![]() ![]() Addendum: CCleaner security issuesĭue to the fact, that some CCleaner lovers are take my (German) blog post about that tool to personally, I let execute the portable version of CCleaner within my security test bed. It's the old thing: If you are using snake oil, your hands get dirthy with that. So I don't need to add further comments to my article – it's now up to you, to judge, whether you trust CCleaner anymore. Shortly after publishing the German edition of this blog post, I got confirmation from another blog reader, that it wasn't a single incident. I have used CCleaner to comfortably "clean up" the registry under a user interface, which is sometimes difficult to find under Win 7 itself. I will reinstall the image and uninstall CCleaner 5.38 immediately! Thus the "silent" update is automatically activated by Avast – an absolute No Go. Meanwhile I restored the image from on one of the affected Win 7-PCs and CCleaner was updated from 5.38 Slim to 5.46 again, although the option for automatic updates was deselected.Īgain at 5.46 the data transfer is activated without any query. Of course it's a very unpleasant behavior – of course I don't notice it, because I don't let this software on my systems. Today I will restore the Win 7 images from September 1st and install yesterday's Windows and missing software updates. I will now observe the behavior of CCleaner to possibly be able to reproduce the behavior. I installed CCleaner v5.38 over v5.46 (works fine), made the usual settings and didn't have to delete an ominous "Avast-Pirifom" cookie, but on all Win 7 PCs. In another mail the blog reader wrote:Īlso my Win 10 home tablet is affected by the "misery". Georg has send me the above screenshot from Control panel showing the installed update. I discovered that CCleaner 5.46 has been installed. In the Control Panel (Programs and Functions), I have sorted the installed software updates by date. In version 5.46 Slim (Settings –> Privacy) the function "Help improve CCleaner by sending anonymous usage" was activated. If Avast did this systematically, then the data sniffing has reached a new peak. ![]() I had definitely deselected the option for automatic updates. Just now I had to find out on 3 computers with Windows 7 Ultimate 64 bit that CCleaner Slim version 5.38 has been updated yesterday () automatically to v5.46. This night, several e-mails arrived from German blog reader Georg S., who drew my attention to another ccleaner story. I had summarized my thoughts in the article CCleaner V 5.46 with improved data settings and assumed that (according to my blog posts) nobody actually lets the software on his systems anymore. The users should be able to adjust if and what the CCleaner does. ![]() After a big outcry among the users, Piriform decided to completely withdraw version 5.45 of the CCleaner at the beginning of August 2018.Īfter the complete revision the CCleaner version 5.46 was released at the end of August 2018. With the CCleaner version 5.45, Piriform had upgraded its telemetry data collection (see AVAST CCleaner 5.45 and Telemetry). Since security provider AVAST took over developer Piriform in 2017, the mishaps have been increasing. About the CCleaner and the trouble it caused, I've published a lot of articles here in the blog. ![]()
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