We estimate that 2.27 million users had the affected software installed on 32-bit Windows machines
The presence of a valid digital signature on the malicious CCleaner binary may be indicative of a larger issue that resulted in portions of the development or signing process being compromised
Source: https://www.cyberscoop.com/ccleaner-malware-avast-cisco-talos/
I think it is important to alert the community. Check your version and do the update.