When Telstra Attacks

At the moment, every 3-5 seconds or so, my firewall is blocking a packet from telstra - namely placer2.lnk.telstra.net. The packets are aimed at port 5450, which according to sources is the port used by the windows trojan called Pizza. Now it could be that that machine name is just a masquerading link for the infected machine, but I feel it is more fun to believe that I still own 51% of an infected windows box.