


At the time of the acquisition, the company said 130 million people used CCleaner.Ī version of CCleaner downloaded in August included remote administration tools that tried to connect to several unregistered web pages, presumably to download additional unauthorized programs, security researchers at Cisco’s Talos unit said. It cleans up junk programmes and advertising cookies to speed up devices.ĬCleaner is the main product made by London’s Piriform, which was bought in July by Prague-based Avast, one of the world’s largest computer security vendors. The malicious program was slipped into legitimate software called CCleaner, which is downloaded for personal computers and Android phones as often as 5 million times a week.
