CTF日本語サイト : Pwn2Win CTF 2016 writeup Skycast

Skycast:

Points: 10

Category: Story

Description:

"The Club - The Power Behind the Scenes"

English:

It all started in the 60s and 70s when there was still hope - when there was no Project SKY-80:37...
A small number of the most senior officers from the Brazilian military were unsatisfied with the way their country was being run and decided to create a secret organisation called the "Marble Club" (the original term was born on this occasion, and was used by a presenter later). This club had two main aims; to oust the existing dictatorship and subsequently become the political leaders of the country themselves. The Mentor (sometimes known as 'Fideleeto') set up meetings which were also attended by honorary members and the intellectual elite. Those who were away participated in the meetings via telephone (being a common device at the time).
The Club's rule was absolute, freedom of expression was not allowed and censorship was a core part of their ambitious plans. With their conspiracy beginning to take shape the next task was to establish an idea to use as an excuse for their existence - to try to avoid any 'reluctance' the general population may have about a regime change. The rally cry chosen was "For the defence of national security".
In the period following the regime change, the Club attempted to exert extreme control of the media. This later became known as the "buckshot period." The people however were not so easily fooled and the saying "Brazil, Love it or leave it" became a common catchphrase. Many left the country out of despair and disgust. The "buckshot period" was deemed to be unsuccessful and so the Club started devising more effective strategies to maintain their grasp on power. The approach they settled on was reverse tactics and avoid the use of force directly against the media. Instead they decided they would create and maintain the illusion of a democracy. They declared that one of their members, a "General Peixel", would be chosen as their puppet successor who would slowly set up a pseudo-democracy in the country to placate the opposition. Taking his orders from the Club, General Peixel announced the end the existing government and that elections would be held. This was just the first step. Brazil needed to rescue their exiled talented people so an amnesty law was created. "You need educated citizens but still gullible", said Mentor at a meeting of the Club.
However, even as direct elections were already being celebrated in the streets, the Club was studying and devising ways to have the appearance of a legitimate choosing of political representatives as voted by the the people, but without losing the traditional control that already had over the country. That's when the idea arose of Electronic Ballots, which began to be studied further in the 80s.
Also in the early 80s, a group called Project SKY-80:37 was formed by students (PhD) of Brazilian universities, initially with the aim of peaceful street protests organized by BBSs. The government repression was still in effect against this type of activity so no one was willing to take a leadership role. As a result the groups overt actions were few in number. However the thirst for change country was great meetings held frequently, and a new approach emerged: using knowledge to attack the root problem.
In the 90s, after the return of direct elections, and with the a new puppet government in place, the Club met again with their advisers (including Mentor). Here is a rough translation from the meeting transcript, recorded with the help of a voice recorder created by a member of the Project and left in place the day before the meeting:
"You need to do something I never do, but it will be necessary for the course in Brazil remain in our tracks. These Electronic Booths which have proven to be reliable, that is, easy to tampering, according to reports. The big secret for the popularization is to invest in marketing, through the image that is safe".
At that meeting, the original idea of media censorship was again discussed, and again this time the approach was different. The Club realized that partnering with major media outlets to filter the information that suited them would be much more effective than punishing those that dared stand up to them, and would also benefit both sides.
The electronic voting booths were deployed and media partnerships negotiated. Election after election the people were unwittingly at the mercy of the Club's wishes, seeing only what they were allowed to see, doing exactly what The Club want them to do. The only spark of hope was called Project SKY-80:37.
My friends - we are here now fighting for a decent country using the biggest weapons we have: knowledge, hacking, and courage! Thanks to many old school friends (some still are active) who formed this group, we can get up and shout our cry of freedom because we are still alive and we will not be silenced.
We still have much to learn. We had the idea of broadcasting this message. We need your help in some missions. We have a lot of 'raw' information about the Club and its activities that still need to be 'processed' quickly in order to be useful for us, for the people of Brazil and for the establishment of a real democracy.
This message was sent by SKYcast, only a select group of hackers can read it. We welcome those privileged few. I hope you can help us.
"For every action there is a reaction, we are the resistance, and the last resort." SKYbit89

Confirm receipt of the message by sending back "CTF-BR{SKYcast_recebido_e_lido}".

Greetings, SKYpitain82.