VB2015 'Steganoprague' competition

Posted by   Virus Bulletin on   Sep 30, 2015

Use your steganography-detection skills and win a pile of books.

As VB2015 is about to begin, we announce the second part of the 'Steganoprague' competition. In this part, you will have to find URLs hidden by others inside an image provided by us.

The puzzle can be played by anyone, but if you are attending VB2015, you can win seven books on computer security. The winner will be the person who finds the greatest number of URLs or, if people find an equal number of URLs, the person who does so in the shortest time.

Once you've found a URL, send it by email to martijn.grooten@virusbtn.com. The deadline for the competion is 12:30 Prague time on Friday. The winner will be announced during the closing address later on Friday.

Please see the description of the puzzle for the rules and for the original image.

The three images for the competition are:

PNG; SHA-1: ff96d20efe4fe1da5b86da738da43e39095c5059.

PNG; SHA-1: a4fe069f1da8b994d6a08324007832bb06cd0e0c.

JPG; SHA-1: cd556ab30d0318bb317d675eb30859e5c7a83b5c.

Moreover, the following two images are not part of the competition, but still have URLs hidden inside them following the same rules:

PNG; SHA-1: c78130955c03dd460b8b4cf4eb5efce0c45b003e.

PNG; SHA-1: 820135aa5bd0b55c7919cc233f5c41639ccbfad9.

Posted on 30 September 2015 by Martijn Grooten



Latest posts:

VB2019 paper: Operation Soft Cell - a worldwide campaign against telecommunication providers

Today we publish the VB2019 paper by Cybereason researchers Mor Levi, Amit Serper and Assaf Dahan on Operation Soft Cell, a targeted attack against telecom providers around the world.

VB2019 paper: A study of Machete cyber espionage operations in Latin America

At VB2019 in London a group of researchers from the Stratosphere Lab at the Czech Technical University in Prague presented a paper in which they analysed and dissected the cyber espionage activities of an APT group in Latin America through the…

VB2019 paper: The push from fiction for increased surveillance, and its impact on privacy

In a paper presented at VB2019 in London, researchers Miriam Cihodariu (Heimdal Security) and Andrei Bogdan Brad (Code4Romania) looked at how surveillance is represented in fiction and how these representations are shaping people's attitudes to…

VB2019 paper: Oops! It happened again!

At VB2019 in London industry veterans Righard Zwienenberg and Eddy Willems took a detailed look at the relationship between past and current cyber threats. Today, we publish both their paper and the recording of their presentation.

Job vacancy at VB: Security Evangelist

Virus Bulletin is recruiting for a person to be the public face of the company

We have placed cookies on your device in order to improve the functionality of this site, as outlined in our cookies policy. However, you may delete and block all cookies from this site and your use of the site will be unaffected. By continuing to browse this site, you are agreeing to Virus Bulletin's use of data as outlined in our privacy policy.