Ok. I hate to be a party pooper but the only way I have ever kiled this monster and had it not come back was to do the following. It is general and it gets rid of most difficult yuckware. Forget about the normal antispyware software. That is like trying to fight a fire breathing dragon with a BB gun.
Here is what I Did:
You need two computers to do it.
Below is actually a quote from my blog
This computer had:
Winfixer
IST bar
180 Solutions
Winfixer has been the hardest thing to get rid of since Aurora. When I saw this, I didnt waste my time trying to kill it with traditional anti spyware software (which is lacking much these days). Here is what I did:
I ran Hijack this just to determine what all was on there. I let it kill what it could
I took the hard drive out of the laptop and placed it in another computer.
I went through the program files and deleted everything that was obvious malware.
Deleted temp files and temporary Internet files for every profile. Even on a new PC this was difficult as these files didnt want to die. I had to use safe mode to kill them. Btw, Killbox did not help here
I then ran AVG and ADaware (still on the other PC.). I had to tell them to scan the drive from the old PC. I let them remove all they could find.
Next I ran MWAVscan and deleted manually all the files it found to be infected.
Once it was all clean, I realized the registry was probably still full of crap so I returned the drive to the original system. Ran Hijack this, Adaware and AVG here. No infected files were found and Adaware cleaned up the registry for the most part.
Next I went through the registry and looked for any orphaned entries. I looked through the software hive and deleted any entries for known yuckware companies and also cleaned up the startup. If you want more detail as to what I did here, please ask and I will email you. I dont want to post it because I dont want some idiot to try it and really screw up their computer.
Last but not least, I updated Windows with the latest patches.
I now had a squeaky clean laptop with no signs of infection. I returned it to the customer and advised them to change their Internet habits.