how to remove "Generic Downloader X" Virus.

A guy in my office has a newer Windows XP Pro pc that was having alot of pop-ups urging him to buy an anti-virus solution.  His PC allready had an active subscription of Sonic WALL Enforced Antivirus running on it.

I ran some anti virus scan and deleted all the files that I could.  I could not deleted the following file however "ocicx.dll" which was located in Windows/System32.

How do I get rid of this anoying virus?  
Gary GordonSolution IntegratorAsked:
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phototropicConnect With a Mentor Commented:
The file is related to Zlob Trojan which installs the VirusResponse Lab 2009 rogue anti-spyware program :

I would recommend scanning with Malwarebytes' Antimalware:

Download the trial version, update it fully, then click on "Perform a quick scan".  Show results then click on "remove selected". Post the log here.

I would also run Smitfraudfix:

Run option 2 in safe mode.  Post the log.

If you still have problems after that, download and run SDFix:

It would also be a good idea to reset your hosts file:

Good luck!!!
Gary GordonSolution IntegratorAuthor Commented:
Correction,  the name of the infected file was "obicx.dll".
Gary GordonSolution IntegratorAuthor Commented:
Wow -  the Anti Mal Ware and the Smit Fraud Fix were very effective.
Gary GordonSolution IntegratorAuthor Commented:
Glad you got it sorted.

Thanks for the points and grade...
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