I just used Onyx to clean out my caches and log files after which I did a reboot. Browsing the "All Messages" panel of the Console app I noticed this line:
10/27/13 3:38:03.000 PM kernel: 184.108.40.206
Since I did not recognize that IP I did a whois and to my surprise found out that it points to Eurolan Solutions in Romania.
So my question is why is my Mac 10.7.5 contacting Romania and how can I stop this from happening?