Beat me to it swarfega! :)

Looks like I'm safe but am still apprehensive. I run a Pro x64 version of Ccleaner but will be doing a very detailed check..... just in case.

Now.... I have been using Ccleaner for many many years and have always been happy with it and recommended it to family and friends. But this news has me worried to say the least. I cannot help but notice that this has occurred since Avast bought Piriform which in turn has made me wonder about the parent companies products also. I stopped using Avast once they bought AVG, but how can a company whose sole purpose in being is computer security have let this happen?

From Piriform's Forum

Posted Today, 02:12 AM

We recently determined that older versions of our Piriform CCleaner v5.33.6162 and CCleaner Cloud v1.07.3191 had been compromised. We resolved this quickly and believe no harm was done to any of our users. This compromise only affected customers with the 32-bit version of the v5.33.6162 of CCleaner and the v1.07.3191 of CCleaner Cloud. No other Piriform or CCleaner products were affected. We encourage all users of the 32-bit version of CCleaner v5.33.6162 to download v5.34 here: download. We apologize and are taking extra measures to ensure this does not happen again.

I have uninstalled it for now. I won't need it until next Saturday anyway, hopefully they will have addressed this by then.

They have acknowledged this: Piriform - Security Notification for CCleaner v5.33.6162 and CCleaner Cloud v1.07.3191 for 32-bit Windows users

As for myself, I removed ccleaner and use bleachbit instead.

Henry

indianacarnie said:

Beat me to it swarfega! :)

Looks like I'm safe but am still apprehensive. I run a Pro x64 version of Ccleaner but will be doing a very detailed check..... just in case.

Now.... I have been using Ccleaner for many many years and have always been happy with it and recommended it to family and friends. But this news has me worried to say the least. I cannot help but notice that this has occurred since Avast bought Piriform which in turn has made me wonder about the parent companies products also. I stopped using Avast once they bought AVG, but how can a company whose sole purpose in being is computer security have let this happen?

I would not jump ship just yet, but as I said above, I would uninstall it just to be safe. I have the Pro version as well.

clam1952 said:

Wasn't too happy at Pirform getting taken over by Avast and now this! Thanks for the heads up.
64 bit version here two have been updated to 5.34 anyway, the third spare PC which I only switch on for updates once a month was still on 5.33 however downloaded an urgent update without having to go to the download site. Just to be sure checked the registry for the HKLM\SOFTWARE\Piriform\Agomo entry on all PC's nothing found.

The only 32bit OS machine I had was wiped and replaced with Linux at the beginning of August.

Makes you wonder if someone hacked the Ccleaner downloads that easily what else they may have messed with.

I did the same as you, checked my registry, found no "Piriform\Agomo entry" and I only run the 64bit versions also. I see no reason to remove my Pro version.

Hackers hid malware in CCleaner PC tool for nearly a month | ZDNet