Talos「第2ステージのペイロード発見。アプデだけじゃやっぱり不十分だった。システムの復元を強くお勧めする」

Talos Group suggested to restore the computer system using a backup that was created prior to the infection.
The new evidence reinforces this, and the researchers suggest strongly that it may not be enough to simply update CCleaner to get rid of the malware.

CCleaner Malware second payload discovered - gHacks Tech News
https://www.ghacks.net/2017/09/21/ccleaner-malware-second-payload-discovered/