable removal tools found at the Uniblue Process Library seen at
http://www.liutilities.com/products/...rary/svchosts/ This is also a free online scanner there as well as at Trend Micro's House Call found at
http://housecall.trendmicro.com/
Symantec despite the folly of their Norton softwares does offer a free removal tool for the variants of the Vundo trojan found at
http://www.majorgeeks.com/download4430.html
For direct removal of the "qferojfq.dll" file discovered in the Windows\system32 folder simply boot the system up in safe mode for the manual removal when browsing directly to that sub folder. If you are still seeing problems later some additiional single purpose removers are available at Grisoft's own site.
http://www.grisoft.com/doc/34/us/crp/0
Once you these items removed run a pair of free tools and defrag your hard drive if the defrag analyzer to see what percentage of fragmentation is seen. One of the best freewares for cleaning up the system registry works on all versions of Windows.
http://www.majorgeeks.com/RegCleaner_d460.html
The other tool for cleaning up the hard drive and removing useless temp folders has a good nick name called "crap cleaner" otherwise known as CCleaner found at
http://www.ccleaner.com/