Houseplant CTF
Parasite [784 pts]
Challenge Description:
The given file Parasite.txt has the content:
.--- -.. ..- -- . -.- -.- -.. ..-. .--. ..- ..-. .--. - -.- .--- . ..-. .-.. ..- --. . ..- -.- -.-. .... -.- -.- ..- .-- ..-. ..- -... .
The challenge hint says – “Make sure you keep track of the spacing- it’s there for a reason”. Replacing all 3 space clusters with ‘/’ and decrypting the Morse Code, we get JDU MEK KDF PUF PTK JEF LU GEUK CHK KUW FU BE
.--- -.. ..-/ -- . -.-/ -.- -.. ..-./ .--. ..- ..-./ .--. - -.-/ .--- . ..-./ .-.. ..-/ --. . ..- -.-/ -.-. .... -.-/ -.- ..- .--/..-. ..-/ -... .
From, the random capitalization in the Challenge Description, it is quite evident that “SKATS” is hidden. Googling “SKATS” leads to a Wikipedia Page which gives a table for translating the text to Korean:
After substitution we get 희망은진정한기생충입니다
On translating it with Google Translate, we get:
Modifying it to match the flag format, we get the flag: rtcp{Hope_is_a_true_parasite}