The famous zombie researcher “Donn Beach” almost created an immunization against the dipsomanie virus. This severe disease leads to the inability to defend against Zombies, later causes a complete loss of memory and finally turns you into one of them. Inexplicably Donn forgot where he put the license key for his centrifuge. Provide him a new one and humanity will owe you a debt of gratitude for fighting one of the most wicked illnesses today.

http://dl.ctftime.org/38/129/donn_beach.exe
ctf.fluxfingers.net tcp/2055