Mac OS X, Mac OS X Server, Mac Security Mac OS X: Preferred Virus Software? November 29, 2007 I prefer ClamXav, easy-to-use, light, with a good detection rate, and detects Win and Mac OS X virus. Others: . avast . iAntiVirus (virus for Mac OS X only) . Intego X5 . Norton . Mcafee . Sophos . CA