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      Le DRM Denuvo d’Hogwarts Legacy enfin cracké

      news.movim.eu / Korben · Friday, 5 April - 09:53 · 2 minutes

    Ça y est, après 6 mois de travail acharné, le développeur Maurice Heumann a réussi un sacré tour de force : craquer la protection Denuvo du jeu Hogwarts Legacy ! Il n’a évidemment pas fait ça pour pirater le jeu à tout va puisque son but était d’en décortiquer les mécanismes pour comprendre comment ça fonctionnait dans les entrailles de la bête Denuvo.

    Du coup, il est resté assez vague sur les détails techniques pour éviter que ça parte en vrille. Mais ce que je peux vous dire, c’est que Denuvo c’est du costaud. Ce DRM utilise tout un tas d’astuces pour vérifier que vous avez bien acheté le jeu en créant une sorte « d’empreinte digitale » de votre PC. Ensuite, un petit ticket Steam est envoyé pour prouver que vous possédez bien le jeu. Ce ticket part direct sur les serveurs de Steam qui vérifient alors que tout est en règle. Une fois validé, un jeton Denuvo est généré, mais attention, il ne marche que sur le PC avec la bonne empreinte !

    Et c’est pas fini puisque pendant que vous jouez, le jeu va régulièrement vérifier cette empreinte pour s’assurer que vous n’êtes pas en train de tricher. Notre ami Maurice en sa qualité de Gryffondor (ou un Serpentard , on ne sait pas trop) a donc réussi à détourner le système après des mois de reverse engineering pour identifier la plupart des vérifications d’empreinte, sans compter sur un coup de bol incroyable qui lui a permis de trouver le dernier déclencheur. Résultat des courses : avec environ 2000 rustines maison, il a pu lancer le jeu sur son laptop en utilisant un jeton généré sur son PC fixe.

    Il a aussi voulu tester si Denuvo ralentissait vraiment les performances, comme beaucoup le pensent. Alors certes, il n’a pas pu faire des benchmarks dans les règles de l’art mais il a regardé à quelle fréquence Denuvo faisait ses petites vérifications.

    Et surprise : les bouts de code Denuvo ne s’exécutent qu’une fois toutes les quelques secondes , ou lors des chargements. Donc pas de quoi fouetter un chat niveau performances. Ça rejoint d’ailleurs ce que Denuvo avait déclaré officiellement. Alors bien sûr, le crack de Maurice n’est pas parfait puisque le jeu plante encore de temps en temps mais son but c’était surtout d’arriver à lancer le jeu et atteindre le menu principal. L’idée une fois encore c’était de comprendre comment ce fameux DRM fonctionnait et il a réussi son coup ! Par contre, ne comptez pas sur lui pour vous donner tous les détails techniques… Un magicien sait garder ses secrets ^^.

    Source

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      Trains were designed to break down after third-party repairs, hackers find

      news.movim.eu / ArsTechnica · Wednesday, 13 December - 22:14 · 1 minute

    Dragon Sector uploaded a video to social media after discovering an "undocumented ‘unlock code’ which you could enter from the train driver’s panel" fixed "mysterious issues" impacting trains in Poland.

    Enlarge / Dragon Sector uploaded a video to social media after discovering an "undocumented ‘unlock code’ which you could enter from the train driver’s panel" fixed "mysterious issues" impacting trains in Poland. (credit: Adam Haertle on YouTube )

    An unusual right-to-repair drama is disrupting railroad travel in Poland despite efforts by hackers who helped repair trains that allegedly were designed to stop functioning when serviced by anyone but Newag, the train manufacturer.

    Members of an ethical hacking group called Dragon Sector, including Sergiusz Bazański and Michał Kowalczyk, were called upon by a train repair shop, Serwis Pojazdów Szynowych (SPS), to analyze train software in June 2022. SPS was desperate to figure out what was causing "mysterious failures" that shut down several vehicles owned by Polish train operator the Lower Silesian Railway, Polish infrastructure trade publication Rynek Kolejowy reported . At that point, the shortage of trains had already become "a serious problem" for carriers and passengers, as fewer available cars meant shorter trains and reduced rider capacity, Rynek Kolejowy reported.

    Dragon Sector spent two months analyzing the software, finding that "the manufacturer's interference" led to "forced failures and to the fact that the trains did not start," and concluding that bricking the trains "was a deliberate action on Newag's part."

