Peter (pk) is an avast! team member. He usually works with packed files into avast! (see, for example, this forum). The ‘ugly’ face of pk will appear there… ;D
Just send an email to him as ask so (kurtin@asw.cz). But, right now, you may wait untill he comes back from USA. A week I suppose.
See the buttons at the bottom of his photo… There are lots of ways to get in contact with him. :