misceasy

Kotik (Cat)

duckerz

Task: extract a flag hidden inside a JPEG image file. Solution: repair the corrupted JPEG header, find an appended ZIP archive via PK signature, extract the WinZip AES-256 encrypted ZIP, crack the password with hashcat using rockyou.txt, and read the flag.

$ ls tags/ techniques/
header_repairfile_appendingzip_extractionwinzip_aes_cracking

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