The Good and the Bad
"They consist mainly of persistence mechanisms and simple instructions despite their different forms (...known software with open source code that can be backdoored...)."
One of the good things about open source is that more eyes on the code can improve it in many ways. Unfortunately, black hats have eyes too. While I do not like security through obscurity, complacency is the bane of open source. I'm curoius what the implementation was here. Perhaps adding the backdoors and just posting compiled code for download?