Hackers have managed to embed malware into the installer of CCleaner, a popular Windows system optimization tool with over 2 billion downloads to date. The rogue package was distributed through ...

If you installed the popular Windows registry scanner and cookie cleaner CCleaner after Aug. 15, you’re likely running a decapitated botnet. If you installed the free version of CCleaner after Aug. 15 ...

For about 22 days, the CCleaner system maintenance application distributed malware through its official channels. It appears to have been an exploit of the CCleaner installer’s download server, ...

In the grand annuls of software irony, apps that explicitly promise to make your computer more stable being used to secretly distribute malware are top of the list, especially when they happen to be ...

CCleaner is now flagged as a Potentially Unwanted Application, or PUA, by Microsoft’s Windows Defender antivirus, and its installation is thus blocked on Windows 10 devices. Microsoft says CCleaner ...

A month ago, I wrote about how I felt Avast was ruining CCleaner, the excellent system cleaning software it took over when it acquired Piriform last year. In Avast's short tenure, we've already seen ...

Microsoft’s Windows Defender antivirus software is—perhaps ironically—flagging CCleaner, a junk file remover, as a “Potentially Unwanted Application." The alerts occur when Windows Defender scans ...