It has now been widely reported that Apple’s latest operating system, Snow Leopard contains the ability to identify two families of Mac malware–OSX/Puper and OSX/IWService–when the infectious DMG files are downloaded and mounted as part of the infection process.

There are a number of ramifications of such a move that could be discussed, but the intention of this post is to call out the possibility of this being a catalyst for more Mac malware to be created.

As previous noted on our blog, the growth rate of malware (notably PC malware) is partly due to the success of defenses; the bad guys react and pump out more and more malware in an effort to circumvent those defenses. Apple’s inclusion of malware identification into the OS could certainly be a catalyst for a more intense game of cat and mouse with virus authors, an ironic scenario should this come about.