[Blackhash] Audit Passwords Without Hashes

A traditional password audit typically involves extracting password hashes from systems and then sending those hashes to a third-party security auditor or an in-house security team. These security specialists have the knowledge and tools to effectively audit password hashes. They use password cracking software such as John the Ripper and Hashcat in an effort to uncover weak passwords.

However, there are many risks associated with traditional password audits. The password hashes may be lost or stolen from the security team. A rogue security team member may secretly make copies of the password hashes. How would anyone know? Basically, once the password hashes are given to the security team, the system manager must simply trust that the password hashes are handled and disposed of securely and that access to the hashes is not abused.

Blackhash works by building a bloom filter from the system password hashes. The system manager extracts the password hashes and then uses Blackhash to build the filter. The filter is saved to a file, then compressed and given to the security team. The filter is just a bitset that contains ones and zeros. It does not contain the password hashes or any other information about the users or the accounts from the system. It’s just a string of ones and zeros. You may

view a Blackhash filter with a simple text editor. It will look similar to this:

00000100000001000100001

When the security team receives the filter, they use Blackhash to test it for known weak password hashes. If weak passwords are found, the security team creates a weak filter and sends that back to the system manager. Finally, the system manager tests the weak filter to identify individual users so that they can be contacted and asked to change passwords.

This enables you to audit passwords without actually giving out the hashes.

Pros

• Password hashes never leave the system team.
• Works with any simple, un-salted hash. LM, NT, MD5, SHA1, etc.
• Security auditors do not have to transmit, handle or safe-guard the password hashes.
• Anonymizes the users. The filter contains no data about the users at all.

Cons

• Slower than traditional password cracking methods.
• More complex than traditional password cracking methods.
• Bloom Filters may produce a few false positives (very few in this case).

Download Blackhash: Windows - Linux

[Hashcat v0.47] The world’s fastest CPU-based password recovery tool

Hashcat is the world’s fastest CPU-based password recovery tool.

While it’s not as fast as its GPU counterparts oclHashcat-plus and oclHashcat-lite, large lists can be easily split in half with a good dictionary and a bit of knowledge of the command switches.

Changelog v0.47

• added -m 123 = EPi
• added -m 1430 = sha256(unicode($pass).$salt)
• added -m 1440 = sha256($salt.unicode($pass))
• added -m 1441 = EPiServer 6.x >= v4
• added -m 1711 = SSHA-512(Base64), LDAP {SSHA512}
• added -m 1730 = sha512(unicode($pass).$salt)
• added -m 1740 = sha512($salt.unicode($pass))
• added -m 7400 = SHA-256(Unix)
• added -m 7600 = Redmine SHA1
• debug mode can now be used also together with -g, generate rule
• support added for using external salts together with mode 160 = HMAC-SHA1 (key = $salt)
• allow empty salt/key for HMAC algos
• allow variable rounds for hash modes 500, 1600, 1800, 3300, 7400 using rounds= specifier
• added –generate-rules-seed, sets seed used for randomization so rulesets can be reproduced
• added output-format type 8 (position:hash:plain)
• updated/added some hcchr charset files in /charsets, some new files: Bulgarian, Polish, Hungarian
• format output when using –show according to the –outfile-format option
• show mask length in status screen
• –disable-potfile in combination with –show or –left resulted in a crash, combination was disallowed

Features

• Multi-Threaded
• Free
• Multi-Hash (up to 24 million hashes)
• Multi-OS (Linux, Windows and OSX native binaries)
• Multi-Algo (MD4, MD5, SHA1, DCC, NTLM, MySQL, …)
• SSE2, AVX and XOP accelerated
• All Attack-Modes except Brute-Force and Permutation can be extended by rules
• Very fast Rule-engine
• Rules compatible with JTR and PasswordsPro
• Possible to resume or limit session
• Automatically recognizes recovered hashes from outfile at startup
• Can automatically generate random rules
• Load saltlist from external file and then use them in a Brute-Force Attack variant
• Able to work in an distributed environment
• Specify multiple wordlists or multiple directories of wordlists
• Number of threads can be configured
• Threads run on lowest priority
• Supports hex-charset
• Supports hex-salt
• 90+ Algorithms implemented with performance in mind
• …and much more

Download hashcat v0.47

[HashTag] Password Hash Type Identification (Identify Hashes)

HashTag.py is a Python script written to parse and identify the password hash type used.

HashTag supports the identification of over 250 hash types along with matching them to over 110 hashcat modes (use the command line switch -hc to output the hashcat modes). It is also able to identify a single hash, parse a single file and identify the hashes within it, or traverse a root directory and all subdirectories for potential hash files and identify any hashes found.

