An Analysis of the Cross-Platform Backdoor NetWeirdRC
A backdoor called OSX/NetWeirdRC has been found that affects OS X (versions 10.6 and higher), Windows, Linux and Solaris. Much like OSX/Crisis, this is a commercial remote access tool that was leaked to Virus Total. This malware appears to be in the wild, but the risk is considered low at this time. It is not known how [...]
http://www.intego.com/mac-security-blog/an-analysis-of-the-cross-platform-backdoor-netweirdrc/