Czech anti-virus firm Avast has revealed that hackers appear to have tried the same type of supply chain attack again. In August 2017, the installer for the popular clean-up tool CCleaner was tampered with by hackers to contain a malicious backdoor. Avast discovered on September 23rd that a hacker had gained access to its internal network after compromising a workers VPN credentials, and managing to escalate their privileges to give them admin rights for the domain. After a deeper analysis, Avast determined that the hacker had been attempting to gain access to the network since at last May 14th 2019.”]