Generate a SHA-256 hash to ensure the file hasn't been corrupted during transit.
Look for unusual high-entropy data at the end of the file. 5. Conclusion & Flag POST-09.rar
Use strings POST-09.rar to look for plaintext hints, potential passwords, or suspicious URLs embedded in the metadata. 2. Archive Inspection Generate a SHA-256 hash to ensure the file
If the archive is password-protected and no hint was provided in the challenge description: Use rar2john POST-09.rar > hash.txt . POST-09.rar
Ensure the header starts with 52 61 72 21 1A 07 (RAR 5.0) or 52 61 72 21 1A 07 00 (RAR 4.0).
