• THM Practice Room - https://tryhackme.com/room/johntheripper0, https://tryhackme.com/room/crackthehash

• Crack system (Linux) password -

  umask 077u****

  nshadow /etc/passwd /etc/shadow > mypasswd

Running umask 077 beforehand ensures the newly created “mypasswd” file (or whatever you want to call it) is created with more relaxed permissions and can be used by John.

• Steps -

1. First analyze hash type - john hashfile.hash
2. Then crack hash - john hashfile.hash --wordlist=/usr/share/wordlists/rockyou.txt --format=Raw-SHA1
3. Show the cracked password - john --show --format=Raw-SHA1 hashfile.hash OR john --show hashfile.hash

• Identify Hash Type tool - Haiti