One of the biggest aspects of this tool is the identification of password hashes. The main attributes used to distinguish between hash types are character set (hexadecimal, alphanumeric, etc.), hash length, hash format (e.g. 32 character hash followed by a colon and a salt), and any specific substrings (e.g. ‘$1$’). A lot of password hash strings can’t be identified as one specific hash type based on these attributes. For example, MD5 and NTLM hashes are both 32 character hexadecimal strings. In these cases the author made an exhaustive list of possible types and has the tool output reflect that.

It has three main arguments:

• Identifying a single hash type (-sh)
• Parsing and identifying multiple hashes from a file (-f)
• Traversing subdirectories to locate files which contain hashes and parse/identify them (-d)

Usage:

HashTag.py {-sh hash |-f file |-d directory} [-o output_filename] [-hc] [-n]

Download HashTag

[Hashcat v0.46] Multi-Threaded Password Hash Cracking Tool

hashcat claims to be the world’s fastest CPU-based password recovery tool, while not as fast as GPU powered hash brute forcing (like CUDA-Multiforcer), it is still pretty fast.

hashcat was written somewhere in the middle of 2009. Yes, there were already close-to-perfect working tools supporting rule-based attacks like “PasswordsPro”, “John The Ripper”. However for some unknown reason, both of them did not support multi-threading. That was the only reason to write hashcat: To make use of the multiple cores of modern CPUs.

Granted, that was not 100% correct. John the Ripper already supported MPI using a patch, but at that time it worked only for Brute-Force attack. There was no solution available to crack plain MD5 which supports MPI using rule-based attacks.

Hashcat, from its first version, v0.01, was called “atomcrack”. This version was very poor, but at least the MD5 kernel was written in assembler utilizing SSE2 instructions and of course it was multi-threaded. It was a simple dictionary cracker, nothing more. But it was fast. Really fast. Some guys from the scene become interested in it and after one week there were around 10 beta testers. Everything worked fine and so requests for more algorithm types, a rule-engine for mutation of dictionaries, a windows version and different attack modes were added. These developments took around half a year, and were completely non-public.

Features

• Multi-Threaded
• Multi-Hash (up to 24 million hashes)
• Multi-OS (Linux, Windows and OSX native binaries)
• Multi-Algo (MD4, MD5, SHA1, DCC, NTLM, MySQL, …)
• SSE2, AVX and XOP accelerated
• All Attack-Modes except Brute-Force and Permutation can be extended by rules
• Very fast Rule-engine
• Rules compatible with JTR and PasswordsPro
• Possible to resume or limit session
• Automatically recognizes recovered hashes from outfile at startup
• Can automatically generate random rules
• Load saltlist from external file and then use them in a Brute-Force Attack variant
• Able to work in an distributed environment
• Specify multiple wordlists or multiple directories of wordlists
• Number of threads can be configured
• Threads run on lowest priority
• Supports hex-charset
• Supports hex-salt
• 80+ Algorithms implemented with performance in mind

Detailed documentation and command line switches can be found here – hashcat.

Download Hashcat v0.46

[JBrute] Open Source Security tool to audit hashed passwords

JBrute is an open source tool written in Java to audit security and stronghold of stored password for several open source and commercial apps. It is focused to provide multi-platform support and flexible parameters to cover most of the possible password-auditing scenarios.

Java Runtime version 1.7 or higher is required for running JBrute.

Supported algorithms:

• MD5
• MD4
• SHA-256
• SHA-512
• MD5CRYPT
• SHA1
• ORACLE-10G
• ORACLE-11G
• NTLM
• LM
• MSSQL-2000
• MSSQL-2005
• MSSQL-2012
• MYSQL-322
• MYSQL-411
• POSTGRESQL
• SYBASE-ASE1502
• INFORMIX-1170

Dowload JBrute

[Hash Console v1.5] All-in-one Command-line tool to generate hash md5, sha1, sha256, sha384, sha512, lm, ntlm, base64, crc32, rot13

Hash Console is the all-in-one command-line based tool to quickly generate more than 15 different type of hashes. It can generate hash for any given file or simple text.

Hashes or checksums are used for multiple purposes including file integrity verification, encryption, password storage etc. Hash Console help you easily and quickly quickly computing the hash for given file or text.

Currently it supports following popular hash types

• MD5 family (md2, md4, md5)
• SHA family (sha1, sha256, sha384, sha512)
• BASE64
• ROT13
• CRC32
• ADLER32
• HAVAL256
• LM
• NTLM
• RIPEMD160
• WHIRLPOOL

Being a command-line tool makes it ideal for automation and easy to use on remote systems.

 Download Hash Console v1.5