Open source malware?
this post was submitted on 18 Sep 2023
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Linux
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Free as in freedom malware
An amendment to the popular expression, "All [personal] information should be free", I suppose
Lmao
I'm guessing it's just malware that has had its source posted on github or the like, contrasted with the "hacker"/APT groups that actually charge to download and run their C2 servers
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!
A Chinese government group, you say? They shall henceforth be known as Stone Pooh.
Just you wait till you see the deep web forum users like "I backdoored Arch btw"
Did I miss it in the article? I cannot determine what the attack vector is. Am I downloading a malicious file? Am I running an insecure publicly facing service?
This is the backdoor that's deployed after a host is compromised. How the host is compromised is somewhat irrelevant. It could be exploited manually, social engineering, a worm, etc.
Ok, makes sense. Thanks for clarifying.
What is the recommended AV scan solution for Linux? Sounds like it’s needed these days.
There's a surprising lack of them, and rather too many people who say "if you get a virus in Linux you're doing Linux wrong." ClamAV is readily available but pretty basic, slow at scanning, not real-time, and erring on the side of false positives. The commercial options are all sold to businesses under those "contact us and we'll tell you what it costs once we've figured out how much money you have" pages. And if you search for answers you find a lot of recommendations for AV products that don't seem to exist any more.
A lot of those enterprise solutions like crowdstrike are a pain in the ass because they use a binary kernel module that supports like 5 kernels at most too
Clamav is really the only thing I've used.
Kaspersky Endpoint for businesses. This is the only competent solution that exists as a realtime AV. The fact is, most AV companies do not make AV for Linux, and most of those who do, make it just for the business and not from a competence POV. Regardless of your political stance, Kaspersky is by far the anti-malware industry king, both in terms of heuristic and blacklist protection and in terms of annual global reports.
Thanks, my government (UK) has banned Kaspersky for use in their infrastructure, so I’ll follow their advice for my own. Not mentioned in the replies is BitDefender, I see they have a solution as well, I’ll evaluate.
Maybe Crowdstrike? I know I see it on our linux machines. I am not endorsing it one way or the other. I will say that we have had a couple of incidents where I thought it was taking up more cpu in a high cpu situation, but our admins turned it off, and that wasn't the problem. So I guess it's working ok. One of their updates caused some issues one time, and I don't recall the exact details, but I think that was a one off and they haven't done it again.
I almost forgot to tell you. For the equivalent of business endpoint AVs, there exist consumer AVs. If for those products, the companies have auto renewal policy, stay away from any such money grubber AV company. Very few companies like Kaspersky do NOT have auto renewal. Norton for example has it.
ClamAV if you're ok with non real-time stuff
Common sense antivirus (tm)
This isn't helpful, nor true. As technology grows, so do attack vectors, so do malware devs, so do vulnerable softwares, so do cloud servers and SaaS and android and steamos and IoT making linux a juicier target.
Two truths of "common sense" is that it's rarely actually common nor does it make sense to anyone not already In The Know. The "Sense" that is actually common is often wrong.
If by "Common sense antivirus" you mean "don't download and run the Hot Singles Finder ELF from a xxxNerdsDickedDown.com ad," that kind of common sense simply isn't enough to ensure avoiding infection anymore; if you mean "use a firewall, and don't install/run anything without checking signatures/checksums, and prefer sandboxing, and also check for exploits of application management programs like Steam or Google Play that are theoretically supposed to be checking signatures/checksums for you, and use a password manager, and don't click on the links in email, and check the headers to ensure it's actually fron who it says it's from, and..." then you're far outside the realm of "common."
If your kneejerk response is "that's just being overly paranoid," congrats, you have become a User: you are the type of person who needs something to automate checking for malware/exploits so you don't get yourself botnet'd.