GPCODE Virus Decryptor Technique

Hi,
Does anyone knows the way to decrypt the GPCODE encrypted files.
Getting deleted files from recovery software is one option but is there any way to decrypt those file.

Tarun Kalla

---------------------------------------------------------------------------
This list is sponsored by: Black Hat

Attend Black Hat USA, July 28-August 2 in Las Vegas, the world's premier 
technical event for ICT security experts. Featuring 30 hands-on training 
courses and 90 Briefings presentations with lots of new content and new 
tools.  Network with 4,000 delegates from 70 nations.  Visit product 
displays by 30 top sponsors in a relaxed setting.  

http://www.blackhat.com
---------------------------------------------------------------------------