Although Combofix could not determine if Atapi was infected it also failed to find an MD5 and company name so I feel it would be prudent to switch it

  1. Close any open browsers.
  2. Close/disable all anti virus and anti malware programs so they do not interfere with the running of ComboFix.
  3. Open notepad and copy/paste the text in the quotebox below into it:
FCopy:: c:\windows\ServicePackFiles\i386\atapi.sys|c:\windows\system32\drivers\atapi.sys
Save this as [b]CFScript.txt[/b], in the same location as ComboFix.exe

http://img.photobucket.com/albums/v666/sUBs/CFScriptB-4.gif

Refering to the picture above, drag CFScript into ComboFix.exeWhen finished, it shall produce a log for you at C:\ComboFix.txt which I will require in your next reply.