Posts: 75
Threads: 5
Joined: Sep 2024
(Mar 23, 2025, 07:05 PM)TechArtificer Wrote: For those who want to actually "see" what's going on, I can recommend this site:
https://wokwi.com/
Create an Arduino Nano project, add a logic analyzer.
Connect GND pins and pin 10 of the Arduino with channel 0 of the logic analyzer.
Then select the code section, press F1 to open a menu, scroll down to "Upload Firmware and start simulation" and upload the compiled file.
You'll see that the data is being collected by the logic analyzer (this takes about 2min).
Once that is done, stop the simulation to download the output of the logic analyzer.
The file can then be visualized by e.g. PulseView.
Thank I have not heard or that site - I will have to try that out! Thank I appreciate it!
Posts: 87
Threads: 3
Joined: Nov 2023
(Mar 23, 2025, 07:05 PM)TechArtificer Wrote: For those who want to actually "see" what's going on, I can recommend this site:
https://wokwi.com/
Create an Arduino Nano project, add a logic analyzer.
Connect GND pins and pin 10 of the Arduino with channel 0 of the logic analyzer.
Then select the code section, press F1 to open a menu, scroll down to "Upload Firmware and start simulation" and upload the compiled file.
You'll see that the data is being collected by the logic analyzer (this takes about 2min).
Once that is done, stop the simulation to download the output of the logic analyzer.
The file can then be visualized by e.g. PulseView.
Seems pretty cool! Thanks!
Posts: 104
Threads: 4
Joined: Oct 2023
(Mar 23, 2025, 06:44 PM)noter Wrote: (Mar 23, 2025, 05:55 PM)StingEm Wrote: (Mar 23, 2025, 05:43 PM)noter Wrote: ANOISYBUZZER ... words do not repeat ... it is just going through main step by step. Okay so I have an error in my script or and error in the morse decoder -- Dang it! I need to figure out where I went wrong
(Mar 23, 2025, 05:43 PM)noter Wrote: ANOISYBUZZER ... words do not repeat ... it is just going through main step by step. Okay so I have an error in my script or and error in the morse decoder -- Dang it! I need to figure out where I went wrong
CyberChef = Best Morse Decoder
100 % agree with you
Posts: 70
Threads: 7
Joined: Jul 2024
(Mar 23, 2025, 12:43 PM)Steward Wrote: (Mar 23, 2025, 12:13 PM)therepairer Wrote: We just need to add the curly braces, HTB{...}, and also we need to add spaces between each word of the output.
So, all capital letters, with spaces between words.
Why dont we just parse main function and decode the flag from the main function that send tones?
this is the working code to reveal the morse from decompiled main function
def morse_from_file(file_name):
with open(file_name, 'r') as file:
lines = file.readlines()
morse_code = []
delay_count = 0
for line in lines:
line = line.strip()
if '600' in line:
morse_code.append('-')
delay_count = 0
elif '300' in line:
morse_code.append('.')
delay_count = 0
elif 'delay' in line:
delay_count += 1
if delay_count == 3:
morse_code.append(' ')
delay_count = 0
else:
delay_count = 0
return ''.join(morse_code)
if __name__ == '__main__':
file_name = 'main.c'
morse_result = morse_from_file(file_name)
print(morse_result)
The morse code is not valid , am I doing something wrong ?
uv run solve.py
........----........----..------..........--..------..........------....----........--..--..--..--------------..----..--............------..--..--....--------..
Posts: 43
Threads: 1
Joined: Oct 2023
(Mar 26, 2025, 06:45 PM)x1rx Wrote: (Mar 23, 2025, 12:43 PM)Steward Wrote: (Mar 23, 2025, 12:13 PM)therepairer Wrote: We just need to add the curly braces, HTB{...}, and also we need to add spaces between each word of the output.
So, all capital letters, with spaces between words.
Why dont we just parse main function and decode the flag from the main function that send tones?
this is the working code to reveal the morse from decompiled main function
def morse_from_file(file_name):
with open(file_name, 'r') as file:
lines = file.readlines()
morse_code = []
delay_count = 0
for line in lines:
line = line.strip()
if '600' in line:
morse_code.append('-')
delay_count = 0
elif '300' in line:
morse_code.append('.')
delay_count = 0
elif 'delay' in line:
delay_count += 1
if delay_count == 3:
morse_code.append(' ')
delay_count = 0
else:
delay_count = 0
return ''.join(morse_code)
if __name__ == '__main__':
file_name = 'main.c'
morse_result = morse_from_file(file_name)
print(morse_result)
The morse code is not valid , am I doing something wrong ?
uv run solve.py
........----........----..------..........--..------..........------....----........--..--..--..--------------..----..--............------..--..--....--------..
Hey! I think the problem is in the code you decompiled. what is decoded code you have?
