The third in the series of the “DEF” Viruses is the CDEF Virus. It is similar in concept to the previous WDEF and MDEF Viruses in that it replaces the Standard Control DEFinition with its own code. However it is a separate virus which shares no other similarities with the previous two.
At the current time this virus doesn’t seem to cause any problems, have any symptoms, or perform any actions other than replicating.