Writeups
  • crypt0nite
  • CTFs
    • darkctf
      • Web
        • Simple SQL
      • Rev
        • helloworld
      • pwn
        • roprop
        • newPAX
      • OSINT
        • Find Cell
        • Dark Social Web
      • Linux
        • Linux Starter
        • Find Me
      • forensics
        • Wolfie's Contact
        • Free Games
        • AW
      • crypto
        • haXXor
        • Pipe Rhyme
    • csictf
      • Crypto
        • Mein Kampf
        • Rivest-Shamir-Adleman
      • Linux
        • AKA
      • Miscellaneous
        • No DIStractions
      • OSINT
        • Pirates of the Memorial
        • Commitment
        • Flying Places
        • Shaken
      • Pwn
        • Pwn Intended 0x1
        • Pwn Intended 0x2
        • Pwn Intended 0x3
        • Global Warming
        • Smash
        • Secret Society
      • Reversing
        • Blaise
        • RicknMorty
      • Web
        • Oreo
        • Mr. Rami
        • The Confused Deputy
    • NahamCon
      • Crypto
        • Unvreakable Vase
        • Ooo-La-La
        • HomeCooked
        • DocXor
      • Forensics
        • Volatile
        • Microsooft
        • Cow Pie
      • Miscellaneous
        • Fake File
        • Alkatraz
      • Mobile
        • CAndroid
        • Simple App
      • OSINT
        • New Year's Solutions
        • Tron
      • Pwn
        • Dangerous
      • Scripting
        • Rotten
        • Really Powerful Gnomes
      • Steganography
        • KSteg
      • Web
        • PHPhone Book
        • Official Business
        • Localghost
        • Agent 95
    • BSides Delhi
      • Thanks for Attending
      • Cookie Robot
    • hacktoberctf
      • Traffic Analysis
        • Evil Corp's Child 1, 2 and 3
        • Remotely Administered Evil 1 and 2
        • An Evil Christmas Carol 1 and 2
      • Forensics
        • Captured Memories
        • Amcaching In
      • Linux
        • Talking To The Dead
Powered by GitBook
On this page

Was this helpful?

Export as PDF
  1. CTFs
  2. NahamCon
  3. Crypto

DocXor

We used this tool to guess the key, setting the keylength to 4 as this was said in the briefing.

We then used cyberchef to XOR the file with the key 5a 41 99 bb

It says it determines a .zip file, but when unzipping you realise it's a .docx file so change the extension to get:

flag{xor_is_not_for_security}

PreviousHomeCookedNextForensics

Last updated 4 years ago

Was this helpful?