While looking at the backdoor, the researchers discovered unique code implementation “only previously seen in APT17 and not in any public repository.” Now, they reveal that the stage 2 payload contains code that is an exact match to APT17 malware seen before. We resolved this quickly and believe no harm was done to any of our users. We estimate that 2.27 million people used the affected software. Researchers at Cisco Talos discovered that CCleaner’s 32-bit version (v and CCleaner Cloud v) were compromised using the app’s v5.33 installer. Our new parent company, the security company Avast, determined on the 12th of September that the 32-bit version of our CCleaner v and CCleaner Cloud v products, which may have. The group specializes in supply chain attacks and Operation Aurora is considered one of the most sophisticated incidents ever.Īccording to Intezer, an analysis of the stage 2 payload used in the CCleaner attack provided a clear link to the Chinese hackers after the first payload (the backdoor in the installer) revealed shared code with Axiom group. We recently determined that older versions of our Piriform CCleaner v and CCleaner Cloud v had been compromised. ccleaner By sky7, Septemin General Discussion. In other words, to the best of our knowledge, we were able to disarm the threat before it was able to do any harm. CCleaner v and CCleaner Cloud v had been compromised CCleaner v and CCleaner Cloud v had been compromised. Now, Intezer researchers suggest that the attack was state-sponsored and that it can indeed be attributed to Chinese hackers that are part of the Axiom group.Īlso referred to as APT17 or DeputyDog, the group was previously associated with Operation Aurora, which started in 2009 and targeted companies such as Google, Adobe Systems, Juniper Networks, Rackspace, Yahoo, Symantec, Northrop Grumman, and Dow Chemical. Users of CCleaner Cloud version have received an automatic update. Descriere Cercettorii Cisco Talos au descoperit c pachetele de instalare ale CCleaner, dei compromise prin adugarea de malware, fuseser semnate cu certificate digitale valide, deinute de compania Piriform (între timp aplicaia CCleaner a fost preluat de compania Avast). In a short span of time, CCleaner’s reliable version 5.33 software provided by Avast itself has included malware, which affects millions of computers. The sophisticated supply chain attack that resulted in millions of users downloading a backdoored version of the popular CCleaner PC software utility was the work of state-sponsored Chinese hackers, according to a new report. Versiunile afectate sunt CCleaner v5.33 i CCleaner Cloud v. On September 13, 2017, the Talos security research group (Cisco subsidiary) has tracked many of the cases in which software download servers brought malware to users.
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