ExtremeTech

Hackers Hid Malware in CCleaner for Nearly a Month

Malware has been detected within Piriform's CCleaner, a popular registry cleaner and space recovery tool. The malware-infected package had been distributed for nearly a month. Share on Facebook (opens ...

32-bit CCleaner 5.33, CCleaner Cloud 1.07 compromised, introduced backdoor

A two-stage backdoor in digitally signed binaries of 32-bit CCleaner 5.33.6162 and CCleaner Cloud 1.07.3191 caused the sending of "non-sensitive data" to a server in the US. The issue has been fixed.
techtarget

CCleaner malware: How dangerous is it to enterprises?

The CCleaner malware, which placed a backdoor in the widely used system maintenance tool, appears to be more serious than was thought. Why is the CCleaner malware so dangerous? Should enterprises shy ...
techtarget

Another CCleaner attack hits Avast supply chain

Antivirus vendor Avast said it was able to stop another attempted CCleaner attack, but experts said these types of supply chain attacks should be a concern for enterprises. According to Jaya Baloo, ...
Time

CCleaner Malware Hack: What to Know and How to Protect Yourself

Sponsored content. Supplied in partnership with TIME. TIME is the sponsor and source of this material. Last updated: August 2026. TIME Subscription: Reference Facts and FAQ Definition TIME is a ...