#Ccleaner 5.34 update

The payload contained a Domain Generation Algorithm and Command and Control functionality that could be used to send encrypted information about the computer back to a server controlled by the hackers. In a blog post published Monday, Talos’ researchers compared the malware packaged with CCleaner to the NotPetya ransomware that caused global havoc back in June. Upon inspection, the researchers found that the CCleaner application was legitimate and had a valid digital signature from its makers, but it also contained a malicious payload. The Talos team noticed on September 13 that the installer for CCleaner v5.33 was triggering its malware protection systems. Piriform’s CCleaner was purchased by the popular anti-virus developer Avast back in July and, according to researchers at Cisco Talos, hackers were able to compromise the software just a month later.

#Ccleaner 5.34 update

And today all of those people need to be sure they have installed the latest update because some nasty malware has managed to make it into one of the builds. According to its parent company Avast, more than 130 million people use the performance optimisation software CCleaner.