![]() ![]() ![]() Researchers are unable to find out the actual number of computers which received second stage payload.Īntivirus firm avast which owns CCleaner has confirmed the reports of second stage payload through a blog post saying that Now the database for remaining 28 days is lost. The remaining database which hackers pooled from infected computers was deleted on September 12. This is based on log database of just four days. According to C&C server tracking database from September 12 to 16, at least 20 computers from these organization were served advanced second stage payload. The malware C&C server was taken down after the threat was detected. Below is a list of domains the attackers were attempting to target.” Based on a review of the C2 tracking database, which only covers four days in September, we can confirm that at least 20 victim machines were served specialized secondary payloads. “In analyzing the delivery code from the C2 server, what immediately stands out is a list of organizations, including Cisco, that were specifically targeted through delivery of a second-stage loader. The malware’s C&C record shows a secondary payload deployment list which includes organizations like Google, Microsoft, Intel, Vodafone, SinTel, VMware, HTC, Sony, Samsung, D-Link, Akamai, Linksys, and Cisco as their targets. A second stage payload was found delivered on 20 computers which belong to high-profile technology companies. The company has already apologized for the incident and says it’s “taking detailed steps internally so that this does not happen again.” At the very least, it would seem adding automatic updates to all future iterations of its products, including the free ones, would go a long way toward mitigating potential future threats.According to security researchers team at Cisco Talos, the recent CCleaner malware outbreak is much worse than we thought. The company says the investigation is “still ongoing.” Is there anything else Piriform needs to do? It’s not yet clear, and Piriform is declining to speculate. ![]() You can download the newest version here. Piriform says users should update to CCleaner version 5.34 or higher. In other words, says the company, “to the best of our knowledge, we were able to disarm the threat before it was able to do any harm.” What version of CCleaner eliminates the malware? It has also contacted law enforcement and says it’s “worked with them on resolving the issue.” The company also says that “the threat has now been resolved in the sense that the rogue server is down, other potential servers are out of the control of the attacker, and we’re moving all existing CCleaner v users to the latest version.” The company has already updated both the online and downloadable versions of CCleaner. What is Piriform doing to remedy the problem? Piriform says it believes the 32-bit Windows version of CCleaner and version of CCleaner Cloud were modified illicitly before their release to users.Īccording to Avast, the malware attempts to transmit information like computer names, IP addresses, installed software, active running software, network adapter information and more, to a server located in the United States. Which versions of CCleaner have the malware? Regardless, if you’re running any version of CCleaner, you’ll want to ensure you’ve updated to the latest version immediately. But since the free version of the tool doesn’t appear to include automatic updates, it stands to reason that anyone running the free version is significantly more at risk, since these users would need to manually download the update. Am I at risk from malware?Īnyone specifically using the 32-bit Windows version of CCleaner is at risk. “There is no indication or evidence that any additional ‘malware’ has been delivered through the backdoor,” it added. “We believe that these users are safe now as our investigation indicates we were able to disarm the threat before it was able to do any harm,” the company said in a press statement. How many people are at risk?Īvast, the multinational cybersecurity firm that recently bought Piriform, says it believes the compromised software was installed on 2.27 million machines. After investigating further, it determined these versions were modified illicitly before their release to users. ![]() Piriform says it first detected a problem on September 12, when it noticed an unknown IP address receiving data from software found in recent versions of the software. ![]()
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