NED
NuKE Encryption Device
NED, the first polymorphic generator from USA, appeared at
approximately the same time as TPE. According to the generator's
documentation, it was released in October, 1992. Nowhere Man is
credited as being the author of this generator, but there have
been suspicions that it is actually written by some other
programmer. Nowhere Man is the author of NuKE's Virus Creation
Laboratory, the VCL.
Additional Details
Unlike most other polymorphic generators, NED was distributed as
source code. This, of course, makes it easier for other virus
creators to modify the generator, but so far only a single
version of NED has been found. The generator's documentation
expressly forbids its distribution outside NuKE itself, but it
has obviously been in wide distribution.
NED version 0.90B takes up 1355 bytes. It is known to have been
linked to two different viruses.