[T3N4CI0US CTF 2022] write-ups

yoobi·2022년 5월 31일
0

Team : 0TPA
Rank : 5/613th

Crypto

Easy and Dancing

Dancing !!
Easy Dancing !!

Challenge File : https://bit.ly/3iCV9Uh

Author : Syno

We can decode the given File's encryption by docode.fr.

https://www.dcode.fr/dancing-men-cipher

FLAG : BCTF{dancing_is_happy}

Misc

Fr33_F1aG

RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

We can get the FLAG in RULE.

FLAG : BCTF{Welc0M3_T3N4CI0US_CTF!!}

Discord

Happy Hacking !

We can get the FLAG in given Discord Server.

FLAG : BCTF{fouaihweofi_fkjajsjdfl}

pws

Find the password hidden in this file
and release

link : https://bit.ly/3JEtCh2
Solve this problem and solve the flag problem

flag format : BCTF{...}

[Author]
Dolpari

We can access the "flag is" post using pw : DolpariLet'sGo

https://dolpari-is-come.tistory.com/18


We can get the FLAG in there.

FLAG : BCTF{your_get_the_flag}

flag

Go to Discord and we'll give you a flag.
Discord link is in trouble somewhere
Please solve the pws problem first

flag format : BCTF{...}

[AUTHOR]
Dolpari

When we check given Discord Sever by "pws" chall.
https://bit.ly/36kBTsf

We can get FLAG in general channels.

FLAG : BCTF{for_for_flag}

flag 2

If you want to get a flag, answer me the flag in the flag question
Please solve the flag problem first

flag format : BCTF{...}

When we check given Discord Sever by "pws" chall.

https://bit.ly/36kBTsf

We can get FLAG in flag channels.

FLAG : {good_luck}

password?

Find the password (the password is ?) and add 1234567 to the password.
     password : 2 1 1 1 1 2 1 3 2 2 2 1 1 1 1 1 1 1 2 1 1 2 ? 2 2 1

flag format : BCTF{...}

[Author]
dolpari

The given description told me that the FLAG is ? + 1234567.
Then, in password it have only 1,2,3.
Thus, I try BCTF{1234568}, BCTF{1234569}, BCTF{1234570}

FLAG : BCTF{1234570}

They

About them!
https://bit.ly/3JAMXzx

flag format : BCTF{...}

[Author]
Dolpari

There were 9 jpg files given.

1 Benjamin Franklin USA
2 Charlie Chaplin USA
3 Thomas Hobbs England
4 Ferdinand Magellan Spain
5 Anna Eleanor Roosevelt USA
6 Elizabeth England
7 Ronald Reagan USA
8 Thomas Aquinas Italy
9 Harry Potter England

"BCTFAERTH" is first letters of them.

We can think that the "AERTH" is the key.

from itertools import permutations

arr = "AERTH"

arr = list(permutations(arr,5))

for i in arr:
    string = ''.join(i)
    print(string)
    
'''
.
.
.
EARTH
EARHT
EATRH
EATHR
EAHRT
EAHTR
ERATH
ERAHT
ERTAH
ERTHA
ERHAT
ERHTA
ETARH
ETAHR
ETRAH
ETRHA
ETHAR
ETHRA
EHART
EHATR
EHRAT
EHRTA
EHTAR
EHTRA
.
.
.
'''

We can see that the word "EARTH".

FLAG : BCTF{EARTH}

HidD3n M3sSaGE

you know hidden message ?

Please include BCTF{}

File link : https://bit.ly/3NfSLAP

Author : Syno

There was Encrypted chall.txt was given.

This ⅰs ⅴery similar to Flag. 
Ηοweνer, ⅰt may be
dіfficult tο find
thⅰs.
Do yоu knοw what this is?

This is Twitter Stegano
https://holloway.nz/steg/

FLAG : BCTF{you_kn0w_tw1tt3r_m3ssag3s?}

last1 MISC

[ B C T F { l a s t 1 _ M I S C } ]

[Author]
Dolpari

The FLAG was given in description.

FLAG : BCTF{last1_MISC}

last2 MISC

[ o t t f f s s e n t ]
what's mean?

flag format : BCTF{...}

[Author]
Dolpari

When we search the word "ottffssent".

FLAG : BCTF{number}

profile
this is yoobi

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