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{% endhint %} ## **ํŒŒ์ผ์—์„œ ๋ฐ์ดํ„ฐ ์ถ”์ถœํ•˜๊ธฐ** ### **Binwalk** ๋‚ด์žฅ๋œ ์ˆจ๊ฒจ์ง„ ํŒŒ์ผ๊ณผ ๋ฐ์ดํ„ฐ๋ฅผ ์ฐพ๊ธฐ ์œ„ํ•œ ์ด์ง„ ํŒŒ์ผ ๊ฒ€์ƒ‰ ๋„๊ตฌ์ž…๋‹ˆ๋‹ค. `apt`๋ฅผ ํ†ตํ•ด ์„ค์น˜๋˜๋ฉฐ, ์†Œ์Šค๋Š” [GitHub](https://github.com/ReFirmLabs/binwalk)์—์„œ ํ™•์ธํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ```bash binwalk file # Displays the embedded data binwalk -e file # Extracts the data binwalk --dd ".*" file # Extracts all data ``` ### **Foremost** ํ—ค๋”์™€ ํ‘ธํ„ฐ๋ฅผ ๊ธฐ๋ฐ˜์œผ๋กœ ํŒŒ์ผ์„ ๋ณต๊ตฌํ•˜๋ฉฐ, png ์ด๋ฏธ์ง€์— ์œ ์šฉํ•ฉ๋‹ˆ๋‹ค. [GitHub](https://github.com/korczis/foremost)์—์„œ ์†Œ์Šค๋ฅผ ํ†ตํ•ด `apt`๋กœ ์„ค์น˜ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ```bash foremost -i file # Extracts data ``` ### **Exiftool** ํŒŒ์ผ ๋ฉ”ํƒ€๋ฐ์ดํ„ฐ๋ฅผ ๋ณด๊ธฐ ์œ„ํ•ด ์‚ฌ์šฉ๋˜๋ฉฐ, [์—ฌ๊ธฐ](https://www.sno.phy.queensu.ca/\~phil/exiftool/)์—์„œ ํ™•์ธํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ```bash exiftool file # Shows the metadata ``` ### **Exiv2** ๋ฉ”ํƒ€๋ฐ์ดํ„ฐ ๋ณด๊ธฐ์šฉ์œผ๋กœ exiftool๊ณผ ์œ ์‚ฌํ•ฉ๋‹ˆ๋‹ค. `apt`๋ฅผ ํ†ตํ•ด ์„ค์น˜ ๊ฐ€๋Šฅํ•˜๋ฉฐ, [GitHub](https://github.com/Exiv2/exiv2)์—์„œ ์†Œ์Šค๋ฅผ ํ™•์ธํ•  ์ˆ˜ ์žˆ๊ณ , [๊ณต์‹ ์›น์‚ฌ์ดํŠธ](http://www.exiv2.org/)๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค. ```bash exiv2 file # Shows the metadata ``` ### **ํŒŒ์ผ** ๋‹ค๋ฃจ๊ณ  ์žˆ๋Š” ํŒŒ์ผ์˜ ์œ ํ˜•์„ ์‹๋ณ„ํ•ฉ๋‹ˆ๋‹ค. ### **๋ฌธ์ž์—ด** ์ถœ๋ ฅ์„ ํ•„ํ„ฐ๋งํ•˜๊ธฐ ์œ„ํ•ด ๋‹ค์–‘ํ•œ ์ธ์ฝ”๋”ฉ ์„ค์ •์„ ์‚ฌ์šฉํ•˜์—ฌ ํŒŒ์ผ์—์„œ ์ฝ์„ ์ˆ˜ ์žˆ๋Š” ๋ฌธ์ž์—ด์„ ์ถ”์ถœํ•ฉ๋‹ˆ๋‹ค. ```bash strings -n 6 file # Extracts strings with a minimum length of 6 strings -n 6 file | head -n 20 # First 20 strings