When I got home from traveling at around 3am last night, I found a box with 10 books on the table. Although, Virtual Honeypots covers primarily honeypots, it also features a small section on SpyBye that is part of a larger chapter on client honeypots. Other topics that we cover relating to this are on analyzing malware and tracking botnets. I am very pleased with the book in general and it will be interesting to see how it is going to do over the next few months.
The SpyBye source code is now available via http://code.google.com/p/spybye/. You can access it with subversion and more importantly, you can also send patches for feature improvements. In addition to that, the code hosting supports bug tracking and other nifty features. Enjoy!