More than Meets the Eye?
Description
CTF: Whitehacks 2021
Is there something here that's more than meets the eye?
Solution
Pwned by @teamfreestuff (opens in a new tab)
If you look carefully, there are several invisible unicode characters in the problem description above.
This is clearly unicode steganography. The characters used are:
- WORD JOINER (U+2060)
- ZERO WIDTH SPACE (U+200B)
- ZERO WIDTH NON-JOINER (U+200C)
- ZERO WIDTH NO-BREAK SPACE (U+FEFF)
If we search around, we are able to find an online unicode steganography decrypter.
WH2021{z3r0_w1dth_ch@r@ct3r_c0uNtS_t00}