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Piniform is owned by Avast, whose security products are used by more than 400 million people.
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Those companies that feature on the malware’s “hit list” will be contacted by Avast in due course.Malicious code has been discovered in two versions of Piniform’s CCleaner housekeeping utility, the company disclosed on Monday.
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Corporate users should consider a full backup restore to before when the infected CCleaner version was installed.
![ccleaner malware high level ccleaner malware high level](https://www.keysfull.net/wp-content/uploads/2020/05/CCleaner-Professional-5.66.7716-Key-Crack-Full.png)
It is not thought any other action is currently required because it’s becoming increasingly clear the malware did not target individuals.
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Cisco noted that the control script sets its timezone to match China’s, but warned this finding is far from sufficient to confirm a direct link.Ĭonsumer users of CCleaner should upgrade to version 5.35 immediately to ensure their system is protected. law enforcement has seized the control server behind the malware and efforts are underway to trace the cyberattack’s author. The investigation has now turned into a full inquiry into the compromise of Avast’s servers and the identity of the malicious actors. Avast described the attack as a “typical watering hole attack where the vast majority of users were uninteresting for the attacker, but select ones were.”
![ccleaner malware high level ccleaner malware high level](https://content.any.run/tasks/7433e4f1-5e4f-4c65-a62d-30880c44e7be/download/screens/a9358dfe-03cb-4b1f-9509-8686a0c2bcdc/image.jpeg)
In a new blog post, it accepted Cisco’s findings and said it would be reaching out to the tech companies affected.
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“These findings also support and reinforce our previous recommendation that those impacted by this supply chain attack should not simply remove the affected version of CCleaner or update to the latest version, but should restore from backups or reimage systems to ensure that they completely remove not only the backdoored version of CCleaner but also any other malware that may be resident on the system.”Īfter previously suggesting alarm at the compromise was unnecessary, Avast has now acknowledged the attack seems to be more severe than first suspected. “These new findings raise our level of concern about these events, as elements of our research point towards a possible unknown, sophisticated actor,” said Cisco. READ NEXT: Small businesses suffer as ransomware epidemic grows The attacker was relying on CCleaner’s extremely wide distribution, even within enterprises, to gain a foothold into the corporate networks. Based on the organisations being targeted, the company speculated the malware may have been designed to steal trade secrets. Cisco said the actor appears to be “sophisticated” and working with a specific purpose. The discovery raises questions about the identity and intentions of the malware authors. If it was, a specialised secondary package would be downloaded, allowing it to infiltrate the machine. The code would look to see if the infected computer was running on one of the specified networks. The malware’s code includes a list of target domain names owned by “at least” 20 different tech firms. Cisco said it’s discovered the attack was designed to infiltrate the world’s largest tech companies, including Samsung, Microsoft, Intel, VMware and Cisco itself. Researchers at third-party companies have also been analysing the malware. In the wake of the discovery, Avast moved quickly to shut down its servers and start an internal investigation.
![ccleaner malware high level ccleaner malware high level](https://i.imgur.com/A1KK0gQ.jpg)
In total, over 2 million people are thought to have downloaded one of the impacted versions. Last week, the companies announced that hackers had compromised recent versions of the application to include malware with its installer. Piriform’s CCleaner, now owned by Avast, is one of the most popular and reputable PC cleaning apps.