Knock knock
Our mortal enemies at SheepHaters Inc. are finally about to meet their fate and you, my friend, are tasked with retrieving the secret that will allow us to put an end to their sheep-hating days.
Intelligence has uncovered that host .10 and .20 on their subnet are DNS servers and that pretty much all machines have telnet access enabled. Employees have their Windows laptops on host .150 through .254. Your real target, however, is the super secret service running on port 4669 on host .77!
Retrieving the secret will be a simple matter, but a weird MirrorWall firewall protects their network. Sheep haters, however, seem to know a way (a secret knock, if you wish) to tunnel through it and I have heard them talking about the super secret service.
I tried some things, but all I get is insults! Moreover, these insults seem to be sent to other people on my net! Very impolite on their part. Maybe you'll have better luck. The MirrorWall is accessible at IP 10.13.3.130.
Note: It is recommended that only one team member attempts to solve this challenge at a time.