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      Netflix sur Google Chrome supporte parfois le 1080p et la 4K, mais personne ne sait pourquoi

      news.movim.eu / Numerama · Friday, 4 August, 2023 - 11:45

    Limitée au 720p pour des raisons de DRM, la lecture de films/séries Netflix dans Google Chrome fonctionne désormais en 1080p, voire en 4K HDR. Google et Netflix n'ont pas encore communiqué sur ce changement. [Lire la suite]

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      Sky Targets Sky Go & Now TV Decryption Key Software as Piracy Wars Continue

      news.movim.eu / TorrentFreak · Thursday, 27 July, 2023 - 18:05 · 4 minutes

    encrypted-lock-s Sky has fought piracy mechanisms of all kinds over the years. From set-top box modifications to viewing card tampering, blocking, even full PC-based emulation, the pay TV company has seen it all.

    Exploits that are relatively easy to pull off and work at scale are considered serious threats. Last month we reported on the sale of Sky encryption keys on platforms including Telegram. That type of thing has been going on for some time, but over the space of a few days, direct URLs to watch Sky content in the UK, Italy, and Germany, were posted online and inevitably began to spread.

    Free Decryption Key Extractors

    This week a related problem was observed by intelligence and investigations company, Kopjra S.r.l . Working as a Sky anti-piracy partner in Italy, Kopjra sprang into action after spotting software uploaded to GitHub by a user who only signed up this month.

    The user account ‘TAJLNsScripts’ was created in early July and currently focuses on video platform-related tools. The first script causing concern at Sky was written in Python and claims to allow users to log in to Now TV via a terminal window, browse the platform’s content, and then obtain decryption keys for both VOD content and live TV.

    A second repository named ‘SkyGo-Drm-Solution’ offered a Python script with features broadly in line with the VOD capability of its Now TV-focused namesake. In order to function, the tool requires users to take an extra step using a specific cookie culled from Sky’s platform.

    While still a concern for Sky, the extra steps and the question of what to do with the keys once obtained, are likely to put off most people from venturing further. For people with a rudimentary understanding of how these things work, nothing here is particularly difficult either.

    The broad underlying concern is that these scripts and others like them exploit a fundamental weakness that a) can’t be easily fixed and b) goes way beyond Sky. It’s a fairly sensitive topic, to put it mildly.

    Kopjra’s Aggressively-Worded DMCA Takedown

    After identifying itself as representing Sky UK, Kopjra informed GitHub via a DMCA notice that the tools allow for the decryption of Sky content otherwise protected by Widevine DRM.

    “This activity is manifestly illicit, and it represents a violation of our Client’s exclusive intellectual property rights (COPYRIGHT) on the Asset, given that our Client has never authorized – neither intends to authorize – any of the Page/s displaying contents concerning the Asset,” the notice reads.

    “In consideration of the above, we formally invite you to immediately remove – within 24 hours of receipt of this letter – the above-mentioned Page/s, to disable access to users and cease any further publishing of any content concerning the Asset on the Page/s.”

    As the image above shows, the scripts in question were uploaded to GitHub roughly three weeks ago. The first and second repo were both created on July 8, approximately six minutes apart. Both had obvious topic tags and were very easy to find from the beginning.

    After being publicly exposed for a considerable time, removing the software was presented as an emergency matter, with Kopjra informing GitHub that anything short of immediate compliance would render the coding platform liable for losses.

    “We bring to your attention that, in case of failure to comply with the above requests, you will be deemed directly responsible for the persisting infringement of our Client’s intellectual property rights as well as for the consequent damages (both economic and non-economic) suffered and that can be suffered in the future,” the notice warned.

    GitHub Removes Software

    The DMCA takedown notice published by GitHub shows that the developer of the software was given an opportunity to make changes to their code, provided with advice on how to submit a counternotice , and directed towards GitHub-supplied legal resources .

    These steps are part of GitHub’s commitment to supporting developers following the attempted takedown of youtube-dl in 2021. The commitment doesn’t imply that GitHub endorses a developer’s work, but the company does believe that coders should have the freedom to tinker .

    What response was received by GitHub, if any, isn’t detailed in the notice , but the end result was both repositories being disabled along with several forks. The developer’s account was not suspended due to the takedown notice, but it now contains just three repos rather than the original five.

    tajlnsscripts-account

    For Sky and its anti-piracy partners, this represents just one of many takedowns filed already this month, mostly hoping to make sites and services much harder to find.

    Continuous DMCA Notices

    Sky has several anti-piracy partners and they are always kept busy tackling various threats. Takedown notices targeting pirate IPTV services, their sales portals in particular, are sent to Google on a regular basis. The strategy includes making numerous claims in respect of different types of infringement.

    For example, notices like these ( 1 , 2 ) claim that infringing links to copyrighted content are provided by the sites in question, but very rarely are any links included in takedown notices. To avoid the notices being rejected, they carry additional claims that the sites display Sky’s logos without permission. Since that’s usually the case and is easily proven, these takedowns can be effective.

