State the final result or flag clearly (e.g., FLAG{luC1f3r_r3v34l3d_2026} ). 5. Lessons Learned
This is the "meat" of the write-up. Explain your steps chronologically.
Provide the MD5 or SHA256 hash to ensure others can verify they have the same file.
If the file is password-protected, note if it uses standard ZipCrypto or AES-256. This determines which tools (like bkcrack for ZipCrypto or John the Ripper for AES) are necessary. 3. Methodology & Exploitation
Describe the objective (e.g., "Decrypt the ZIP file to find the flag.txt"). 2. Initial Reconnaissance Document what you saw before interacting with the file.
If you found a known plaintext (like a common header), describe how you used a to recover the internal keys without a password.
If you used a brute-force attack, specify the wordlist (e.g., rockyou.txt ). Advanced Techniques:
Use the file command in Linux to confirm it is a true ZIP archive.