{"id":104646,"date":"2023-02-19T13:04:00","date_gmt":"2023-02-19T13:04:00","guid":{"rendered":"https:\/\/fr.cryptonews.com\/?p=105349"},"modified":"2023-06-26T11:06:44","modified_gmt":"2023-06-26T11:06:44","slug":"blocktower-capital-perd-15-million-de-dollars-suite-au-piratage-de-dexible","status":"publish","type":"post","link":"https:\/\/cryptonews.com\/fr\/exclusives\/blocktower-capital-perd-15-million-de-dollars-suite-au-piratage-de-dexible\/","title":{"rendered":"BlockTower Capital a perdu 1,5 million de dollars dans le cadre du piratage de Dexible"},"content":{"rendered":"<figure class=\"image\"><img decoding=\"async\" src=\"https:\/\/cimg.co\/news\/105349\/257816\/crypto-hacker-media-library-original-5760-3840.jpeg\" srcset=\"https:\/\/cimg.co\/news\/105349\/257816\/responsive-images\/crypto-hacker-media-library-original-5760-3840___media_library_original_5760_3840.jpeg 5760w, https:\/\/cimg.co\/news\/105349\/257816\/responsive-images\/crypto-hacker-media-library-original-5760-3840___media_library_original_1200_800.jpeg 1200w, https:\/\/cimg.co\/news\/105349\/257816\/responsive-images\/crypto-hacker-media-library-original-5760-3840___media_library_original_900_600.jpeg 900w, https:\/\/cimg.co\/news\/105349\/257816\/responsive-images\/crypto-hacker-media-library-original-5760-3840___media_library_original_720_480.jpeg 720w, https:\/\/cimg.co\/news\/105349\/257816\/responsive-images\/crypto-hacker-media-library-original-5760-3840___media_library_original_600_400.jpeg 600w, https:\/\/cimg.co\/news\/105349\/257816\/responsive-images\/crypto-hacker-media-library-original-5760-3840___media_library_original_300_200.jpeg 300w\" width=\"5760\" class=\"content-img\" alt=\"\"><\/figure><p class=\"wp-block-paragraph\">Vendredi dernier, Dexible, un agr&eacute;gateur de plateformes d&rsquo;&eacute;change d&eacute;centralis&eacute;es, a &eacute;t&eacute; victime d&rsquo;un <a href=\"https:\/\/cryptonews.com\/fr\/news\/piratage-a-120-millions-de-dollars-manipulation-prix-du-jeton-allianceblock\/\"><strong>piratage<\/strong><\/a><strong> de 2 millions de dollars<\/strong>. Cette information a &eacute;t&eacute; communiqu&eacute;e dans un document publi&eacute; sur son serveur Discord.<\/p><p>Dexible a indiqu&eacute; sur son compte Twitter que le pirate <strong>a exploit&eacute; une faiblesse dans le code du contrat intelligent. <\/strong>Gr&acirc;ce &agrave; cette faiblesse, il a r&eacute;ussi &agrave; drainer les fonds des portefeuilles de crypto-monnaie avec des fonds dont la d&eacute;pense avait &eacute;t&eacute; approuv&eacute;e.<\/p><figure class=\"media\"><oembed url=\"https:\/\/twitter.com\/DexibleApp\/status\/1626575966003757056?s=20\"><\/oembed><\/figure><p>L&rsquo;&eacute;quipe de Dexible a ajout&eacute; que \u00ab\u00a0quelques baleines\u00a0\u00bb, c&rsquo;est-&agrave;-dire de gros d&eacute;tenteurs de crypto-monnaies, ont enregistr&eacute; environ 85 % des pertes.<\/p><p>Les donn&eacute;es blockchain montrent que BlockTower Capital, la soci&eacute;t&eacute; d&rsquo;investissement en actifs num&eacute;riques, figurait parmi les <strong>victimes de cette attaque<\/strong>.<br>En effet, l&rsquo;adresse de portefeuille associ&eacute;e au pirate de Dexible sur la plateforme de surveillance de la blockchain Etherscan a permis de <strong>drainer quelque 1,5 million de dollars en jetons TRU <\/strong>d&rsquo;un portefeuille identifi&eacute; comme &eacute;tant celui de BlockTower.