    Sky isn’t simply a broadcaster, though, it owns content too. That leads to takedown notices like this which target sites that directly host movies and TV shows, or allow them to be streamed via their platforms.

    Like many similar companies, Sky has to deal with a persistent threat from piracy apps, usually in the form of Android APK files offered on various sites. They are tackled with notices like this , while platforms offering DRM keys are dealt with in broadly the same way .

    Image credit: Pixabay / TheDigitalArtist

    From: TF , for the latest news on copyright battles, piracy and more.

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      Ubisoft : connectez-vous vite à votre compte au risque de perdre vos jeux !

      news.movim.eu / JournalDuGeek · Monday, 24 July, 2023 - 13:30

    template-jdg-19-158x105.jpg Logo d'Ubisoft

    Ubisoft Connect commence à faire le ménage parmi les comptes inactifs : voici ce qu'il faut savoir pour éviter la catastrophe.

    Ubisoft : connectez-vous vite à votre compte au risque de perdre vos jeux !

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      Denuvo wants to convince you its DRM isn’t “evil”

      news.movim.eu / ArsTechnica · Friday, 7 July, 2023 - 19:54

    You have nothing to lose but your chains.

    Enlarge / You have nothing to lose but your chains. (credit: Aurich Lawson | Getty Images)

    Simply mentioning the name "Denuvo" among some gamers is pretty much guaranteed to get you an instant, strong reaction. Just look at the comment threads underneath any Ars article covering Denuvo and you'll see plenty of complaints about the DRM-enhancing anti-piracy technology.

    Irdeto, the company that acquired Denuvo in a 2018 purchase , doesn't generally make a habit of commenting at length on this reputation (or its secretive DRM schemes) in the public press. So when Irdeto Chief Operating Officer of Video Games Steeve Huin agreed to defend his company publicly in an exclusive interview with Ars Technica, I jumped at the chance to talk to him.

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      Hogwarts Legacy a été piraté en seulement deux semaines

      news.movim.eu / Numerama · Friday, 24 February, 2023 - 17:42

    Le jeu vidéo Hogwarts Legacy : L’Héritage de Poudlard a fini par céder. Un crack a été annoncé le 23 février. [Lire la suite]

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      Netflix’s ad-supported plan doesn’t work on Apple TV, “older” Chromecasts, PS3

      news.movim.eu / ArsTechnica · Friday, 4 November, 2022 - 16:22 · 1 minute

    A person's hand holding a TV remote control with a Netflix button.

    Enlarge / Most smart TVs should work with Netflix's new ad-supported plan. Somehow, it's far more powerful, newer devices that may have issues. And the PS3. (credit: Getty Images | Christopher Ames )

    Netflix's newest offering, a $7-per-month "Basic with Ads" plan, comes with inherent compromises : five minutes of ads per hour, one device at a time, no downloads, 720p resolution, and some unavailable content. But there are also a number of device compatibility issues, including on brand-new devices.

    On Netflix's help center page for people encountering the error "Basic with Ads is not supported," Netflix notes that "Basic with Ads isn't supported on Apple TV ." "You'll need to upgrade your Netflix plan to the Basic, Standard, or Premium plan," Netflix advises, or else "use a different device." That last bit links to Netflix's list of officially supported devices , which unhelpfully shows an Apple TV logo with no footnotes or other details about its limitations. Netflix told 9to5 Mac in a statement that Apple TV support is "coming soon."

    The same is true for any Chromecast except the newest model, Chromecast with Google TV . "Basic with Ads is supported only on Chromecast with Google TV," Netflix states, meaning that any model bought before September 2022—like the 4K version Google sold until then— is out of luck.

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      Xbox Series X update allows more discs to be played fully offline

      news.movim.eu / ArsTechnica · Tuesday, 20 September, 2022 - 17:03

    Xbox Series X update allows more discs to be played fully offline

    Enlarge

    Microsoft has quietly updated its Xbox Series X system software to remove the need for a one-time online check in before playing Xbox One discs and certain "Smart Delivery" cross-generation discs.

    When we first wrote about this issue last May , we noted how the Series X hid the download of certain required config files behind a "Getting your game ready..." message during the first load of an affected disc-based game. If the system wasn't connected to the Internet, though, Series X users would be presented with a "This game isn't ready yet" error, completely preventing them from playing their disc-based game.

    Fast forward to last week, when YouTuber Hikkomori Media noticed that the online check-in had apparently been removed. Discs that previously presented an error when run offline can now be installed and played directly from the disc, even if the system has no Internet connection.

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