Microsoft now detects CCleaner as a Potentially Unwanted Application
https://www.bleepingcomputer.com/news/microsoft/microsoft-now-detects-ccleaner-as-a-potentially-unwanted-application/
https://www.microsoft.com/en-us/wdsi/threats/malware-encyclopedia-description?Name=PUA:Win32/CCleaner&ThreatID=277099
And it is not only Microsoft, also MBAM warns on the update downloads for instance.
(Is this because of obfuscation used?).
There are also problems opening browsers that then may hang for some time,
slowing down the device (laptop) considerably.
polonus
Here’s What You Should Use Instead of CCleaner
https://www.howtogeek.com/361112/heres-what-you-should-use-instead-of-ccleaner/
Dev-Info from CCleaner Community Forums:
[i]There was a repack yesterday of 5.69 - currently available directly from https://download.ccleaner.com/ccsetup569.exe which VT shows as clean: https://www.virustotal.com/gui/file/09029869a47a9008ddfc5b338e60c22afd133685d9666df8cf498df769f67095/detection
MS is showing as flagging 5.68 (https://download.ccleaner.com/ccsetup568.exe) on VT though: https://www.virustotal.com/gui/file/65aa2e551486ece85e13885fca99520efa9f5c622bac087b4d78ab2da2a620ca/detection
Slim and portable 5.69 (https://www.ccleaner.com/ccleaner/builds) show up as clear from MS on VT.[/i]