Complete Guide to Keylogging in Linux: Part 2

In Complete Guide to Keylogging in Linux: Part 1, we covered how a keylogger can be written for Linux, by reading events directly from keyboard device. Today, we will cover slightly different technique for keyboard event capture.  Linux GUI Stack

 Unlike other OSes like Windows, GUI is not part of Linux OS itself. Instead, this is managed by a stack of different application, libraries and protocols. A generic stack looks something similar to this:

    +—————+                                      +————–+     |   Display:2   |<–=—+                    +—-=—>|   WxWidget   |—–+     +—————+       |                    |         +————–+     |                             |                    |                              |     +—————+       |                    |         +————–+     |     |   Display:1   |<–=—+                    +—-=—>|      Qt      |—–+     +—————+       |                    |         +————–+     |          

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