Preparation.zip: Mirai--39-s Exam

: Recover the hidden flag/information within the provided ZIP archive. 1. Initial File Analysis

If the ZIP file is encrypted (which is common for this specific challenge), you will need to crack the password. John the Ripper fcrackzip -u -D -p rockyou.txt Mirai-- -s\ Exam\ Preparation.zip Use code with caution. Copied to clipboard Expected Result

If prompted for a passphrase, try the ZIP password or strings found in the text files. 4. Hex/Strings Analysis Search for the flag format (e.g., ) within the binary data. strings Mirai-- -s\ Exam\ Preparation.zip | grep Use code with caution. Copied to clipboard Mirai--39-s Exam Preparation.zip

This write-up covers the analysis and solution for the forensics challenge involving the file "Mirai--39-s Exam Preparation.zip" (commonly appearing as "Mirai's Exam Preparation.zip"). Challenge Overview Mirai--39-s Exam Preparation.zip : Forensics / Steganography

can reveal if there are multiple files concatenated or hidden data appended to the end of the ZIP. 2. ZIP Password Recovery : Recover the hidden flag/information within the provided

to look for non-standard ZIP headers or hidden "garbage" data at the end of the file (EOF). 5. Conclusion & Flag Recovery

: The password is often related to "Mirai" or a simple common password found in the 3. Deep Dive into Extracted Files Once extracted, focus on the individual files: Metadata Analysis : Check the EXIF data of any images using John the Ripper fcrackzip -u -D -p rockyou

. Look for "Artist," "Comments," or "Description" tags that might contain the flag or a hint. Hidden Data (Steghide) : If an image like is present, check for hidden data using: steghide extract -sf mirai.png Use code with caution. Copied to clipboard