Replicator is a NKE for Mac OS X that enables you to remotely sniff/snoop on outbound TCP/IP traffic.
You can download it from the following link: https://packetstormsecurity.com/files/download/80621/replicator-0.1.tgz
Source: https://packetstormsecurity.com/files/80621/Replicator-NKE-Snooper-For-Mac-OS-X.html