![]() ![]() ![]() The CCleaner hackers specifically chose these 20 machines based upon their Domain name, IP address, and Hostname. the first-stage payload, and a list of at least 20 machines that were infected with the secondary payload to get a deeper foothold on those systems. In the database, researchers found a list of nearly 700,000 backdoored machines infected with the malicious version of CCleaner, i.e. However, during the analysis of the hackers' command-and-control (C2) server to which the malicious CCleaner versions connected, security researchers from Cisco's Talos Group found evidence of a second payload (GeeSetup_x86.dll, a lightweight backdoor module) that was delivered to a specific list of computers based on local domain names.Īccording to a predefined list mentioned in the configuration of the C2 server, the attack was designed to find computers inside the networks of the major technology firms and deliver the secondary payload. The group of unknown hackers who hijacked CCleaner's download server to distribute a malicious version of the popular system optimization software targeted at least 20 major international technology companies with a second-stage payload.Įarlier this week, when the CCleaner hack was reported, researchers assured users that there's no second stage malware used in the massive attack and affected users can simply update their version in order to get rid of the malicious software. Such type of supply chain attack is increasing these days as hackers can replace the original installer with the malfunctioned ones.By: Mohit Kumar Hacker News Wednesday, September 20, 2017 As a user, you can do nothing to prevent this. Also, any further malware that happens in your system could be individually blocked, even if the original backdoor is not detected. Well, the C2 server could be blocked via the security program that you are using at present. This establishes the backdoor connection. Maybe you update your CCleaner and get this hacked version. Therefore, you should run a good anti-virus. It can do all sorts of things potentially. You can think of it as a remote access tool or a backdoor that allows remote code execution or malware to be dumped on to your system. The data then received into c2 server is stored in the memory. So, if you are admin the system is profiled, and connection to command and control server is established. After this period, the malware checks that if the user under which this file is executed is admin or not. There is an entire sequence of functions that run when the infected CCleaner is activated in a system.Īs a result of this, the malware delays for some 600 seconds and CCleaner resumes normal operations. They found out that there is a back door. Now, go into the details of the hack and compare it with the past hacks to see what happened. This is evidence about the number of engines being detected and hacked. ![]() However, after scanning, you will find out how many threats are there. So, you assume that it is alright and cannot be malware.ĭrag and drop your CCleaner at looks like having no problem at all in its functionality. However, when you run this on your system, it will look and work just like the CCleaner. The size would be the same, file description, version number, copyright, etc. If you see the properties of a malware file, you will find it completely fine. Most of the people seem to claim that they have the superpower that they can just see the file and tell if it is malware or not. This situation is probably the great example to highlight the importance of having anti-malware on your system. If you are currently using CCleaner, then check if you have an affected version as hundreds and thousands of people have been affected by the supply chain attack. It is reported in the news that the CCleaner was hacked and replaced by Malware. It makes theinternet more user-friendly and less vulnerable to online threats.ĬCleaner has many versions, both paid and free of cost, such as CCleaner Professional Plus, etc. The browsing history data and your private internet files are completely safe with it. It may include, the broken shortcut keys, temporary files, etc.ĬCleaner not just cleans your computer from junk files, but also, helps to keep your internet privacy protected. In computer systems, the CCleaner is effectively using to remove unwanted documents that accumulate over a period. It gives you a few options for launching this program. It has a very simple installation process. The CCleaner comes with a very small installer. It keeps your PC fast and junk free very easily. As one of the most popular junk removal tools available, CCleaner does not need an introduction. ![]()
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