OS X V10.6 Snow Leopard :: Malware Checker/remover By Etresoft?

Was just wondering if anyone else had tried the Malware checker by etresoft? It is posted here:[URL]..What kind of experience did you have? 

I posted this: I downloaded and now have run your malware checker, and it asks me if I want to Delete or Keep a file:: 

Delete file 'com.apple.CSConfigDotMacCert-mynamehere(AT symbol here)me.comSharedServices.Agent.plist' that runs program '/System/Library/Frameworks/CoreServices.framework/Versions/A/Support/CSConfigD otMacCert'? 

The first time I ran the checker and just chose Keep.  It then asked a similar question and I chose Keep again.  Then it checked programs, etc.  I rebooted and ran it again, and go the same message.  This time, I just did not answer and the script time ran out. 

What does this mean?  Do I have malware??[URL]...Has anyone else used this Malware checker/remover??

Info:
mac mini, Mac OS X (10.6.8), 2.66 GHz, 8 GB, 500 GB