In web exploitation challenges (like those on Hack The Box ), a common "hack" involves creating an "invisible" link to system files:
: Even if files inside are encrypted or empty, the flag might be in plain text within the ZIP's binary or comments. Run strings InvisibleHack.zip | grep -i flag to check. InvisibleHack.zip
: Link a dummy file to a sensitive one (e.g., ln -s /etc/passwd link.txt ). In web exploitation challenges (like those on Hack
: A password-protected ZIP might be hidden inside another file (like an image) using tools like steghide . 2. Web: The "Invisible" Symlink Hack : A password-protected ZIP might be hidden inside
Be cautious if the file is described as "invisible" due to its deceptive size. A is a small file (e.g., 42 KB) that decompresses into an astronomical amount of data (up to 55.4 Yottabytes), designed to crash systems that attempt to extract it.