Cannot remove whatever malware/rootkit i've got

I tried to do this by myself and by reading several other threads in these forums but cannot get rid of whatever it is that has infected my computer.  I’ll give a little bit of background on what has been removed and where I stand now.  When I first noticed the problem a few days ago Norton Internet Security (ver 15.5.0.23) started by finding and removing a virus called “Suspicious.skintrim.”  After that NIS was able to detect and remove “trojan.metajuan” and “downloader.”  I was still having weird pop-ups, strange pages shwoing up in firefox, etc and found my way to this site.  I was able to download some of the software recommended here in other threads.  I have run malwarebytes anti-malware probably a dozen times and it keeps finding new things.  At first it was “a.exe”, “b.exe” then it became variants of “UAC___.dll”  I found a suggestion to run Sophos’ anti-root kit program and it seemed to find and remove a lot of files associated with UAC and “kbiwkm________”.  Since then I have not seen any weird issues with my computer, but when I run scans with MBAM it still finds new files (rootkit.tdss is the current problem) and registry keys.  NIS does not find anything.  Spohos does not find anything meaningful.  I’m not sure what I can do next to get rid of remaining malware and make sure there isn’t something still there that will cause a problem.  I have uploaded a current log from HijackThis and the latest log from MBAM.  If anyone has advice on how to complete the cleanup I would appreciate it.  Thanks.