Security software is a band-aid on vulnerable software and users installing things they shouldn't. Part of the OSX security strategy is to minimize users insta

Security software is a band-aid on vulnerable software and users installing things they shouldn't. Part of the OSX security strategy is to minimize users installing things they shouldn't by making it difficult (enforced code signing, confirmations when opening an unsigned or new application). The other side is minimizing attack surface for exploits by staying up-to-date, not shipping crap like Java unless the user explicitly needs it, and (increasingly) sandboxing applications to user-approved subsets of the filesystem. Bolt-on detection and resolution of malware infections is just not a part of the OSX security ecosystem like it is with Windows. Little Snitch can help give you a picture of what's going on with regard to your network card, but at the end of the day malware can usually hide its traffic in an otherwise-trusted application to avoid that sort of detection.