31
submitted 3 months ago by bitahcold@lemmy.world to c/linux@lemmy.ml

Hello everybody! I can say I'm a newbie at Linux. Wanted to ask about Linux' task viewers. On the famous task viewers such as bpytop, htop etc., can viruses hide from them? Excluding the injected codes, can virus & tracker/logger softwares hide from classic task viewers of Linux? Do they show all kinds of services and running tasks?

you are viewing a single comment's thread
view the rest of the comments
[-] MentalEdge@sopuli.xyz 12 points 3 months ago

Depends on the malware.

With total access, nothing would prevent the malicious code from modifying the task viewer itself to make it ignore the resources it is using.

Accounting for every way malware might be discovered is difficult, but with enough system access, it's all possible.

[-] somethingsomethingidk@lemmy.world 8 points 3 months ago

It also depends on the viewer. I remember using prctl() in C to chamge a process name and top showed my change but htop didn't. I'm sure a competent malware writer would be able to trick it though

[-] yukijoou@lemmy.blahaj.zone 6 points 3 months ago

iirc, postgresql renames itself in htop to show its current status and which database it's operating on

[-] palordrolap@kbin.social 2 points 3 months ago* (last edited 3 months ago)

True. There are various legitimate tools that are only really one step away from malware, so it's not too hard to imagine going that one step further.

Thinking specifically of the fact that a new process is allowed to change its apparent name, as well as creating secondary process pools, but there are bound to be other, deeper ways.

this post was submitted on 28 May 2024
31 points (100.0% liked)

Linux

47364 readers
1031 users here now

From Wikipedia, the free encyclopedia

Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

Rules

Related Communities

Community icon by Alpár-Etele Méder, licensed under CC BY 3.0

founded 5 years ago
MODERATORS