CCleaner hacked with malware: What you need to know
In a blog post by vice president of products Paul Yung, he states that the company identified the attack on Sept. 12 and had taken the appropriate action even before Cisco Talos notified them of their discovery. Yung says the attack was limited to CCleaner and CCleaner Cloud on 32-bit Windows systems—fortunately, most modern PCs will likely be running the 64-bit version.
Personal users can download CCleaner 5.34 from Avast’s website if they haven’t already done so. Previous releases are also still available on the company’s website, but the infected version has been removed from the company’s servers. You’ll also want to perform an antivirus scan on your computer. If you’re affected, Cisco Talos recommends using a backup to restore your PC to a state prior to August 15, 2017, which is when the hacked version was released.