Extract a hidden "flag" (a specific string like FLAG{...} ) from within the RAR archive.
On Windows-based tasks, the flag might be hidden in an NTFS stream associated with the file. 5. Tools Summary Tool Recommended Inspection file , binwalk , strings Hex Editing HxD , 010 Editor Cracking Hashcat , John the Ripper , fcrackzip Extraction 7z , WinRAR , unrar task.GOt1k.rar
Using a hex editor (like or 010 Editor ), check the magic bytes. A standard RAR file should start with 52 61 72 21 1A 07 00 (for RAR 4.x) or 52 61 72 21 1A 07 01 00 (for RAR 5.0). Extract a hidden "flag" (a specific string like FLAG{