Questions tagged [malware]

Questions relating to malicious software

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Can Linux effectively remove malware from an infected NVMe drive?

If yes, can you please give me the commands for this, and which distro can do better in this context? And can I format it as an external drive or can I format while I am using it as a host system?
-1 votes
0 answers
65 views

Ubuntu 20.04 infected with nood rat malware, clamav is coming back clean. Does anyone know how to manually clean this?

Ubuntu 20.04 is infected with nood rat malware, ClamAV is coming back clean. Does anyone have the process for manual cleaning this?
1 vote
1 answer
58 views

Where can I report a malicious app in your store?

I just noticed there are three different "leger live" applications in your snap store. Suspecting a fraud, I downloaded them, and indeed, some of them ask for the seed phrase... (which of ...
0 votes
0 answers
97 views

Ubuntu system infected with virus, need help with removal and security

I accidentally exposed my SSH to the public internet with a user that had a very simple password. Hackers exploited this, and now whenever I boot up and connect to the network, my CPU usage jumps to ...
-2 votes
1 answer
181 views

How to remove Virus Popup Alerts coming from Chrome? [duplicate]

I have downloaded a PDF book from a site after which every now and then this virus alert pops up as shown in the Image. How to get rid of it? Please suggest any Antivirus which disinfect the virus ...
0 votes
0 answers
38 views

Is there an online malware scanner for browser? I recently had my firefox browser locked down by clicking on a picture in Facebook

Is there an online malware scanner for browser? I recently had my firefox browser locked down by clicking on a picture in Facebook.Firefox browser, locked untill hard shutdown, after reboot the ...
2 votes
3 answers
2k views

Clamscan viruses scanning, too many viruses

I installed ClamAV to check for some malware. It took much time, 4 hours, to scan my PC, and the results are in this screenshot: I am on Ubuntu 22.04 and tried to stay safe, but I wanted to double-...
0 votes
1 answer
111 views

Problems with the Terminal

I recently had problems with Trojan viruses and malware on my Ubuntu 20.04, and I managed to vaccinate the system using clamav CHkRootkit RKhunter and Linux Malware Detector, but despite having ...
0 votes
1 answer
49 views

i just have Downloaded spectacle and the app icon shows as gear is this a malicious app or this is just a problem?

I just Downloaded spectacle sudo apt-get install spectacle and the app icon shows as gear. Is this a malicious app or this is just a problem?
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0 answers
223 views

Livepatch reporting trojan based on Trend - Trojan.Linux.EMPEROR.USELVK623

we have a bunch of machines that are currently flagging a trojan in the livepatch update. Trend is reporting an issue in: /snap/canonical-livepatch/248/canonical-livepatch /snap/canonical-livepatch/...
0 votes
0 answers
259 views

How to remove StripedFly malware from Ubuntu 22.04?

I was reading this article, and decided to search for sd-pam in the processes of one of my laptops. I did ps -x | grep -i "sd-pam", and got 2864 ? S 0:00 (sd-pam) 29172 pts/0 ...
1 vote
2 answers
240 views

What is /var/tmp/php-fpm ? This command is consuming high % of CPU

Somebody kindly explain what kind of a file is /var/tmp/php-fpm and its uses? This command is consuming high CPU percentage when I checked using the top command. The file gets recreated even if I ...
242 votes
24 answers
189k views

Do I need to have antivirus software installed?

