May 8, 2017

BruCON 0x09 Ticket sales have started!

The ticket sales for BruCON 0x09 has started.
During 1 month you can buy a limited amount of early bird tickets for a discounted price, get them while they are available!
You can find all our ticket types on: https://registration.brucon.org/conference-registration/
We are working hard on reviewing all CFP submissions and we will give you an update before 15/06 for the talks and workshops.

Mar 1, 2017

BruCON 0x09 CFP/CFT Announcement

This is the Call for Papers (CFP) for talks and workshops and Call for Training (CFT) for the 9th edition of BruCON. 

On the off chance you don't know BruCON (where have you been?). We host a 2-day Security and Hacking Conference full of interesting presentations, workshops and security challenges for about 600 attendees. BruCON is an open-minded gathering of people discussing computer security, privacy, and information technology. The conference tries to create bridges between the various actors active in the computer security world including (but not limited to) hackers, security professionals, security communities, non-profit organisations, CERTs, students, law enforcement agencies, and many more. Next to the conference we offer several world-class, deep-dive mostly offensive technical training courses given by the most recognised experts with huge industry experience in their domain! These training sessions take place twice a year, Spring Training takes places on 19, 20 and 21st of April 2017 (Registration and line-up here) and conference training tracks are on 2, 3 and 4th October 2017. Our slogan is "Hacking for Beer" of which you'll find plenty during and after the conference.

The conference will be held in Ghent on the 5th and 6th of October 2017. The training sessions will be held from 2nd until 4th of October 2017 (all courses start on the 2nd!).

[CONFERENCE]
Topics of interest for the conference include, but are not limited to :
  • Electronic/Digital Privacy
  • IoT Security
  • Wireless Network and Security
  • Attacks on Information Systems and/or Digital Information Storage
  • Web Application and Web Services Security
  • Lockpicking & physical security
  • Honeypots/Honeynets
  • Spyware, Phishing and Botnets (Distributed attacks)
  • Hardware hacking, embedded systems and other electronic devices
  • Mobile devices exploitation, Symbian, P2K and bluetooth technologies
  • Electronic Voting
  • Vulnerability research and disclosure
  • Free Software and Security
  • Legal and Social Aspect of Information Security
  • Software Engineering and Security
  • Security in Information Retrieval
  • Security aspects in SCADA, industrial environments and "obscure" networks
  • Forensics and Anti-Forensics
  • Mobile communications security and vulnerabilities
  • Information warfare and industrial espionage
  • Social Engineering
  • Virtualisation Security
  • ...
Possible formats are:
  • 1hr talk
  • 2hr workshop (preferably hands on)
  • 4hr workshop (preferably hands on)
If you want to get an idea about the atmosphere at BruCON, check out the previous talks on our Youtube channel

[TRAINING]
Please take into account the following guidelines : 

  • BruCON hosts predominantly offensive technical security training sessions. We don't have any specific focus areas for now, so please submit any training you deem interesting !
  • Training should be either 2 or 3 days with a preference for the latter.
  • You are allowed to submit multiple training suggestions, however please specify if they can be hosted simultaneously.
  • If you have additional hardware that need to be taken into account, please specify including the additional costs.
If you submit a training, please include, at minimum, the following information : 
  • Description
  • Course content
  • Target audience
  • Level (Beginner, Advanced, Expert)
  • Trainer(s) Biography
  • Hosted before? If so, where and when
Possible formats are:
  • 2-day training (1100 € Early-bird / 1200 € Regular)
  • 3-day training (1400 € Early-bird / 1500 € Regular)

[SUBMISSION GUIDELINES]
Submissions will contain as much detail as possible and will be written in English.
We use EasyChair to collect and review talk, workshop and training proposals.
You will submit your proposal online: https://www.easychair.org/conferences/?conf=brucon0x09
Your submission will contain at least the following details:
  • Your name
  • Where do you live (country)
  • How to reach you
  • The title of your talk/workshop/training, including type [talk|2h workshop|4h workshop|2 day training|3 day training]
  • An abstract of your talk/workshop/training, including a brief biography
  • A number of keywords to characterise your submission
  • Whether you submitted and/or presented this proposal at other conferences, and which
  • Additionally you are encouraged to include, in plain text or PDF format, supporting materials such as slide decks, white papers, curriculum, prerequisites for talk/workshop/training, outline,...
Our speaker treatment hasn't changed since the first year. You're our guest and we will do anything to make your stay and experience as enjoyable as possible. This includes helping you with travel and accommodation and providing ample opportunities to sample the best of whatever Belgium has to offer. You know what we're talking about so ... submit now!

