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Experts say that the software, distributed by Czech company Avast, was targeted not simply to disrupt as many computers as possible, but to conduct espionage.
CCLEANER MALWARE ATTACK SOFTWARE
Just like the last time, the hackers were looking to compromise CCleaner again. Security companies Morphisec and Cisco reported the extent of the damage caused by a malware attack on security software CCleaner. This time, the hackers breached Avast's own network, as the company migrated CCleaner to its infrastructure following the 2017 hack. Upon inspection, the researchers found that the CCleaner application was.
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The 2019 hackīut today, Avast disclosed a second hack. The Talos team noticed on September 13 that the installer for CCleaner v5.33 was triggering its malware protection systems.
CCLEANER MALWARE ATTACK UPDATE
These computers would receive a second more potent malware strain that worked as a backdoor into the compromised networks.Īvast said that 2.27 million users received the tainted CCleaner update back in 2017 1,646,536 computers were infected with the first-stage Floxif trojan but only 40 computers received the more powerful backdoor.Īvast handled the 2017 breach with grace, never using the excuse that "Piriform was hacked, not us," and kept users updated on their investigation at every step - laying the ground for how many companies should handle security breaches. Adding extensive malware based code to the binary would greatly increase the likelihood that a discrepancy existed. Such software goes though a number of QC and security checks before it is publically released. Learn how the CCleaner malware works and endangers users. CCleaner’s parent company, Piriform (who was recently bought by terrible antivirus company Avast ), acknowledged the issue. The corrupted CCleaner binary only contained a backdoor since it was what is referred to as 'coded and sealed' commercial software. The CCleaner software was discovered to be infected after a watering hole attack was detected. Hackers were looking for computers installed on the networks of several major tech companies, such as Cisco, Microsoft, Google, NEC, and others. The attack was described thusly by researchers at Cisco Talos: the legitimate signed version of CCleaner 5.33.also contained a multi-stage malware payload that rode on top of the installation of CCleaner. The malware was part of the signed installer for CCleaner v5.3 and included code that called back to a command-and-control server as well as a domain-generation algorithm intended to find a new C.