Clear it in 3 steps
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Start the environment
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Investigate the target
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Submit the flag
All challenges
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Decompress Multi-Layer Archive
Mission
Decompress a file that has been compressed multiple times with different formats (zip, tar, gzip, bzip2). Learn to identify file signatures and compression formats. Provided file: mystery.file
Hints
Hint 1 Show
Use file to identify each layer's format and peel it with the matching tool (gunzip/bunzip2/unxz/unzip/tar)
Hint 2 Show
Some archives hold multiple members with a fake flag.txt or noise; follow the member that is still a compressed/archive format
Hint 3 Show
Loop until you reach the real flag.txt