&nbsp;<\/p><p>Le portefeuille a &eacute;t&eacute; identifi&eacute; par Arkham Intelligence, une <strong>soci&eacute;t&eacute; d&rsquo;intelligence blockchain<\/strong>. La soci&eacute;t&eacute; d&rsquo;intelligence blockchain Nansen a &eacute;galement identifi&eacute; l&rsquo;adresse comme &eacute;tant celle de BlockTower Capital.<\/p><p>La soci&eacute;t&eacute; BlockTower n&rsquo;a pas imm&eacute;diatement r&eacute;pondu &agrave; la demande de CoinDesk qui souhaitait <strong>obtenir des commentaires sur cette affaire<\/strong>. Les transactions blockchain sur Arkham montrent que le pirate a transf&eacute;r&eacute; les <strong>jetons TRU vol&eacute;s &agrave; SushiSwap pour les &eacute;changer contre de l&rsquo;&eacute;ther<\/strong> (<a href=\"https:\/\/cryptonews.com\/fr\/news\/ethereum-peine-a-attirer-les-investisseurs-mise-a-niveau-shanghai-fondamentaux-sains\/\"><strong>ETH<\/strong><\/a>). Ensuite, il a envoy&eacute; de l&rsquo;ETH au fournisseur de services de crypto-monnaie TornadoCash.<\/p><h2>Un piratage r&eacute;alis&eacute; sur la fonction Selfswap de Dexible<\/h2><span class=\"replacer\"><\/span><p>Dexible explique que son &eacute;quipe a constat&eacute; et signal&eacute; un \u00ab\u00a0piratage potentiel sur les <strong>contrats Dexible v2<\/strong>\u00ab\u00a0. &Agrave; la suite de cette d&eacute;couverte, elle a publi&eacute; un rapport indiquant qu&rsquo;environ 2&nbsp;047&nbsp;635,17&nbsp;$ avaient &eacute;t&eacute; pirat&eacute;. L&rsquo;exploit a &eacute;t&eacute; op&eacute;r&eacute; sur 17 adresses, dont 4 sur son r&eacute;seau principal et 13 sur Arbitrum.<\/p><p>Sur Discord, le directeur g&eacute;n&eacute;ral de Dexible a d&eacute;clar&eacute; :<\/p><blockquote><p>\u00ab\u00a0Nous avons mis ces contrats en pause, le temps d&rsquo;obtenir une image compl&egrave;te de la situation\u00a0\u00bb.<\/p><\/blockquote><p>Dans le rapport de Dexible, on apprend que le piratage a commenc&eacute; par un retrait de 50 000 $ de crypto effectu&eacute; par l&rsquo;un de ses fondateurs sur son portefeuille. Apr&egrave;s analyse, l&rsquo;&eacute;quipe r&eacute;alise que<strong> la fonction \u00ab\u00a0sefSwap\u00a0\u00bb<\/strong> de la plateforme a &eacute;t&eacute; utilis&eacute;e pour d&eacute;placer ces fonds.<\/p><p>Cette fonction selfSwap permet aux utilisateurs d&rsquo;effectuer un &eacute;change de jetons contre d&rsquo;autres &agrave; l&rsquo;aide d&rsquo;une adresse de routeur et des donn&eacute;es d&rsquo;appel associ&eacute;es. Gr&acirc;ce &agrave; cette fonction, le pirate a r&eacute;alis&eacute; une transaction de la plateforme Dexible vers <strong>son propre contrat intelligent<\/strong>. Les transactions n&rsquo;ont pas pu &ecirc;tre bloqu&eacute;es automatiquement, car les utilisateurs les avaient au pr&eacute;alable autoris&eacute; la d&eacute;pense de ces jetons.<\/p><p>Une fois que les jetons atterrissaient sur son propre contrat intelligent, le pirate les a <strong>retir&eacute;s en passant par <\/strong><a href=\"https:\/\/cryptonews.com\/fr\/news\/selon-le-tresor-americain-partager-le-code-de-tornado-cash-nenfreint-pas-la-loi\/\"><strong>Tornado Cash<\/strong><\/a> et les a d&eacute;pos&eacute;s dans des portefeuilles BNB inconnus.&nbsp;<\/p><p>Au moment o&ugrave; Dexible a r&eacute;agi pour <strong>suspendre ses contrats et ces transactions<\/strong>, plus de deux millions de dollars avaient d&eacute;j&agrave; &eacute;t&eacute; retir&eacute;s de sa plateforme. Par mesure de s&eacute;curit&eacute;, l&rsquo;agr&eacute;gateur a demand&eacute; &agrave; ses utilisateurs de r&eacute;voquer les autorisations pour la d&eacute;pense des jetons.