{"id":78968,"date":"2020-04-23T13:42:01","date_gmt":"2020-04-23T11:42:01","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-rubygems-vyyavleno-724-vredonosnyh-paketa"},"modified":"2020-04-23T13:42:01","modified_gmt":"2020-04-23T11:42:01","slug":"v-rubygems-vyyavleno-724-vredonosnyh-paketa","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/v-rubygems-vyyavleno-724-vredonosnyh-paketa","title":{"rendered":"Foram detectados 724 pacotes maliciosos no RubyGems","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A ReversingLabs publicou<\/a><\/noindex> resultados da an\u00e1lise de aplica\u00e7\u00e3o typosquatting<\/a><\/noindex> no reposit\u00f3rio RubyGems. Normalmente, o type-squatting \u00e9 usado para disseminar pacotes maliciosos, contando que um desenvolvedor distra\u00eddo cometa um erro de digita\u00e7\u00e3o ou n\u00e3o perceba a diferen\u00e7a. Durante a pesquisa, foram identificados mais de 700 pacotes cujos nomes s\u00e3o semelhantes a pacotes populares e diferem por detalhes insignificantes, como a substitui\u00e7\u00e3o de letras parecidas ou o uso de sublinhados em vez de h\u00edfens. <\/p>\n

Em mais de 400 pacotes, foram encontrados componentes suspeitos de realizar a\u00e7\u00f5es maliciosas. Em particular, havia um arquivo aaa.png que inclu\u00eda c\u00f3digo execut\u00e1vel no formato PE. Os pacotes mencionados estavam associados a duas contas, atrav\u00e9s das quais, de 16 a 25 de fevereiro de 2020, foram publicados no RubyGems 724 pacotes maliciosos<\/a><\/noindex>, que foram baixados cerca de 95 mil vezes. Os pesquisadores informaram a administra\u00e7\u00e3o do RubyGems e os pacotes maliciosos identificados j\u00e1 foram removidos do reposit\u00f3rio. <\/p>\n

Entre os pacotes problem\u00e1ticos identificados, o mais popular foi o «atlas-client», que \u00e0 primeira vista praticamente n\u00e3o se diferencia do pacote leg\u00edtimo «atlas_client<\/a><\/noindex>«. O referido pacote foi baixado 2100 vezes (enquanto o pacote leg\u00edtimo foi baixado 6496 vezes, ou seja, os usu\u00e1rios erraram em quase 25% das vezes). Os outros pacotes foram baixados em m\u00e9dia de 100 a 150 vezes e se camuflaram como outros pacotes utilizando t\u00e9cnicas semelhantes de substitui\u00e7\u00e3o de sublinhados e h\u00edfens (por exemplo, entre pacotes maliciosos<\/a><\/noindex>: appium-lib, action-mailer_cache_delivery, activemodel_validators, asciidoctor_bibliography, assets-pipeline, apress_validators, ar_octopus-replication-tracking, aliyun-open_search, aliyun-mns, ab_split, apns-polite).<\/p>\n

Pacotes maliciosos inclu\u00edam um arquivo PNG, no qual em vez de uma imagem, havia um arquivo execut\u00e1vel para a plataforma Windows. O arquivo foi gerado usando a ferramenta Ocra Ruby2Exe e inclu\u00eda um arquivo autoextra\u00edvel com um script Ruby e um interpretador Ruby. Durante a instala\u00e7\u00e3o do pacote, o arquivo png era renomeado para exe e executado. Durante a execu\u00e7\u00e3o, um arquivo com VBScript era criado e adicionado ao in\u00edcio autom\u00e1tico. O VBScript malicioso mencionado analisava em loop o conte\u00fado da \u00e1rea de transfer\u00eancia em busca de informa\u00e7\u00f5es que lembrassem endere\u00e7os de carteiras de criptomoedas e, ao identificar um, trocava o n\u00famero da carteira, contando que o usu\u00e1rio n\u00e3o notasse a diferen\u00e7a e transferisse os fundos para a carteira errada. <\/p>\n

A pesquisa realizada mostrou que n\u00e3o \u00e9 dif\u00edcil conseguir adicionar pacotes maliciosos a um dos reposit\u00f3rios mais populares, e esses pacotes podem permanecer despercebidos, apesar do grande n\u00famero de downloads. Vale ressaltar que o problema n\u00e3o<\/a><\/noindex> \u00e9 espec\u00edfico<\/a><\/noindex> para<\/a><\/noindex> do RubyGems e afeta outros reposit\u00f3rios populares. Por exemplo, no ano passado, os mesmos pesquisadores identificaram<\/a><\/noindex> encontraram no reposit\u00f3rio NPM um pacote malicioso chamado bb-builder, utilizando uma t\u00e9cnica semelhante para executar um arquivo e roubar senhas. Antes disso, o backdoor estava encontrado<\/a><\/noindex> dependente do pacote NPM event-stream e o c\u00f3digo malicioso foi baixado cerca de 8 milh\u00f5es de vezes. Pacotes maliciosos tamb\u00e9m aparecem periodicamente<\/a><\/noindex> no reposit\u00f3rio PyPI.<\/a><\/noindex> O rebuilderd est\u00e1 dispon\u00edvel para verifica\u00e7\u00e3o independente do Arch Linux atrav\u00e9s de compila\u00e7\u00f5es repet\u00edveis.<\/p>\n

<\/a><\/noindex><\/p>\n

Fonte: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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