How do Pc and Pc2.2 differ in the context of DanderSpritz trojan generation?

Pc and Pc2.2 correspond to different versions of the PeddleCheap communication module. According to their `Version.xml` files, Pc2.2 is PeddleCheap 2.2.0.2 while Pc is PeddleCheap 2.3.0, a higher version. Using the older Pc2.2 may generate trojans that fail to connect back, as observed during testing. For reliable callback, it is recommended to use the Pc module, as detailed in the NSA DanderSpiritz Testing Guide.