Previously Avast maintained that the malware payload was never delivered to customers and therefore, there was no damage caused. Newest details related to this hack attack reveal that a state-sponsored hacker group might be involved in the attack while mainstream tech giants were the real targets of hackers.

Reportedly, the infected CCleaner software was distributed to nearly 700,000 customers between 15th August and 12th September. Previously we informed you about hacking of anti-virus maker firm Avast’s CCleaner software and embedding of a malicious malware payload in two of the software’s versions namely CCleaner v and CCleaner Cloud v (both are 32-bit versions).Īn initial investigation carried out by security researchers at Cisco Talos revealed that with this attack, hackers managed to compromise Avast’s servers as well as embed a backdoor and a multi-stage malware payload, which got installed automatically whenever CCleaner was installed.

Infected CCleaner Software Attack that Affected 700,000 Customers is part of a Wide-scale State-sponsored Cyber-espionage Campaign.

Ccleaner piriform scam