Literally has no weight on how the attack functions. Because the infected code was injected into the software with a VALID, TRUSTED signature, this would've infected your Windows 8 and Windows 7 PC just the same. How is this relevant at all? This has NOTHING to do with OS versions inside the Windows OS family. Talos' security Craig Williams said that the issue was detected at an early stage, when the hackers appeared to be collecting information from infected machines, rather than forcing them to install new programs. A clean version of CCleaner Cloud took a little while longer to be released, seeing the light of day on Sept. 12, with a new, uncompromised version of CCleaner being released the same day. Piriform said that Avast, its new parent company, had uncovered the attacks on Sept. Or better yet, make sure to uninstall the app and install the new, corrected version, which currently stands at. The nature of the attack code suggests that the hacker won access to a machine used to create CCleaner, Talos researcher Craig Williams said.ĬCleaner does not feature automatic updates, so if you make use of CCleaner, make sure to check your software version, and force an update through the app. Users would have noticed nothing wrong on their systems, since the entire malicious string of code was run under CCleaner's authentic digital certificate. Specifically, hackers embedded remote administration tools on CCleaner v and CCleaner Cloud v, tools that then tried to connect to several unregistered web pages, looking to download additional unauthorized programs, according to Cisco's Talos security research unit. Piriform, which was purchased by popular security software company Avast last July, was hacked last August, and the changes to the installer packages could potentially allow hackers to control the devices of more than two million users, the company and independent researchers said on Monday.

In another large-scale attack that's bound to increase users' awareness on their systems' security, news have broken out that Piriform, creators of the popular CCleaner software tool (estimated to be instaled in some 130 million devices), have suffered a hack on their servers that compromised some installer packages of the software.

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