CCleaner and Malwarebytes

I have today got a warning from Malwarebytes telling me that PUP.Optional.CCCleaner is a potentially unwanted program. Is this a bug in CCleaner? An error in Malwarebytes? A malicious program using the CCleaner name? Or is CCleaner not to be trusted?

/SW

g'day simon and welcome.

you got that message when, installing or updating CC or doing a MBAM scan?

where did you get CC from?


CC can be trusted, but it has some free offerings when installing, Avast (and Chrome I think still) that can give false positives.

I am a paid-up user of CCleaner - Professional version 5.40.6411 (64 bit). I am also a paid-up user of Malwarebytes - Premium 3.3.1 updates current. I always uncheck the offer of free offerings when installing. I bought the professional version of CCleaner some time ago, so haven't slipped into the mistake of installing free programs. I believe updates for CCleaner are now done automatically.

/SW

I attach a clip of the Malwarebytes warning. What I need to know now is whether to put this file into quarantine or will doing that affect the workings of CCleaner?

/SW

CCleaner PUP warning.PNG

I notice in your image it is blocking it as cccleaner (three cees)

Hereby sort of answers the question in my first post 'A malicious program using the CCleaner name?' Is that the answer? yea or nay?

/SW

I did actually note that it was three cs and not two. After quickly checking on this forum I have decided to block it. I don't think it is a true CCleaner file.

/SW

It's a known PUP "CC Cleaner", it's nothing to do with Piriform.

https://www.bleepingcomputer.com/virus-removal/remove-cc-cleaner

Thanks for the confirmation. I have quarantined it. /SW