#F SECURE 2015 HOW TO#
#F SECURE 2015 CRACKED#
#F SECURE 2015 CODE#
#F SECURE 2015 PASSWORD#
#F SECURE 2015 SERIES#

After obtaining promising results with a relatively small dictionary, a natural next step perhaps is to increase the size of the wordlist and re-run the same attack.

#F SECURE 2015 CRACKED#

The wordlist has successfully cracked 22542/548686 hashes (4%) of battlefield in a few of seconds. After running hashcat against the battlefield hashes the results shown below should be obtained. The -o flag tells hashcat to write the results of an attack to a file. The next argument should be the location of the wordlist that is to be used. A comprehensive list of all of the algorithms that hashcat supports can be obtained by running. The -m flag informs hashcat of which hashing algorithm to use. hashcat-cli64.bin -m 0 bfield.hash phpbb.txt -o plain_wordlist_results.txt

#F SECURE 2015 PASSWORD#

After downloading the wordlist, password hashes and hashcat, a simple attack can be launched using the following command (assuming a 64bit architecture is being used). Wordlist, Go!Д«efore adding rules to the attack, an attack against the hashes using solely the wordlist can be performed. A good candidate for this wordlist is phpbb.txt as it contains a number of common passwords and is relatively small in size. This allows us to develop techniques against real world list of passwords that does not put the users of the application at risk. Since then, the users of the website have had to change their passwords and the password hashes are not associated with user accounts. Throughout the series, these leaked MD5 hashes are going to be used to practice against as a case study to practice the techniques discussed in this series. This information was subsequently published online by the attacker(s).

The attackers gained access to the Battlefield Heroes database which contained user profile information including usernames and password hashes. The Battlefield Heroes website was compromised in 2013. In the interests of simplicity, a single wordlist will be used.

#F SECURE 2015 SERIES#

The wordlist that will be used throughout the series is phpbb.txt which is available here 6вЂЉ. In order to follow along with the series, download the Battlefield password hashes from here 5вЂЉ. Wordlists are readily available online, but the best wordlists are typically oneвЂ™s that are developed and tuned over time by a password cracker. Wordlists and rules are, in many cases, the backbone of a password crackers attack against passwords. Either tool can be used in following along with this series, although if it does interest you, you can take a look at discussions such as this one with regard to the performance of each tool 4. There are a number of alternative password cracking tools available, such as John The Ripper that can be used in similar ways, however, hashcat exists as the mainstay of MWRвЂ™s password cracking arsenal. PACK is a set of tools developed by Peter Kacherginsky to perform analysis on sets of cracked passwords and use this analysis in attacking password hashes in the future. Hashcat utils contains a number of tools that allow for some more complex and interesting techniques to be used to crack passwords that will be discussed in later posts in the series.

#F SECURE 2015 CODE#

Hashcat is free, but the development team headed up by Jens вЂ™atomвЂ™ Steube has decided to keep the code base for it proprietary. Hashcat is a tool that provides an extremely efficient way to convert plain text collections of characters into their hashed equivalent. This list is not comprehensive, but covers most of the password cracking that MWR does. There are three sets of tools MWR uses to crack passwords.

#F SECURE 2015 HOW TO#

Furthermore, this post will describe how to write password cracking rules and test these rules empirically. It will explain why in general, opting for a targeted more efficient ruleset over increasingly large dictionaries can yield better results. This post will focus on rule based attacks against passwords. In addition to the techniques covered in this post, the series will cover: The aim of this series is to describe some of the techniques that MWR has found to be effective at cracking both enterprise level and consumer passwords. Cracking passwords is an important part of penetration testing, in both acquiring and escalating privileges. This post is the first in a series of posts on a вЂњA Practical Guide to Cracking Password HashesвЂќ.

F secure 2015