What is John the Ripper use for?

John the Ripper is often used in the enterprise to detect weak passwords that could put network security at risk, as well as other administrative purposes.
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Can John the Ripper crack any password?

Now to crack the password, John the Ripper will identify all potential passwords in a hashed format. It will then match the hashed passwords with the initial hashed password and try to find a match. If a match is found in the password hash, John the Ripper then displays the password in raw form as the cracked password.
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What is John the Ripper and how does it work?

John the Ripper works by using the dictionary method favored by attackers as the easiest way to guess a password. It takes text string samples from a word list using common dictionary words or common passwords. It can also deal with encrypted passwords, and address online and offline attacks.
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Is John the Ripper still used?

One of the oldest password cracking and testing tools, John the Ripper is still an essential pen testing tool.
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What are the advantages of John the Ripper?

The major advantage of John The Ripper is that it is the free software tool that is helpful in recovering the password. This is available for all the operating system and is more compatible with the windows operating system and helps in the password recovery. It uses the command prompt to recover the password.
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How to use John the Ripper to crack complex passwords



Is John the Ripper good?

An outstanding cross-platform cracking tool

John the Ripper is one of the best tools that you'll find for cracking passwords. It's highly versatile, well supported, and free, and it should be in every security professional's toolkit.
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What is Medusa password cracker?

Medusa is an online password-cracking tool similar to THC Hydra. It claims to be a speedy parallel, modular and login brute-forcing tool. It supports HTTP, FTP, CVS, AFP, IMAP, MS SQL, MYSQL, NCP, NNTP, POP3, PostgreSQL, pcAnywhere, rlogin, SMB, rsh, SMTP, SNMP, SSH, SVN, VNC, VmAuthd and Telnet.
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Where is John crack password?

Cracked passwords will be printed to the terminal and saved in the file called $JOHN/john. pot (in the documentation and in the configuration file for John, "$JOHN" refers to John's "home directory"; which directory it really is depends on how you installed John).
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Is password cracking legal?

Under U.S. state and federal laws, more charges can be added depending on what threat actors do once they gain unauthorized access. In short, using a password cracking method to access one's own password is legal. Using these methods or tools to gain access to someone else's password can lead to criminal charges.
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How long does it take John the Ripper to crack a password?

"Single crack" mode runs typically take from under a second to one day (depending on the type and number of password hashes).
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Who created John the Ripper?

Alexander Peslyak, founder and CTO of Openwall, which created John the Ripper, says the password security-auditing tool is now nearly 20 percent faster at cracking Data Encryption Standard (DES)-based password hashes -- a major improvement to the hacking tool.
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Why is it called John the Ripper?

The name "John the ripper" was coined by Lost Soul, a cracker from UNITED_cRACKING_fORCE, who coined this name after Jack the cracker (The password cracker that preceded John the ripper) -NOTE: The program was called "Cracker Jack", not Jack the cracker.
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What is one of the disadvantages of using John the Ripper?

The main disadvantage is that John The Ripper password recovery tool is little bit complicated. Normal users are not good enough to understand the software and find it difficult to use John The Ripper software.
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Can John the Ripper crack WIFI?

John is able to crack WPA-PSK and WPA2-PSK passwords. Recent changes have improved performance when there are multiple hashes in the input file, that have the same SSID (the routers 'name' string).
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What is Hydra password cracker?

Hydra is a parallelized network login cracker built in various operating systems like Kali Linux, Parrot and other major penetration testing environments. Hydra works by using different approaches to perform brute-force attacks in order to guess the right username and password combination.
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Can John the Ripper be used on websites?

JtR is an open-source project, so you can either download and compile the source on your own, download the executable binaries, or find it as part of a penetration testing package. The official website for John the Ripper is on Openwall.
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What passwords do hackers use?

Those leaked emails often lead hackers directly to your passwords for other online accounts and identity theft, Lookout said.
...
These are the 20 most common passwords leaked on the dark web — make sure none of them are yours
  • 123456.
  • 123456789.
  • Qwerty.
  • Password.
  • 12345.
  • 12345678.
  • 111111.
  • 1234567.
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Is it illegal to hack into WIFI?

Though using an open Wi-Fi network doesn't feel like hacking, the federal Computer Fraud and Abuse Act sees things differently. That 1986 law makes it a felony to access computer systems, including routers, without authorization.
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What are rainbow tables used for?

Rainbow tables are tables of reversed hashes used to crack password hashes. Computer systems requiring passwords typically store the passwords as a hash value of the user's password. When a computer user enters a password, the system hashes the password and compares it to the stored hash.
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Does John the Ripper work on Windows 10?

John the Ripper is password cracking software used by penetration testers and cyber security experts. It is completely free. In starting it was only made for Unix operating system but now it can be used on several other platforms also like windows, mac, etc.
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What is aad3b435b51404eeaad3b435b51404ee?

The string “aad3b435b51404eeaad3b435b51404ee” is the LM hash for 'no password'. In other words, its empty.
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What is John the Ripper Kali Linux?

John the Ripper is a tool designed to help systems administrators to find weak (easy to guess or crack through brute force) passwords, and even automatically mail users warning them about it, if it is desired.
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What does Medusa do on Kali?

Medusa is intended to be a speedy, massively parallel, modular, login brute-forcer. The goal is to support as many services which allow remote authentication as possible. The author considers following items as some of the key features of this application: * Thread-based parallel testing.
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What is Ncrack used for?

Ncrack is a high-speed network authentication cracking tool. It was built to help companies secure their networks by proactively testing all their hosts and networking devices for poor passwords. Security professionals also rely on Ncrack when auditing their clients.
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What is Mimikatz EXE?

Mimikatz is a leading post-exploitation tool that dumps passwords from memory, as well as hashes, PINs and Kerberos tickets. Other useful attacks it enables are pass-the-hash, pass-the-ticket or building Golden Kerberos tickets. This makes post-exploitation lateral movement within a network easy for attackers.
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