strings -n 6 file | tail -n 20 # Last 20 strings strings -e s -n 6 file # 7bit strings strings -e S -n 6 file # 8bit strings strings -e l -n 6 file # 16bit strings (little-endian) strings -e b -n 6 file # 16bit strings (big-endian) strings -e L -n 6 file # 32bit strings (little-endian) strings -e B -n 6 file # 32bit strings (big-endian) ``` ### **Comparison (cmp)** ์˜จ๋ผ์ธ์—์„œ ์ฐพ์€ ์›๋ณธ ๋ฒ„์ „๊ณผ ์ˆ˜์ •๋œ ํŒŒ์ผ์„ ๋น„๊ตํ•˜๋Š” ๋ฐ ์œ ์šฉํ•ฉ๋‹ˆ๋‹ค. ```bash cmp original.jpg stego.jpg -b -l ``` ## **ํ…์ŠคํŠธ์—์„œ ์ˆจ๊ฒจ์ง„ ๋ฐ์ดํ„ฐ ์ถ”์ถœํ•˜๊ธฐ** ### **๊ณต๊ฐ„์—์„œ ์ˆจ๊ฒจ์ง„ ๋ฐ์ดํ„ฐ** ๊ฒ‰๋ณด๊ธฐ์—๋Š” ๋น„์–ด ์žˆ๋Š” ๊ณต๊ฐ„์˜ ๋ณด์ด์ง€ ์•Š๋Š” ๋ฌธ์ž๋“ค์ด ์ •๋ณด๋ฅผ ์ˆจ๊ธธ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์ด ๋ฐ์ดํ„ฐ๋ฅผ ์ถ”์ถœํ•˜๋ ค๋ฉด [https://www.irongeek.com/i.php?page=security/unicode-steganography-homoglyph-encoder](https://www.irongeek.com/i.php?page=security/unicode-steganography-homoglyph-encoder) ๋ฅผ ๋ฐฉ๋ฌธํ•˜์„ธ์š”. ## **์ด๋ฏธ์ง€์—์„œ ๋ฐ์ดํ„ฐ ์ถ”์ถœํ•˜๊ธฐ** ### **GraphicMagick๋กœ ์ด๋ฏธ์ง€ ์„ธ๋ถ€์ •๋ณด ์‹๋ณ„ํ•˜๊ธฐ** [GraphicMagick](https://imagemagick.org/script/download.php)๋Š” ์ด๋ฏธ์ง€ ํŒŒ์ผ ์œ ํ˜•์„ ๊ฒฐ์ •ํ•˜๊ณ  ์ž ์žฌ์ ์ธ ์†์ƒ์„ ์‹๋ณ„ํ•˜๋Š” ๋ฐ ์‚ฌ์šฉ๋ฉ๋‹ˆ๋‹ค. ์ด๋ฏธ์ง€๋ฅผ ๊ฒ€์‚ฌํ•˜๋ ค๋ฉด ์•„๋ž˜ ๋ช…๋ น์„ ์‹คํ–‰ํ•˜์„ธ์š”: ```bash ./magick identify -verbose stego.jpg ``` ์†์ƒ๋œ ์ด๋ฏธ์ง€๋ฅผ ๋ณต๊ตฌํ•˜๋ ค๊ณ  ์‹œ๋„ํ•  ๋•Œ, ๋ฉ”ํƒ€๋ฐ์ดํ„ฐ ์ฃผ์„์„ ์ถ”๊ฐ€ํ•˜๋Š” ๊ฒƒ์ด ๋„์›€์ด ๋  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค: ```bash ./magick mogrify -set comment 'Extraneous bytes removed' stego.jpg ``` ### **Steghide๋ฅผ ํ†ตํ•œ ๋ฐ์ดํ„ฐ ์€๋‹‰** Steghide๋Š” `JPEG, BMP, WAV, AU` ํŒŒ์ผ ๋‚ด์— ๋ฐ์ดํ„ฐ๋ฅผ ์ˆจ๊ธฐ๋Š” ๊ธฐ๋Šฅ์„ ์ œ๊ณตํ•˜๋ฉฐ, ์•”ํ˜ธํ™”๋œ ๋ฐ์ดํ„ฐ๋ฅผ ์‚ฝ์ž…ํ•˜๊ณ  ์ถ”์ถœํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์„ค์น˜๋Š” `apt`๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ๊ฐ„๋‹จํ•˜๊ฒŒ ํ•  ์ˆ˜ ์žˆ์œผ๋ฉฐ, [์†Œ์Šค ์ฝ”๋“œ๋Š” GitHub์—์„œ ํ™•์ธํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค](https://github.com/StefanoDeVuono/steghide). **๋ช…๋ น์–ด:** * `steghide info file`์€ ํŒŒ์ผ์— ์ˆจ๊ฒจ์ง„ ๋ฐ์ดํ„ฐ๊ฐ€ ์žˆ๋Š”์ง€ ํ™•์ธํ•ฉ๋‹ˆ๋‹ค. * `steghide extract -sf file [--passphrase password]`๋Š” ์ˆจ๊ฒจ์ง„ ๋ฐ์ดํ„ฐ๋ฅผ ์ถ”์ถœํ•˜๋ฉฐ, ๋น„๋ฐ€๋ฒˆํ˜ธ๋Š” ์„ ํƒ ์‚ฌํ•ญ์ž…๋‹ˆ๋‹ค. ์›น ๊ธฐ๋ฐ˜ ์ถ”์ถœ์„ ์›ํ•˜์‹œ๋ฉด [์ด ์›น์‚ฌ์ดํŠธ](https://futureboy.us/stegano/decinput.html)๋ฅผ ๋ฐฉ๋ฌธํ•˜์„ธ์š”. **Stegcracker๋ฅผ ์ด์šฉํ•œ ๋ฌด์ฐจ๋ณ„ ๋Œ€์ž… ๊ณต๊ฒฉ:** * Steghide์˜ ๋น„๋ฐ€๋ฒˆํ˜ธ ํฌ๋ž˜ํ‚น์„ ์‹œ๋„ํ•˜๋ ค๋ฉด [stegcracker](https://github.com/Paradoxis/StegCracker.git)๋ฅผ ๋‹ค์Œ๊ณผ ๊ฐ™์ด ์‚ฌ์šฉํ•˜์„ธ์š”: ```bash stegcracker [] ``` ### **zsteg for PNG and BMP Files** zsteg๋Š” PNG ๋ฐ BMP ํŒŒ์ผ์—์„œ ์ˆจ๊ฒจ์ง„ ๋ฐ์ดํ„ฐ๋ฅผ ๋ฐœ๊ฒฌํ•˜๋Š” ๋ฐ ํŠนํ™”๋˜์–ด ์žˆ์Šต๋‹ˆ๋‹ค. ์„ค์น˜๋Š” `gem install zsteg`๋ฅผ ํ†ตํ•ด ์ด๋ฃจ์–ด์ง€๋ฉฐ, [GitHub์—์„œ ์†Œ์Šค](https://github.com/zed-0xff/zsteg)๋ฅผ ํ™•์ธํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. **Commands:** * `zsteg -a file`๋Š” ํŒŒ์ผ์— ๋ชจ๋“  ํƒ์ง€ ๋ฐฉ๋ฒ•์„ ์ ์šฉํ•ฉ๋‹ˆ๋‹ค. * `zsteg -E file`๋Š” ๋ฐ์ดํ„ฐ ์ถ”์ถœ์„ ์œ„ํ•œ ํŽ˜์ด๋กœ๋“œ๋ฅผ ์ง€์ •ํ•ฉ๋‹ˆ๋‹ค. ### **StegoVeritas and Stegsolve** **stegoVeritas**๋Š” ๋ฉ”ํƒ€๋ฐ์ดํ„ฐ๋ฅผ ํ™•์ธํ•˜๊ณ , ์ด๋ฏธ์ง€ ๋ณ€ํ™˜์„ ์ˆ˜ํ–‰ํ•˜๋ฉฐ, LSB ๋ฌด์ฐจ๋ณ„ ๋Œ€์ž… ๊ณต๊ฒฉ์„ ์ ์šฉํ•˜๋Š” ๋“ฑ ๋‹ค์–‘ํ•œ ๊ธฐ๋Šฅ์„ ์ œ๊ณตํ•ฉ๋‹ˆ๋‹ค. ์ „์ฒด ์˜ต์…˜ ๋ชฉ๋ก์€ `stegoveritas.py -h`๋ฅผ ์‚ฌ์šฉํ•˜๊ณ , ๋ชจ๋“  ๊ฒ€์‚ฌ๋ฅผ ์‹คํ–‰ํ•˜๋ ค๋ฉด `stegoveritas.py