Posts: 25
Threads: 5
Joined: Jan 2025
(Mar 26, 2025, 06:45 PM)x1rx Wrote: (Mar 23, 2025, 12:43 PM)Steward Wrote: (Mar 23, 2025, 12:13 PM)therepairer Wrote: We just need to add the curly braces, HTB{...}, and also we need to add spaces between each word of the output.
So, all capital letters, with spaces between words.
Why dont we just parse main function and decode the flag from the main function that send tones?
this is the working code to reveal the morse from decompiled main function
def morse_from_file(file_name):
with open(file_name, 'r') as file:
lines = file.readlines()
morse_code = []
delay_count = 0
for line in lines:
line = line.strip()
if '600' in line:
morse_code.append('-')
delay_count = 0
elif '300' in line:
morse_code.append('.')
delay_count = 0
elif 'delay' in line:
delay_count += 1
if delay_count == 3:
morse_code.append(' ')
delay_count = 0
else:
delay_count = 0
return ''.join(morse_code)
if __name__ == '__main__':
file_name = 'main.c'
morse_result = morse_from_file(file_name)
print(morse_result)
The morse code is not valid , am I doing something wrong ?
uv run solve.py
........----........----..------..........--..------..........------....----........--..--..--..--------------..----..--............------..--..--....--------..
.-
-. --- .. ... -.--
-... ..- --.. --.. . .-.
-.-. --- -- -- .- -. -.. ...
.- - - . -. - .. --- -.
Posts: 95
Threads: 14
Joined: Dec 2024
(Apr 05, 2025, 02:05 AM)fr34cker Wrote: (Mar 26, 2025, 06:45 PM)x1rx Wrote: (Mar 23, 2025, 12:43 PM)Steward Wrote: (Mar 23, 2025, 12:13 PM)therepairer Wrote: We just need to add the curly braces, HTB{...}, and also we need to add spaces between each word of the output.
So, all capital letters, with spaces between words.
Why dont we just parse main function and decode the flag from the main function that send tones?
this is the working code to reveal the morse from decompiled main function
def morse_from_file(file_name):
with open(file_name, 'r') as file:
lines = file.readlines()
morse_code = []
delay_count = 0
for line in lines:
line = line.strip()
if '600' in line:
morse_code.append('-')
delay_count = 0
elif '300' in line:
morse_code.append('.')
delay_count = 0
elif 'delay' in line:
delay_count += 1
if delay_count == 3:
morse_code.append(' ')
delay_count = 0
else:
delay_count = 0
return ''.join(morse_code)
if __name__ == '__main__':
file_name = 'main.c'
morse_result = morse_from_file(file_name)
print(morse_result)
The morse code is not valid , am I doing something wrong ?
uv run solve.py
........----........----..------..........--..------..........------....----........--..--..--..--------------..----..--............------..--..--....--------..
.-
-. --- .. ... -.--
-... ..- --.. --.. . .-.
-.-. --- -- -- .- -. -.. ...
.- - - . -. - .. --- -.
that morse means
A NOISY BUZZER COMMANDS ATTENTION
Posts: 36
Threads: 16
Joined: Feb 2025
Posts: 25
Threads: 5
Joined: Jan 2025
(Apr 05, 2025, 07:28 AM)Phoka Wrote: (Apr 05, 2025, 02:05 AM)fr34cker Wrote: (Mar 26, 2025, 06:45 PM)x1rx Wrote: (Mar 23, 2025, 12:43 PM)Steward Wrote: (Mar 23, 2025, 12:13 PM)therepairer Wrote: We just need to add the curly braces, HTB{...}, and also we need to add spaces between each word of the output.
So, all capital letters, with spaces between words.
Why dont we just parse main function and decode the flag from the main function that send tones?
this is the working code to reveal the morse from decompiled main function
def morse_from_file(file_name):
with open(file_name, 'r') as file:
lines = file.readlines()
morse_code = []
delay_count = 0
for line in lines:
line = line.strip()
if '600' in line:
morse_code.append('-')
delay_count = 0
elif '300' in line:
morse_code.append('.')
delay_count = 0
elif 'delay' in line:
delay_count += 1
if delay_count == 3:
morse_code.append(' ')
delay_count = 0
else:
delay_count = 0
return ''.join(morse_code)
if __name__ == '__main__':
file_name = 'main.c'
morse_result = morse_from_file(file_name)
print(morse_result)
The morse code is not valid , am I doing something wrong ?
uv run solve.py
........----........----..------..........--..------..........------....----........--..--..--..--------------..----..--............------..--..--....--------..
.-
-. --- .. ... -.--
-... ..- --.. --.. . .-.
-.-. --- -- -- .- -. -.. ...
.- - - . -. - .. --- -.
that morse means
A NOISY BUZZER COMMANDS ATTENTION
put it inside HTB{here} maintaining spaces and u got the flag...
Posts: 95
Threads: 14
Joined: Dec 2024
[/quote]
that morse means
A NOISY BUZZER COMMANDS ATTENTION
[/quote]
put it inside HTB{here} maintaining spaces and u got the flag...
[/quote]
i already solved that tho
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