This CFP closes on April 30th 2017 at midnight CET -- CFP feedback will be sent before May 30th 2017. All accepted talks and workshops will be published before June 15th 2017.

Small print: We do not accept product or vendor related pitches. If your presentation involves an advertisement for a new product or service your company is offering, please do not submit. Also, we do not accept presentations submitted by a third party including (but not limited to) company representatives, management bureau's, etc. BruCON presentations should be focused on topics that are of interest to security and technology professionals who are paying attention to current trends and issues. We want BruCON to be educational and entertaining to the attendees and the community.

Feb 27, 2017

Training Teaser - Windows AppLocker bypass

In this short teaser, we want to demonstate a simple AppLocker bypass. AppLocker, which will be the main focus of the ‘Windows Breakout’ (Day 1) section of the BruCON spring training, is the de-facto standard for locking down Windows machines in an enterprise environment.

It is the successor to SRP (Software Restriction Policies) and allows definition of fine-grained rules to allow or deny execution based on the path, file hash or publisher of the executable or script.
For this post, let us consider a scenario where the system administrator of a company has deployed the following AppLocker rules on all company machines through Group Policy:


The executable rules permit Administrators to run anything, while users which are part of the 'Employees' group are only allowed to run Microsoft signed binaries, with a few exceptions.

The explicitly-blocked binaries are the usual suspects; each of them would allow users to run arbitrary commands on their corporate machine if not blocked by AppLocker. The training course will go into detail on how to attaining code execution through regsvr32, rundll32 and InstallUtil.
The aim of this exercise is to run PowerShell and subsequently launch any binary on this box, such as a Meterpreter reverse shell.

Trying to run PowerShell directly is a no go:


Even though the publisher information matches an 'Allow' rule in AppLocker, it is explicitly denied by path. 'Explicit Deny' takes precedence over 'Explicitly Allow' in AppLocker. 

If we look closer at the rules, we can see that the offending rule is applied on the path of the binary and hence moving it to another location, such as the Desktop, would invalidate the rule and allow execution:

Easy right? The next step is to run any executable with the help of Powershell. At this point we could either beg Microsoft to sign our Meterpreter reverse shell or use the Invoke-ReflectivePEInjection PowerShell script, which is part of PowerSploit, to reflectively load our executable in memory and execute it that way. 

This time we'll go for the latter. Transfer the Meterpreter reverse shell to the box and run the following commands:


The result is a complete bypass of this AppLocker policy:



This is just a taste of what we'll be covering during the 'Windows Breakout' section of this 3-day training course. 

In addition to this we'll be going through Windows Privilege Escalation and UAC Bypasses. For a more complete overview as well as registration information, please visit this page

BruCON Spring Training is hosted on 19,20 and 21 April 2017 at the Novotel Ghent Centrum in Belgium.  http://2017.brucon.org

See you there!!



Feb 10, 2017

Training Feedback - What we have learned from you !

After each training, we invite our students to complete a feedback form and provide us some input and honest opinions on how we can further improve the BruCON training experience.

On average about 70% of student typically complete the survey and a majority of them go beyond the rating scale and provide us detailed feedback and areas with room for improvement.

So what have we learned so far ? 



There have been an number of issues in the past with the hotel wireless network. That being said, we aim to provide you a standard solid internet connection that allows you to do your research and check your emails and not for heavy downloading. The hotel has improved and upgraded the wireless network since last BruCON. During Spring Training 2017 in April, we'll evaluate the progress and if required we'll be deploying our own wireless (or even wired) network in October once again.



When it comes to food, there is no such thing as pleasing everybody. We've tried different approaches in the past, but as of this year, we'll be going back to a buffet format with cold starters and a choice of three warm main courses (meat, fish and vegetarian). To speed things up, the classes will again be split into two groups giving you more free time during the lunch break.






After a long day of absorbing the sweet security goodness (and possibly frustrations ;-) ) you get during your training, you deserve some time off. And what would be better then having a beer together with your fellow students, after all, BruCON's slogan is still "hacking for beer". After the second day of training, we will be inviting you for a drink in the hotel bar. The first one is on us ! 




Check out our Spring Training 2017 lineup (19-21 April) here
If you want to share with us some other feedback, you can contact us on Twitter or via email at training@brucon.org