misc

Misc

Grab bag of handy tools for oddball CTF tasks.

Quick wins

• Check for visual obfuscation (pixelation, QR distortion) with specialized tools.
• For audio/tones, use DTMF or spectrogram helpers.
• Keep keyboard layout references for substitution-style puzzles.

Tools and references

• Decode android pattern lock

  • DecodeAndroidGesture

• Recover data from pixelized image

  • Depix
    • writeup

• Extract numbers from an audio recording of the dial tones

  • online-tool
  • dtmf-decoder

• Recover QR code

  • qrazybox

• Keyboard layouts (workman, qwerty, dvorak, colemak)

  • https://awsm-tools.com/keyboard-layout
  • Example

    Fy, sflla-oflla, hppla-oflla, jpf assfluk' U'l a yflak
    Dyab U gpbba hp bp grb ub bywpfgy bp jpf U'l sf;rwyflak•
    Ukkpcabucr akh U'l lahr pt wfvvrw sp byab akjbyukg
    Jpf saj us wumpmyrbuk' ptt pt lr, akh ub'oo gofr bp jpf akh
    U'l hrcasbabukg, lpwr byak rcrw hrlpksbwabukg
    

• G-code for CNC Machining

  • https://gcodetutor.com/cnc-program-simulator.html
  • Example

    G01 X319.6025 Y6.859274
    G01 X319.2251 Y6.816967
    G01 X318.8967 Y6.706747
    G01 X318.6183 Y6.531953
    G01 X318.3934 Y6.299265
    

• Punch card

  • https://www.masswerk.at/keypunch/

• pastebin

  • Can save your note with password protected url looks like LX2gkn81

Git

• Show full history
  • git log --patch --follow -- text.txt > full_history.txt

LaTeX

• Read file

  \renewcommand\r{\ifeof\file\else\read\file to\line\line\r\fi}
  \catcode`_=3
  \newread\file
  \openin\file=/etc/passwd
  \r
  \closein\file
  

• Extract all files

  • https://github.com/internetwache/GitTools/tree/master/Extractor

• Symbols

  • https://detexify.kirelabs.org/symbols.html
  • https://snip.mathpix.com/