PCX2COM
From Just Solve the File Format Problem
PCX2COM is a DOS utility that converts a PCX image file to a COM file that, when executed, displays the image. It was developed by "Dr.Destiny" (contact: Pavel Kanzelsberger ml.).
It only supports images that are exactly 320x200 pixels, 256 colors.
Identification
The first 152 bytes of the generated COM file are probably always the same.
Some of these bytes are an obfuscated (XOR 0x80) text message. For example, the following bytes at offset 104 decode to "Self PCX Viewer, Dr.Destiny":
d3 e5 ec e6 a0 d0 c3 d8 a0 d6 e9 e5 f7 e5 f2 ac a0 c4 f2 ae c4 e5 f3 f4 e9 ee f9