Just tried disabling them with the same result.
The only other thing I've notice is in netstat with the address it's sending connections from when someone attempts to connect.
netstat -atunp | grep Project
tcp 0 0 10.13.0.5:55174 0.0.0.0:* LISTEN 3063/./ProjectZombo
tcp 0 1 10.13.0.5:54385 192.168.0.10:52870 SYN_SENT 3063/./ProjectZombo
tcp 0 1 10.13.0.5:49918 192.168.56.1:52871 SYN_SENT 3063/./ProjectZombo
tcp6 0 0 :::27015 :::* LISTEN 3063/./ProjectZombo
udp 0 0 10.13.0.5:51419 0.0.0.0:* 3063/./ProjectZombo
udp 0 0 10.13.0.5:55068 0.0.0.0:* 3063/./ProjectZombo
udp 0 0 0.0.0.0:16261 0.0.0.0:* 3063/./ProjectZombo
udp 0 0 10.13.0.5:51188 0.0.0.0:* 3063/./ProjectZombo
udp 0 0 0.0.0.0:8766 0.0.0.0:* 3063/./ProjectZombo
Does it create some kind of tunnel? I know I don't have any interface up with an IP of 10.13.0.5 and since it's a non-routable address that's the only thing I can think of.