Free firewall and network monitor Application like the LittleSnitch?
That would be the TCPblock.

Almost like Little snitch but no fancy UI.

TCPBlock is a lightweight and fast application firewall for Mac OS X 10.6 or later developed by delantis.com.
The Mac OS X firewall protects you from connections that come from outside of your computer. But what about the software from your computer that opens new connections to the internet? With TCPBlock you can prevent selected applications on your computer from opening connections to the network.