Chinese hackers have unleashed a never-before-seen Linux backdoor::SprySOCKS borrows from open source Windows malware and adds new tricks.
CVE-2022-40684 An authentication bypass vulnerability in Fortinet FortiOS, FortiProxy and FortiSwitchManager
CVE-2022-39952 An unauthenticated remote code execution (RCE) vulnerability in Fortinet FortiNAC
CVE-2021-22205 An unauthenticated RCE vulnerability in GitLab CE/EE
CVE-2019-18935 An unauthenticated remote code execution vulnerability in Progress Telerik UI for ASP.NET AJAX
CVE-2019-9670 / CVE-2019-9621 A bundle of two vulnerabilities for unauthenticated RCE in Zimbra Collaboration Suite
ProxyShell (CVE-2021-34473, CVE-2021-34523v, CVE-2021-31207) A set of three chained vulnerabilities that perform unauthenticated RCE in Microsoft Exchange
They’re doing some CYA, but still: “including (but not limited to)”.
What part of that is a never before seen backdoor?
Since it’s a newly discovered virus, the entire thing. Doesn’t mean the tactics have never been seen before, just the specific implementation of Trochilus on Linux + SOCKS.
It’s poor writing to sound more dramatic while still being true.
This is the best summary I could come up with:
Researchers from NHS Digital in the UK have said Trochilus was developed by APT10, an advanced persistent threat group linked to the Chinese government that also goes by the names Stone Panda and MenuPass.
In June, researchers from security firm Trend Micro found an encrypted binary file on a server known to be used by a group they had been tracking since 2021.
The Linux malware ported several functions found in Trochilus and combined them with a new Socket Secure (SOCKS) implementation.
The Trend Micro researchers eventually named their discovery SprySOCKS, with “spry” denoting its swift behavior and the added SOCKS component.
Besides showing interest in espionage activities, Earth Lusca seems financially motivated, with sights set on gambling and cryptocurrency companies.
Monday’s Trend Micro report provides IP addresses, file hashes, and other evidence that people can use to determine if they’ve been compromised.
The original article contains 537 words, the summary contains 143 words. Saved 73%. I’m a bot and I’m open source!
Ok, but what does it attack? Systemd, udev, fuse, …?
link to another article with the cve’s: https://www.trendmicro.com/en_us/research/23/i/earth-lusca-employs-new-linux-backdoor.html
So it’s not general to every linux distro, is it?
I could be wrong but this is a quick summary as I would look at it. As the Sysop for a small company running linux
Fortinet FortiOS, FortiProxy, and FortiSwitchManager: Type: Authentication bypass vulnerability Impact: If you're using any of these Fortinet products, an attacker could bypass authentication mechanisms and potentially access or control the system. Affect on Linux users: Only those Linux users who have these Fortinet products in their environments would be affected. CVE-2022-39952: Product: Fortinet FortiNAC Type: Unauthenticated remote code execution (RCE) Impact: Attackers can remotely execute code without authentication. Affect on Linux users: Relevant for Linux users/administrators who use Fortinet FortiNAC in their network. CVE-2021-22205: Product: GitLab CE/EE Type: Unauthenticated RCE Impact: An attacker could remotely execute code without authentication on GitLab instances. Affect on Linux users: This would affect Linux users who host or interact with GitLab CE/EE instances. CVE-2019-18935: Product: Progress Telerik UI for ASP.NET AJAX Type: Unauthenticated RCE Impact: Allows remote code execution on affected servers using this UI component. Affect on Linux users: Most Linux users would not be impacted unless they host ASP.NET applications using this specific UI component. CVE-2019-9670 / CVE-2019-9621: Product: Zimbra Collaboration Suite Type: Bundle of two vulnerabilities for unauthenticated RCE Impact: Attackers can remotely execute code without authentication on systems using Zimbra. Affect on Linux users: Linux users who use or host the Zimbra Collaboration Suite would be affected. ProxyShell (CVE-2021-34473, CVE-2021-34523v, CVE-2021-31207): Product: Microsoft Exchange Type: Set of three chained vulnerabilities for unauthenticated RCE Impact: Attackers can exploit these vulnerabilities in sequence to remotely execute code on Exchange servers. Affect on Linux users: This primarily impacts organizations that run Microsoft Exchange servers. Directly, Linux users wouldn't be affected unless they interact with or administer these servers.
Thanks, my understanding as well. A clickbait title…
Thanks!
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