Unpack mpress 1.2xx

[zementmischer]

@axl936: Here's a link to an already patched version (proof-of-concept).
I did create my own RSA key pair, replaced the private key of the target with my own one and used my public key to make a valid license.
Btw. my first guess regarding DSA was a lil' bit wrong - the target actually uses an RSA cipher with 1024bit.

@RedBlkJck: I opted for the first method - splitting sections and rebuilding the PE image is a far more time consuming task than setting a hwbp at the section flags inside the PE header