Look, the first example-pic wich Bunny Elmer took, was made in MY server.
The last two example-pics, Goldy made in BackSlash (Im not quite sure) Server, I was also in it. Now, I dont think Backslash cant do that memory value. He is just not smart enaugh to do it =P Me neighter, because I dont really exactly understand what do you want to mean Dizzy.
But let me explain the Virus a bit,

1. The virus can warp the victim to other places. Just out his self.
2. You can get a black screen, you only then can see the text in the server.
3. The virus changes the names in the F9-list.
4. It also effect the score limits.

So it might be just a program wich automatticly runs itsself when JJ2 starts. I still my self dont know how this program spreads itself. It maybe even doesnts do it. But those victims wich have it may got it from eachother/someone by some strange way.

Ok this is all what I heard from the 'victims'. My self, I dont have the virus.