<\/p><h2>BlockTower Capital, l&rsquo;un des plus gros d&eacute;tenteurs de jetons $TRU<\/h2><span class=\"replacer\"><\/span><p>BlockTower Capital fait partie des plus gros d&eacute;tenteurs de jetons $TRU de la plateforme TrueFi. Depuis l&rsquo;ann&eacute;e derni&egrave;re, la soci&eacute;t&eacute; a beaucoup investi dans la plateforme, ainsi que d&rsquo;autres partenaires, notamment <a href=\"https:\/\/cryptonews.com\/fr\/news\/les-portefeuilles-dalameda-research-sont-devenus-actifs-et-plus-dun-million-de-dollars-de-jetons-ont-ete-liquides\/\"><strong>Alameda Research<\/strong><\/a>, Wintermute Trading, Amber Group et Nibbio.<\/p><figure class=\"media\"><oembed url=\"https:\/\/twitter.com\/lookonchain\/status\/1626456952388874240?s=20\"><\/oembed><\/figure><p>En ao&ucirc;t 2022, la plateforme TrueFi a connu une importante hausse de 435 % &agrave; la suite d&rsquo;une collecte de fonds estim&eacute;e &agrave; 12,5 millions de dollars. <strong>BlockTower Capital figuraient dans la liste des investisseurs de la plateforme<\/strong>.<\/p><p><strong>Le jeton $TRU permet d&rsquo;effectuer des pr&ecirc;ts non collat&eacute;ralis&eacute;s<\/strong>, ce qui repr&eacute;sente une alternative int&eacute;ressante au proc&eacute;d&eacute; de pr&ecirc;t actuel. En effet, &agrave; la diff&eacute;rence des autres plateformes de pr&ecirc;t de DeFi, TrueFi se portant garant de la solvabilit&eacute; des emprunteurs dans le processus de pr&ecirc;t. Ainsi, &agrave; l&rsquo;aide du jeton TRU, vous pouvez facilement obtenir un pr&ecirc;t, mais pour cela, vous devez &ecirc;tre digne de confiance.<\/p><p>Seuls les <strong>d&eacute;tenteurs du jeton TRU<\/strong> peuvent voter et vous juger digne de confiance. Ils doivent donc se porter garant d&rsquo;un emprunteur et si celui-ci ne rembourse pas son pr&ecirc;t, la plateforme les p&eacute;nalise. Gr&acirc;ce &agrave; ce syst&egrave;me, il devient plus facile d&#8217;emprunter dans la DeFi, car vous n&rsquo;aurez plus besoin d&rsquo;un capital &eacute;norme &agrave; l&rsquo;entr&eacute;e.<\/p>","protected":false},"excerpt":{"rendered":"<p>Vendredi dernier, Dexible, un agr&eacute;gateur de plateformes d&rsquo;&eacute;change d&eacute;centralis&eacute;es, a &eacute;t&eacute; victime d&rsquo;un piratage de 2 millions de dollars. Cette information a &eacute;t&eacute; communiqu&eacute;e dans un document publi&eacute; sur son serveur Discord.Dexible a indiqu&eacute; sur son compte Twitter que le pirate a exploit&eacute; une faiblesse dans le code du contrat intelligent. Gr&acirc;ce &agrave; cette faiblesse, [&hellip;]<\/p>\n","protected":false},"author":128,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5,2],"tags":[],"editors":[2032],"sponsored_companies":[],"class_list":["post-104646","post","type-post","status-publish","format-standard","hentry","category-features","category-exclusives","editors-pauline-eyebe"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>BlockTower Capital a perdu 1,5 million de dollars dans le cadre du piratage de Dexible<\/title>\n<meta name=\"description\" content=\"BlockTower Capital perd 1,5 million de dollars suite au piratage de Dexible, l&#039;agr\u00e9gateur de march\u00e9 de DeFi.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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