Open Source C Brute Force Tools

Ophcrack is a Windows password cracker based on a time-memory trade-off using rainbow tables. This is a new variant of Hellman's original trade-off, with better performance. It recovers 99.9% of alphanumeric passwords in seconds.

VeraCrypt is a free disk encryption software brought to you by IDRIX (https://www.idrix.fr) and based on TrueCrypt 7.1a. It adds enhanced security to the algorithms used for system and partitions encryption making it immune to new developments in brute-force attacks. It also solves many vulnerabilities and security issues found in TrueCrypt. This enhanced security adds some delay ONLY to the opening of encrypted partitions without any performance impact to the application use phase. This is acceptable to the legitimate owner but it makes it much harder for an attacker to gain access to the encrypted data. All released files are PGP signed with key ID=0x680D16DE, available on key servers and downloadable at https://www.idrix.fr/VeraCrypt/VeraCrypt_PGP_public_key.asc VeraCrypt can mount TrueCrypt volumes. It also can convert them to VeraCrypt format. Documentation: https://www.veracrypt.fr/en/Documentation.html FAQ : https://www.veracrypt.fr/en/FAQ.html

Number one of the biggest security holes are passwords, as every password security study shows. This tool is a proof of concept code, to give researchers and security consultants the possibility to show how easy it would be to gain unauthorized access from remote to a system. There are already several login hacker tools available, however, none does either support more than one protocol to attack or support parallelized connects. It was tested to compile cleanly on Linux, Windows/Cygwin, Solaris, FreeBSD/OpenBSD, QNX (Blackberry 10) and MacOS. However the module engine for new services is very easy so it won't take a long time until even more services are supported. Via the command line options you specify which logins to try, which passwords, if SSL should be used, how many parallel tasks to use for attacking, etc. PROTOCOL is the protocol you want to use for attacking, e.g. ftp, smtp, http-get or many others are available.

Flipper Zero Unleashed Firmware. This software is for experimental purposes only and is not meant for any illegal activity/purposes. We do not condone illegal activity and strongly encourage keeping transmissions to legal/valid uses allowed by law. Also, this software is made without any support from Flipper Devices and is in no way related to the official devs.

Bruter is a parallel network login brute-forcer on Win32. This tool is intended to demonstrate the importance of choosing strong passwords. The goal of Bruter is to support a variety of services that allow remote authentication.

SSHGuard protects hosts from brute-force attacks against SSH and other services. It aggregates system logs and blocks repeat offenders using several firewall backends, including iptables, ipfw, and pf.

A multithreaded opensource password cracker

Brute is a brute force hash cracker, it allows the user to specify how many threads he want running simultaneously. It is fast, and modular, all the hash algorithm dependent code lies in a module (a shared library). Modules available: MD5; SHA256; SHA512

BRUTALIS - BRUTeforce ALternative Is Stupid. Brutalis generate brute force passwords. It can be integrated in any command line for an attack and support resume, character panel, minimum and maximum length, special separating characters and more.

Blaster Scan is a TCP port scanner. It can extract users exploiting vrfy or expn, check anonymous access on FTP, check brute force on FTP and POP3, extract daemons\' versions, and scan for CGI bugs. It also has a SYN port scan, the ability to ping hosts t

An original bruteforce-based encryption/decryption system. BBE was originally conceived to chat with encrypted text on IRC. mIRC and X-Chat support BBE via script addon. BBE can also encrypt MIME encoded files. Blowfish encryption is currently supported.

Bruteblock allows system administrators to block various bruteforce attacks on UNIX services. The program analyzes system logs and adds attacker's IP into IPFW table effectively blocking them. Addresses are removed from the table after expiration period

BruteNet is a system of the distributed brute force and distributed calculations built on user extensions capable to solve a great number of problems related to the partition on a lot of machines.With sample extention you can distribute brute md5-hash

The program uses a number of processes to brute-force crack MD5 hashes. MD5 brute-force cracking involves hashing all possible strings and each time compare the obtained hash to the one we are trying to crack

Disk Optimizer selects files to be placed on any disk medium that will maximize the space used. It is very efficient in finding an optimum file set since it uses a Genetic Algorithm instead of brute force.

The John Darm project aims at developping a software that can tests a brute force attack on weak UNIX passwords. It s a multi-client application that dispatches the calculations between the different clients.

Balacing a chemical equation using the Laplace's rule to solve a system of linear equations or using the brute-force method. Khembalancer 2.5.5 received the "100% Free" award and that means Khembalancer does not contain any viruses, spyware, trojans and backdoors. For more information see: http://www.softpedia.com/progClean/Khembalancer-Clean-207422.html

NBTView is a 'NetBIOS Swiss Army Knife' written in C, and usable under several UNIX-like systems. NBTView allows you to passively monitor NetBIOS intelligence (users logged in, shares, etc.), run queries against machines, and brute-force share passwords.

ParamIT is a toolkit aiding the development of molecular mechanical force field parameterization of small, drag like, molecules within CHARMM general force field (CGenFF) protocol. The developed toolkit helps the researchers in following ways: 1) automating the creation of multiple input files for quantum and molecular mechanics programs, 2) automating the output analysis and 3) substitute the use of full MM programs with a faster specialized one. The developed tools include: 1) generator of molecule-water complexes with graphical user interface (GUI), 2) semi-automatic frequency analysis using symbolic potential energy distribution matrix and comparison of optimized internal coordinates, 3) GUI for charge fitting with three modes: manual, Monte-Carlo sampling or brute force, and 4) GUI for dihedral terms fitting. The usage of these tools decreases the labor effort, lowers manual input errors and reduces the time needed for accurate MM parameterization efforts.

This project considers the problem of calculating primes as a sorting problem. It includes the most efficient tree-based sorting algorithm that is possible and shows that finding a new prime can be done by sorting the differences between the previous primes in the right way. Unfortunately it has turned out that going this way is even more slowly than trying to find primes by brute force. So it can only be used as a test with heavy load for the sorting algorithm, which can be used for sorting any kind of data. And as already mentioned, it's just the most efficient tree-based sorting algorithm that you can get. But furthermore this way of finding primes interestingly leaves a hard nut to crack for mathematicians: In very rare cases it finds numbers that are not primes. For all primes below one million this phenomenon arises in exactly two cases: 31213 which is 7 * 7 * 7 * 7 * 13 336141 which is 3 * 3 * 13 * 13 * 13 * 17 Who can explain, why?

Valkyries is a parallel programming project designed for and developed on a Beowulf cluster to crack several UNIX systems' passwords by brute-force. Currently implemented system cracks only numerical passwords but it's being developed.

brutesshd is an application written in c/php in order to prevent bruteforce attacks through ssh. Brutesshd uses iptables/pfctl tools to block this type of attacks

dkbf is a distributed, keyboard, brute-force program for Linux clusters that attacks Windows NT Lanman and NT hashes using the Message Passing Interface (MPI).

Strength in numbers. Existing products we're involved in include port to Linux of Tony Forbes' MFAC for brute-force factorization of MM61 for relatively small factors, and further development and improvement of Tim Charron's ECMnet distributed computing f

Program for brute force recovering a Oracle password hash. This is my first ever Linux program(after some hello world programs) Still learning how to program C