I decided to install Boot9Strap to my old 3DS running on 4.2 Sysnand (don't question me please). One thing I noticed that happened when installing Boot9Strap is a few extra icons pop up on my menu screen, I haven't had this issue occur on my other consoles, though those ran a much later firmware than this old console here. Here is a screenshot of the four titles that for whatever reason installed onto my console (mind you I didn't have any file manager/CIA installer, so I couldn't install these myself).
I decided to install Boot9Strap to my old 3DS running on 4.2 Sysnand (don't question me please). One thing I noticed that happened when installing Boot9Strap is a few extra icons pop up on my menu screen, I haven't had this issue occur on my other consoles, though those ran a much later firmware than this old console here. Here is a screenshot of the four titles that for whatever reason installed onto my console (mind you I didn't have any file manager/CIA installer, so I couldn't install these myself).