A hungry Process called External.

I noticed this running on one of the machines at the office after I got a report of some super lag time. the Process in the task manager process list was named External and was eating about 80% cpu. I googled it and could not find any info. After I killed the process, the pc only needed 5% of the CPU.
Does anyone know what this is?

possibly W32.Mytob.EC@mm. check symantec for removal tools.

Thanks. I found an article on this guy"here"
I apprecaite the help.