Help my "mh" directory is coping into itself, over and over!

[jaque]

This morning I can in to work to find my quid box down, after some investigation into it I discovered that my "/usr" partition is 100% full. So I went to see what was filling up my hard drive, only to find out the my entire "/usr/bin" directory is being copied to the "/usr/bin/mh" directory over and over again! right now I have a direcotry like "/usr/bin/mh/mh/mh/mh/mh/mh/mh/mh/mh/mh/mh/mh/mh/mh/mh/mh/mh" give or take a few.
Does anyone know what may be causing this....A VIRUS??? If anyone has any idea on how this may be happening please let me know.

[DMR]

Have you checked your running processes to see if you can spot the culprit?

[bdg1983]

Guess it's a little too late in the day now.

Kill whatever process is doing it. Looks like someones gotten into your PC.