5 of 23Image
FinSpy demonstrates how the 'target' can be having a Skype conversation, but allows its headquarters full access to the target's system. This includes the video camera if one is available, any chat messages that are sent and received.
Truecrypt, the popular open-source encryption software, is also used in this video.
The software has keylogger capabilities. This allows the 'agent' to see the password that is being entered to encrypt the files, and file access gives the 'agent' access to the encrypted volume.
This then gives the headquarters access to any encrypted files the 'target' has.