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Password Analysis

Password Analysis

Passwords remain key to maintaining security within today’s digital world as a result of the continued drive towards a paperless and possibly cashless society. Whether at home or work, there is an increase in the number of hours being spent on-line; whether shopping, banking or communicating with others either professionally or socially.  As a consequence, the number of times a user’s authentication is required has also mushroomed.  Placing even more reliance on the quality of the humble password.

CCC have frequently found password policies being deployed, without really understanding the level of security provided or what may in fact be required, to be effective.  A view often taken is that of a belt and braces approach, based purely on theory.  The longer and more complex a password is, the more secure it should be.  To a degree this approach may be true, but if taken too far can be counterproductive, due to its complexity or the frequency of change.  Certainly, having an adverse effect with passwords becoming difficult to remember.  Hence, they get written down or patterns begin to be used.  Which, while complying with policy, increase the risk of detection.
Examples of passwords using monthly patterns which would all be detected fairly quickly, could be:

Examples
  • JanuaryPassword@work01
  • FebrauryPassword@work02
  • MarchPassword@work03

Consequently, employees by nature try to find other ways to circumvent policy.  Password analysis can help prevent this, by determining the correct levels of complexity and life needed for compliance.

“The definition of a good hack is that, nobody knows it’s happened…”
And, having a weak password, could just be the reason…

Other areas where password analysis may be considered are:
As part of a comprehensive review, or

  • On a standalone basis, as a result of an investigation or incident

CCC, can offer a variety of password analysis services, designed to specifically meet individual requirements.

For more information on password analysis or to make a submission
Password Decryption

The continuing evolvement of decryption tools and techniques has meant that password decryption or cracking tools and methodologies have significantly advanced in recent years.

Which is primarily due to:

  • The exploitation of GPU processors:
    • First of all, they considerably increase the number and complexity of hashes that can be tested in a reasonable amount of time.
    • While, reducing the cost of equipment, at the same time.
  • The use of distributed systems for testing
    – Increasing processing power, still further.
  • Key space manipulation
    – Allowing for multiple types of attack to be undertaken, while prioritising the more likely passwords.
    – Combining words or parts of words with random sequential characters  and ranking the results ahead of sequential lists running through an arbitrary character set.
    These types of attack include:

    • Dictionary
    • Rule Based
    • Hybrid – Combining dictionary with rules

Leaving only brute-force attacks to be finally tried, should none of the others succeed.

Poor passwords
password analysis | CCC | Computer Crime Consultants

Set out below are a random sample of passwords decrypted during a recent exercise, using a standard rig with a bespoke character set.

These passwords having been automatically created, using a poorly constructed password generator, that was almost certainly not tested or subjected to any form of validation process.  The passwords created are obviously difficult to memorise and therefore difficult to use effectively.  Consequently, they are counterproductive and present additional risk.

 

  • m@K&\\_\\&KR0s
  • @!M@n0r25
  • er368103#arbor@>Du
  • [eqcjcfkbrjv,fqy`hs
  • t11n27l8467c3bc6cc59f6168313233343536373839
  • qazxswedcvfrtgbnhyujm,kiol./;p
  • astıronomi
Tools and Techniques

For this reason, CCC have developed a series of in-house applications and approaches, aimed at testing and evaluating passwords and their policy.

A wide range of algorithms are available for testing, some of the more common include:

  • WPA*
  • NTLM
  • MD5*
  • SHA*
  • MacOS*
  • Samsung
  • MS Office*
  • PDF*
  • WinZip

For a complete list of available algorithms, please call +44 (0) 1529 306284 or email. hash@ccc-ltd.com

Once set up, our programs and processes have been designed to automatically undertake testing on a client specific basis.  Increasing in the degree of difficulty, so at to determine a break point.  Sequencing and testing can be modified to cater for any additional or specific needs.

Testing can also be undertaken blind, where no target specific information is applied or where information harvested form a variety of sources is used for seed purposes.  Replicating the steps an  attacker would typically undertake.

At the conclusion of testing, a report would be provided, and any hashes or passwords decrypted are ‘wiped’ from all systems using ‘DoD 5220.22-m 7 pass’ standard tools.

CCC would be happy to comply with any confidentiality agreements that may be required.

For more information on password analysis or to make a submission

Our expertise and experience, uniquely combines electronic forensic skills, with an understanding of corporate finance.

Asset Tracing – Audit – Computer Security – Digital Forensics – Due Diligence – eDiscovery – Fraud Investigation

Intelligence Gathering -Passwords Analysis – Penetration Testing – Wireless Security

Services underpinned with expertise and experience.