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John the ripper & hydra password cracking tool
- 1. Presentation on John The Ripper and Hydra Password Cracking Tools
- 2. PRESENTED BY Name Roll No: 1. Shahidur Rahman 1703035 2. Md. Raquibul Hoque 1703041 3. Md. Moshiur Rahman 1703025
- 3. PASSWORD CRACKING • 1. Low Tech • - Social Engineering • - Shoulder surfing • - password guessing • 2. Hight Tech • - Brute –force attack • - Dictionary attack • - Rainbow attack
- 4. PASSWORD CRACKING TOOLS • John the Ripper • Aircrack-ng • RainbowCrack • Cain and Abel • THC Hydra • HashCat • Crowbar • OphCrack • Etc.
- 5. JOHN THE RIPPER OVERVIEW • First stable release in May 2013, Version 1.8 • Initially developed for the Unix operating system, it now runs on fifteen different platforms. • It uses Brute force & Dictionary attack • It has 3 modes. Single, Incremental & Wordlist
- 6. TYPES • 1. John the Ripper Pro -Linux and Mac OSX • 2. John the Ripper Official –All Platforms • 3. John the Ripper Community Enhanced –All Platforms
- 7. HOW IT WORKS Open the Tools in Kali linus
- 8. HOW IT WORKS • Type “man john” in the terminal
- 9. HOW IT WORKS • Add User
- 10. HOW IT WORKS • Wordlist and Shadow file
- 11. HOW IT WORKS • Shadow file
- 12. HOW IT WORKS
- 13. HYDRA OVERVIEW Developed by Van Hauser from The Hacker’s Choice and David Maciejak • Uses a dictionary attack or brute force methods to test for weak or "simple“ passwords. • Platforms : Linux, Mac OS, Windows/Cygwin etc. • Its more famous because it can support around 30 protocols like ftp, http, https etc. • Other tools like Medusa and Ncrack provide similar speed. • It is available as a GUI also (even though a little difficult to get in windows).
- 14. INSTALLING HYDRA • Linux based Many have them pre-installed, else $ apt-get install hydra e $ apt-get install hydra $ apt-get install hydra-gtk • Windows Download hydra zip file Install Cygwin Compile hydra using cygwin
- 15. HYDRA GUI
- 16. HYDRA GUI
- 17. HYDRA GUI
- 19. HYDRA COMMAND SYNTAX • Syntax: hydra fir-I LOGIN -L FILE] [p PASSI-P FILE]] I [C FILE]] [e nsr] [0 FILE] [t TASKS] [M FILE [T TASKS]] 1w TIME] [W TIME] 14] [5 PORT] [x MIN:MAX:CHARSET] [SuvV46] [service://servertPORTNOPT]] [v/ -V] • Simplified basic syntax: hydra —1/-L <user> -p/-P <passwords> <IP address> <protocoI><form parameters> <failed login message> • -I/-L LOGIN or -L FILE login with LOGIN name, or load several logins from FILE • -p /-P PASS or -P FILE try password PASS, or load several passwords from FILE • <IP address> is the host address. • <protocol> is the protocol used in that page. • <form parameters> is the parameters when brute forcing web forms • <failed login message> is the message you get, when you enter invalid usernames and passwords.
- 20. CONCLUSION • Password Cracking Depends on • Attacker’s strengths • Attacker’s computing resources • Attacker’s knowledge • Attacker’s mode of access [ physical or online] • Strength of the passwords How often you change your passwords? • How close are the old and new passwords? • How long is your password? • Have you used every possible combination alphabets, numbers and special characters? • How common are your letters, words, numbers or combination?• • Have you used strings followed by numbers or vice versa, instead of mixing them randomly?