Would have been more entertainig if he had broadcast his own UDP music. Perhaps the 8bits were some checksum to prevent such hackery?
Reverse engineering a mysterious UDP stream in my hotel (2016)
21–30 of 189 posts
Re: Reverse engineering a mysterious UDP stream in my hotel (2016)
#22Earlier quoted context omitted.
Eh, the sound system on the elevator being hooked up to the guest and entertainment network isn't really a sin in my eyes.
Until someone on the guest network starts broadcasting audio into the elevators
That's more of an annoyance than a safety issue though. This is definitely one of those YAGNI things where it's not worth worrying about until it becomes a recurring issue, which is highly unlikely.
Re: Reverse engineering a mysterious UDP stream in my hotel (2016)
#23SPOILER ALERT: did you play it reverse? I bet there is some hidden message…
"To win the game, you must kill me, John Romero!"
Re: Reverse engineering a mysterious UDP stream in my hotel (2016)
#24Re: Reverse engineering a mysterious UDP stream in my hotel (2016)
#25Earlier quoted context omitted.
Until someone on the guest network starts broadcasting audio into the elevators
That's more of an annoyance than a safety issue though. This is definitely one of those YAGNI things where it's not worth worrying about until it becomes a recurring issue, which is highly unlikely.
Personally, even the remotest possibility of someone broadcasting "evacuate your rooms, there is a fire/active shooter in the building" seems worth spending a few hours protecting against.
Re: Reverse engineering a mysterious UDP stream in my hotel (2016)
#26Earlier quoted context omitted.
Sounds possible, but you’ll have to deal with address contention. Play some good old Rammstein, to make your elevator journey more pleasant.
Or the sound of an elevator jamming…
This reminded me of an evil prank I did on some friends of mine when in university - CD burners had just become a thing, and at the local concert venue where we volunteered, a handful of burned CDs soon appeared at the mixing console with various music the engineers liked to listen to while getting ready for a gig.
Anyway, I ripped the discs, added a nice 50Hz hum under the music and burned new copies which I then left by the CD player.
Yup. Cue frustrated sound engineers trying to debug the ground loop which only manifested itself when the CD was playing.
I never dared admit to the prank, but rather swapped the hum CDs for the originals before someone got a chance to investigate this thoroughly...
Re: Reverse engineering a mysterious UDP stream in my hotel (2016)
#27> But what was this audio? Was this a sneakily placed bug that listened to me? [...] I can’t believe I spent time for this. It’s just elevator music.
Joke's on you, it's a bug listening to you in your room while using steganography to merely appear to be elevator music!
Re: Reverse engineering a mysterious UDP stream in my hotel (2016)
#28Re: Reverse engineering a mysterious UDP stream in my hotel (2016)
#29Earlier quoted context omitted.
Or the sound of an elevator jamming…
This reminded me of an evil prank I did on some friends of mine when in university - CD burners had just become a thing, and at the local concert venue where we volunteered, a handful of burned CDs soon appeared at the mixing console with various music the engineers liked to listen to while getting ready for a gig. Anyway, I ripped the discs, added a nice 50Hz hum under the music and burned new copies which I then le…
[flagged]
Re: Reverse engineering a mysterious UDP stream in my hotel (2016)
#30Earlier quoted context omitted.
That's more of an annoyance than a safety issue though. This is definitely one of those YAGNI things where it's not worth worrying about until it becomes a recurring issue, which is highly unlikely.
Personally, even the remotest possibility of someone broadcasting "evacuate your rooms, there is a fire/active shooter in the building" seems worth spending a few hours protecting against.
....why? No, honestly, why? Would you protect against someone running down the corridor shouting the same thing?