Download Ccleaner For Windows Server 2012 R2 |TOP|
Laure Honigsberg
We are currently running 3 different virtual machines with the Windows Server 2019 OS. Is there any recommendations for a PC cleaning software such as CC Cleaner that we can run on these servers to improve to storage and how the servers run?
According to different reports, the malware is capable of collecting specific data from an infected computer system, including IP addresses and information on installed and active software, and sending it to a third-party server located in the United States.
According to Wired, "Cisco says it obtained a digital copy of the hackers' command-and-control server from an unnamed source involved in the CCleaner investigation. The server contained a database of every backdoored computer that had 'phoned home' to the hackers' machine between September 12 and 16".
The CCleaner malware shares code with tools used by Axiom, and a time stamp on a compromised server matched a Chinese time zone; however, time stamps can be changed or modified, making it difficult to pinpoint origin.
According to Piriform, PCs with the compromised versions would transmit the computer's name, IP address, a list of installed software, a list of active software, and list of network adapters to a third-party server located in the US. The company describes this as "non-sensitive data" which was used to profile affected PCs.
After collecting the data, the malware downloaded a second stage payload from the third-party server. As the payload was encrypted, Piriform hasn't explained what it's functionality is, however notes that it has not seen this payload being executed and believes its activation is highly unlikely.
Piriform says Avast detected suspicious activity on its download server a day ahead Cisco's notification, but hadn't warned the public until today due to its cooperation with US law enforcement, which involved shutting down the affected server on September 15.
"Working with US law enforcement, we caused this server to be shut down on the 15th of September before any known harm was done. It would have been an impediment to the law enforcement agency's investigation to have gone public with this before the server was disabled and we completed our initial assessment," the company said in a statement.
In a supply chain attack that may be unprecedented in the number of downloads, servers hosting CCleaner, a popular tool for cleaning up the PC, has been delivering a version of the said software with malware.
Threat actors have managed to change the files that were being delivered by Avast servers hosting CCleaner updates. In case you are wondering why they were on those servers, Avast acquired Piriform, the original publishers of CCleaner, a few months ago.
The incident was discovered and reported by Talos. Piriform is aware of the situation and is acting to prevent further damage. They are also investigating how the files coming from their servers were modified before being released to the public.
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I just finished moving all our servers from SEPM to Windows Defender + ATP and you know what did not happen? Performance issues or any increase in CPU load or disk I/O load across our VMware clusters. What did however happen is Defender flagged a bunch of PUA installer files in local profile download folders on some of the servers and found a compromised server with active malware on it that SEP didn't do a damn thing about. ATP alerted on this pretty much immediately and was not a false positive.
This is SEP running a full scan on the system finding nothing and Defender Real Time Protection flagging each file SEP touches and scans, thanks SEP for doing nothing for the last 10 odd years it's been on that server. It's a Windows Server 2008 R2 server and yes it has ESU license and yes it was already in the process of being replaced.
Plus it has nothing at all to do with if a 850 Pro is fast enough. If Defender was placing I/O load on the system I would see such a thing in the performance monitoring. If average IOPs across the cluster is 10,000 before Defender deployment and still 10,000 after Defender deployment that means Defender is not loading any of the servers with disk activity so what the storage is is irrelevant, it's not putting load on it so it could be an HDD. Zero extra load is zero extra load. You could be using NVRAM and it would make no difference to what ever you are complaining about.
The server would store this information into a MariaDB (MySQL fork), and would run a series of filters on each infected host to determine if to send a second-stage payload, a very stealthy backdoor trojan.
Avast says that after a deeper analysis of the logs, they find evidence that the server's disk storage had been filled, and attackers had to delete the collected data they recorded up to that point (they most likely downloaded it before deleting it).
When opening the startup tab in windows 10 task manager, things got stranger. Google was listed but dropbox not. In the Google BU-and-Sync preferences, when I toggled the checkbox to run at startup, the row in the task manager startup tab would correctly disappear and appear instantly and accordingly. But with Dropbox, it would never even appear.
Falcon Endpoint will notify you of any additional activity through our Falcon Intelligence detections. The intent behind the malicious packages was to collect an initial set of reconnaissance data; we urge you to block the known IP address and domains at your network perimeter to prevent any communication to the collection server. In addition, we recommend you update to the latest version of the Avast CCleaner software to ensure the embedded malicious code is removed.
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