stego.jpg`๋ฅผ ์‚ฌ์šฉํ•˜์„ธ์š”. **Stegsolve**๋Š” ๋‹ค์–‘ํ•œ ์ƒ‰์ƒ ํ•„ํ„ฐ๋ฅผ ์ ์šฉํ•˜์—ฌ ์ด๋ฏธ์ง€ ๋‚ด ์ˆจ๊ฒจ์ง„ ํ…์ŠคํŠธ๋‚˜ ๋ฉ”์‹œ์ง€๋ฅผ ๋“œ๋Ÿฌ๋ƒ…๋‹ˆ๋‹ค. [GitHub์—์„œ](https://github.com/eugenekolo/sec-tools/tree/master/stego/stegsolve/stegsolve) ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ### **FFT for Hidden Content Detection** Fast Fourier Transform (FFT) ๊ธฐ์ˆ ์€ ์ด๋ฏธ์ง€์—์„œ ์ˆจ๊ฒจ์ง„ ์ฝ˜ํ…์ธ ๋ฅผ ๋“œ๋Ÿฌ๋‚ผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์œ ์šฉํ•œ ๋ฆฌ์†Œ์Šค๋Š” ๋‹ค์Œ๊ณผ ๊ฐ™์Šต๋‹ˆ๋‹ค: * [EPFL Demo](http://bigwww.epfl.ch/demo/ip/demos/FFT/) * [Ejectamenta](https://www.ejectamenta.com/Fourifier-fullscreen/) * [FFTStegPic on GitHub](https://github.com/0xcomposure/FFTStegPic) ### **Stegpy for Audio and Image Files** Stegpy๋Š” PNG, BMP, GIF, WebP ๋ฐ WAV์™€ ๊ฐ™์€ ํ˜•์‹์„ ์ง€์›ํ•˜์—ฌ ์ด๋ฏธ์ง€ ๋ฐ ์˜ค๋””์˜ค ํŒŒ์ผ์— ์ •๋ณด๋ฅผ ์‚ฝ์ž…ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. [GitHub์—์„œ](https://github.com/dhsdshdhk/stegpy) ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ### **Pngcheck for PNG File Analysis** PNG ํŒŒ์ผ์„ ๋ถ„์„ํ•˜๊ฑฐ๋‚˜ ๊ทธ ์ง„์œ„๋ฅผ ํ™•์ธํ•˜๋ ค๋ฉด: ```bash apt-get install pngcheck pngcheck stego.png ``` ### **์ด๋ฏธ์ง€ ๋ถ„์„์„ ์œ„ํ•œ ์ถ”๊ฐ€ ๋„๊ตฌ** ๋” ๋งŽ์€ ํƒ์ƒ‰์„ ์›ํ•˜์‹œ๋ฉด ๋‹ค์Œ์„ ๋ฐฉ๋ฌธํ•ด ๋ณด์„ธ์š”: * [Magic Eye Solver](http://magiceye.ecksdee.co.uk/) * [Image Error Level Analysis](https://29a.ch/sandbox/2012/imageerrorlevelanalysis/) * [Outguess](https://github.com/resurrecting-open-source-projects/outguess) * [OpenStego](https://www.openstego.com/) * [DIIT](https://diit.sourceforge.net/) ## **์˜ค๋””์˜ค์—์„œ ๋ฐ์ดํ„ฐ ์ถ”์ถœํ•˜๊ธฐ** **์˜ค๋””์˜ค ์Šคํ…Œ๊ฐ€๋…ธ๊ทธ๋ž˜ํ”ผ**๋Š” ์‚ฌ์šด๋“œ ํŒŒ์ผ ๋‚ด์— ์ •๋ณด๋ฅผ ์ˆจ๊ธฐ๋Š” ๋…ํŠนํ•œ ๋ฐฉ๋ฒ•์„ ์ œ๊ณตํ•ฉ๋‹ˆ๋‹ค. ์ˆจ๊ฒจ์ง„ ์ฝ˜ํ…์ธ ๋ฅผ ์‚ฝ์ž…ํ•˜๊ฑฐ๋‚˜ ๊ฒ€์ƒ‰ํ•˜๊ธฐ ์œ„ํ•ด ๋‹ค์–‘ํ•œ ๋„๊ตฌ๊ฐ€ ์‚ฌ์šฉ๋ฉ๋‹ˆ๋‹ค. ### **Steghide (JPEG, BMP, WAV, AU)** Steghide๋Š” JPEG, BMP, WAV ๋ฐ AU ํŒŒ์ผ์— ๋ฐ์ดํ„ฐ๋ฅผ ์ˆจ๊ธฐ๊ธฐ ์œ„ํ•ด ์„ค๊ณ„๋œ ๋‹ค๋ชฉ์  ๋„๊ตฌ์ž…๋‹ˆ๋‹ค. ์ž์„ธํ•œ ์ง€์นจ์€ [stego tricks documentation](stego-tricks.md#steghide)์—์„œ ํ™•์ธํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ### **Stegpy (PNG, BMP, GIF, WebP, WAV)** ์ด ๋„๊ตฌ๋Š” PNG, BMP, GIF, WebP ๋ฐ WAV๋ฅผ ํฌํ•จํ•œ ๋‹ค์–‘ํ•œ ํ˜•์‹๊ณผ ํ˜ธํ™˜๋ฉ๋‹ˆ๋‹ค. ๋” ๋งŽ์€ ์ •๋ณด๋Š” [Stegpy's section](stego-tricks.md#stegpy-png-bmp-gif-webp-wav)์„ ์ฐธ์กฐํ•˜์„ธ์š”. ### **ffmpeg** ffmpeg๋Š” ์˜ค๋””์˜ค ํŒŒ์ผ์˜ ๋ฌด๊ฒฐ์„ฑ์„ ํ‰๊ฐ€ํ•˜๋Š” ๋ฐ ์ค‘์š”ํ•˜๋ฉฐ, ์ž์„ธํ•œ ์ •๋ณด๋ฅผ ๊ฐ•์กฐํ•˜๊ณ  ๋ถˆ์ผ์น˜๋ฅผ ์ •ํ™•ํžˆ ์ง€์ ํ•ฉ๋‹ˆ๋‹ค. ```bash ffmpeg -v info -i stego.mp3 -f null - ``` ### **WavSteg (WAV)** WavSteg๋Š” ๊ฐ€์žฅ ๋‚ฎ์€ ์œ ์˜ ๋น„ํŠธ ์ „๋žต์„ ์‚ฌ์šฉํ•˜์—ฌ WAV ํŒŒ์ผ ๋‚ด์—์„œ ๋ฐ์ดํ„ฐ๋ฅผ ์ˆจ๊ธฐ๊ณ  ์ถ”์ถœํ•˜๋Š” ๋ฐ ๋›ฐ์–ด๋‚ฉ๋‹ˆ๋‹ค. [GitHub](https://github.com/ragibson/Steganography#WavSteg)์—์„œ ์ ‘๊ทผํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๋ช…๋ น์–ด๋Š” ๋‹ค์Œ๊ณผ ๊ฐ™์Šต๋‹ˆ๋‹ค: ```bash python3 WavSteg.py -r -b 1 -s soundfile -o outputfile python3 WavSteg.py -r -b 2 -s soundfile -o outputfile ``` ### **Deepsound** Deepsound๋Š” AES-256์„ ์‚ฌ์šฉํ•˜์—ฌ ์‚ฌ์šด๋“œ ํŒŒ์ผ ๋‚ด์˜ ์ •๋ณด๋ฅผ ์•”ํ˜ธํ™”ํ•˜๊ณ  ๊ฐ์ง€ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. [๊ณต์‹ ํŽ˜์ด์ง€](http://jpinsoft.net/deepsound/download.aspx)์—์„œ ๋‹ค์šด๋กœ๋“œํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ### **Sonic Visualizer** Sonic Visualizer๋Š” ์˜ค๋””์˜ค ํŒŒ์ผ์˜ ์‹œ๊ฐ์  ๋ฐ ๋ถ„์„์  ๊ฒ€์‚ฌ๋ฅผ ์œ„ํ•œ ๊ท€์ค‘ํ•œ ๋„๊ตฌ๋กœ, ๋‹ค๋ฅธ ๋ฐฉ๋ฒ•์œผ๋กœ๋Š” ๊ฐ์ง€ํ•  ์ˆ˜ ์—†๋Š” ์ˆจ๊ฒจ์ง„ ์š”์†Œ๋ฅผ ๋“œ๋Ÿฌ๋‚ผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๋” ๋งŽ์€ ์ •๋ณด๋Š” [๊ณต์‹ ์›น์‚ฌ์ดํŠธ](https://www.sonicvisualiser.org/)๋ฅผ ๋ฐฉ๋ฌธํ•˜์„ธ์š”. ### **DTMF Tones - Dial Tones** ์˜ค๋””์˜ค ํŒŒ์ผ์—์„œ DTMF ํ†ค์„ ๊ฐ์ง€ํ•˜๋Š” ๊ฒƒ์€ [์ด DTMF ๊ฐ์ง€๊ธฐ](https://unframework.github.io/dtmf-detect/)์™€ [DialABC](http://dialabc.com/sound/detect/index.html)์™€ ๊ฐ™์€ ์˜จ๋ผ์ธ ๋„๊ตฌ๋ฅผ ํ†ตํ•ด ๊ฐ€๋Šฅํ•ฉ๋‹ˆ๋‹ค. ## **Other Techniques** ### **Binary Length SQRT - QR Code** ์ •์ˆ˜๋กœ ์ œ๊ณฑ๋˜๋Š” ์ด์ง„ ๋ฐ์ดํ„ฐ๋Š” QR ์ฝ”๋“œ๋ฅผ ๋‚˜ํƒ€๋‚ผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ํ™•์ธํ•˜๋ ค๋ฉด ์ด ์ฝ”๋“œ๋ฅผ ์‚ฌ์šฉํ•˜์„ธ์š”: ```python import math math.sqrt(2500) #50 ``` For binary to image conversion, check [dcode](https://www.dcode.fr/binary-image). To read QR codes, use [this online barcode reader](https://online-barcode-reader.inliteresearch.com/). ### **์ ์ž ๋ฒˆ์—ญ** ์ ์ž๋ฅผ ๋ฒˆ์—ญํ•˜๊ธฐ ์œ„ํ•ด [Branah Braille Translator](https://www.branah.com/braille-translator)๋Š” ํ›Œ๋ฅญํ•œ ์ž์›์ž…๋‹ˆ๋‹ค. ## **์ฐธ๊ณ ๋ฌธํ—Œ** * [**https://0xrick.github.io/lists/stego/**](https://0xrick.github.io/lists/stego/) * [**https://github.com/DominicBreuker/stego-toolkit**](https://github.com/DominicBreuker/stego-toolkit) {% hint style="success" %} Learn & practice AWS Hacking:[**HackTricks Training AWS Red Team Expert (ARTE)**](https://training.hacktricks.xyz/courses/arte)\ Learn & practice GCP Hacking: [**HackTricks Training GCP Red Team Expert (GRTE)**](https://training.hacktricks.xyz/courses/grte)
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