Removing Malscript and JS.Alescurf on a Mac

Hello!

 

My web site files have been infected with Trojan.Malscript!JS and JS.Alescurf, which only infect PCs. I need to scrub these files, but I have a Mac, and Norton AntiVirus for Mac will only quarantine the files -- it can't repair them. The viruses are supposed to be easy to repair on a PC, but how do I do it on a Mac? (OS 10.5.8)

 

Any help would be appreciated. Thanks!

 

Ted