Ever hear of StealthEye?
UDP Piggyback on the TCP subchanel? Each pack has a header and footer 8-bit encrypted bytecode to signal that it is beginning and ending and the contents of the packet.
In that encrypted header is a checksum (also encrypted) to verify that the packet is complete and the contents of the next in line packet.
That's where StealthEye resides. It's a 16k server that sits "SOMEWHERE" on your computer and 'phones home' to wherever I tell it to. You can change your IP address, close all your ports and put whatever firewall up you want, but you can't stop transmissions going OUT.
StealthEye was a prototype program I developed for the 'buddies' in 1994. I don't know what it's called now and I don't WANT to know. But I do know that they have developed it to the point of hiding it in a video clip and SWF files, among other tranport channels, which are downloaded (while viewing) to the C:\tmp directory. From there (as I designed it) it 'spawns' to another directory (I hid mine in the bios).
And the last I heard, there was a new project to develop a spinoff that travels on the 1B4, phasing control only subchannel according to the CCITT Rec. H.32.
Just some neat little toys the 'boys' are working on
