windows 11 환경에서 풀이를 진행하였습니다.
문제 파일을 확인해보면 스팸 문자가 적힌 텍스트 파일입니다.
Dear Professional ; Especially for you - this cutting-edge
intelligence ! If you no longer wish to receive our
publications simply reply with a Subject: of "REMOVE"
and you will immediately be removed from our club .
This mail is being sent in compliance with Senate bill
2216 ; Title 9 ; Section 304 ! This is not a get rich
scheme ! Why work for somebody else when you can become
rich inside 53 weeks ! Have you ever noticed people
are much more likely to BUY with a credit card than
cash & people love convenience . Well, now is your
chance to capitalize on this . WE will help YOU sell
more and deliver goods right to the customer's doorstep
! You can begin at absolutely no cost to you . But
don't believe us . Mrs Anderson who resides in Michigan
tried us and says "I've been poor and I've been rich
- rich is better" ! This offer is 100% legal . You
will blame yourself forever if you don't order now
. Sign up a friend and you'll get a discount of 70%
! Thank-you for your serious consideration of our offer
! Dear Sir or Madam ; Thank-you for your interest in
our publication ! If you are not interested in our
publications and wish to be removed from our lists,
simply do NOT respond and ignore this mail ! This mail
is being sent in compliance with Senate bill 2116 ,
Title 5 , Section 304 ! This is a ligitimate business
proposal . Why work for somebody else when you can
become rich inside 85 days ! Have you ever noticed
how many people you know are on the Internet plus people
are much more likely to BUY with a credit card than
cash . Well, now is your chance to capitalize on this
. We will help you SELL MORE plus increase customer
response by 170% ! You are guaranteed to succeed because
we take all the risk ! But don't believe us ! Mr Simpson
who resides in Wyoming tried us and says "I was skeptical
but it worked for me" . We assure you that we operate
within all applicable laws ! If not for you then for
your LOVED ONES - act now ! Sign up a friend and your
friend will be rich too . Thank-you for your serious
consideration of our offer .
위 텍스트 파일은 평문을 스팸 메시지로 변환한 것 입니다.
아래 사이트로 가서 복호화를 돌려줍시다.
https://www.spammimic.com/decode.cgi
플래그 획득
flag_is_b3st_spam_st3g4n0
'write-up(forensic) > ctf-d' 카테고리의 다른 글
[ctf-d] Wota write-up (0) | 2023.02.08 |
---|---|
[ctf-d] 호레이쇼가 플래그를 보며… write-up (0) | 2023.02.08 |
[ctf-d] splitted write-up (0) | 2023.02.07 |
[ctf-d] Graphics Interchange Format write-up (0) | 2023.02.03 |
[ctf-d] basics write-up (0) | 2023.02.03 |