I thought that there was no need to scan for viruses either in Ubuntu or any Linux distros until I found virus scanner packages clamtk and klamav in Ubuntu software center yesterday. This leads to ...
0 votes
0 answers
65 views

What if I open Windows Application.exe which contains Viruses in Wine, it will harm my Linux os too? [duplicate]

If I use a Windows program in Wine that is affected by a virus, can it harm my Linux operating system and other files too? How I can avoid Windows viruses in Linux? Or there is another way to run to ...
0 votes
1 answer
274 views

Suspicous windows-like notifications from brave web browser (allegedly)

I almost always never allow websites to send me notifications, however recently I've been getting a lot of notifications from this specific website which is why i became a little bit suspicious, not ...
-3 votes
1 answer
197 views

GUI Ubuntu stuck_1

I deployed several years ago open free software Dspace 6 repository docs on Ubuntu 18.04.5 LTS desktop. I deployed Dspace on http, not on https. 1,5 years ago There was situation when The virus (https:...
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0 answers
27 views

Weird browser-looking application opens itself in Ubuntu 20.04 [duplicate]

Today, a weird aplication, that looks like a default Ubuntu browser (not firefox) opens at random times (it opened two times today) and that never happened before to me. I taked a screenshot and i'm ...
0 votes
0 answers
262 views

How to fix Trojan:EC2/DGADomainRequest.B

I have an EC2 instance which had some WordPress websites. My Ubuntu version is 20.04. A few days ago they were affected by malware and I have removed all malware from these websites, but in my AWS ...
103 votes
5 answers
165k views

clamav - ERROR: /var/log/clamav/freshclam.log is locked by another process?

I have installed clamav and I want to to update the files that it uses to identify viruses: $ sudo freshclam ERROR: /var/log/clamav/freshclam.log is locked by another process ERROR: Problem with ...
0 votes
0 answers
62 views

I cannot Reinstall linux without being infected

I have tried for a couple times now to reinstall any version of linux to a PC on my network. I got hacked about 6 months ago by someone on a game, and I haven't been able to comfortably reinstall ...
0 votes
0 answers
76 views

Linux.BtcMine.717 in canonical-livepatchd

today Dr.Web for Linux (antivirus) is detecting virus in Menace : Linux.BtcMine.717 Détecté par le module : Scanner Heure de détection : 17/6/23 2:42 Μ.Μ. Nom de l’objet : canonical-livepatchd ...
3 votes
3 answers
3k views

Running Malwarebytes under Wine 1.2.2

How can I get Malwarebytes to run with wine under 10.04? I have wine version 1.2.2 at default settings. Is there anything specific I need to do in order to get Malwarebytes to run? I am using the ...
0 votes
1 answer
54 views

Is it possible to see what processes did last mounted USB device?

Is it possible to see what last mounted USB device? I am afraid, that last device infected my ubuntu machine and want to find out something about that device.
0 votes
0 answers
482 views

Ubuntu 23.04 clamtk: libjson-c.so.3: cannot open shared object file: No such file or directory

I cant use the program for years now. What is wrong here?
25 votes
5 answers
6k views

Can windows viruses affect my encrypted linux partition on the same disk?

Can Windows viruses affect my encrypted Linux partition on the same disk? I just want to use Windows but I am concerned.
2 votes
0 answers
548 views

BLACKLOTUS UEFI virus: windows cannot avoid but how about Ubuntu?

Windows is facing a serious threat but what about Ubuntu? Is there any way to avoid UEFI in the boot process or not be affected by BLACKLOTUS? https://www.schneier.com/blog/archives/2023/03/blacklotus-...
0 votes
1 answer
184 views

Linux Malware Detection - Malware in LMD folder found

I recently ran a full scan of my Ubuntu 22.04 LTS system and maldet reported these two files: maldet(3692653): {quar} malware quarantined from '/home/davids/LMD/maldetect-current/maldetect-1.6.4/files/...
0 votes
0 answers
307 views

Crypto-mining maleware that disable input and output devices

I recently find my computer monitor sometimes shuts down itself and cannot be wake up by tying on my keyboard or my mouse. I turned off and on the monitor, but it shows 'no input signal'. I changed ...
1 vote
1 answer
118 views

Compromised Ubuntu? Weird unauthorised iso file downloads and download attempts

I noticed 2 failed attempts at downloading an iso file in my Downloads, that were attempted without my knowing. It happened while I was using the computer (attempt time 10:06, screenshot 1). The ...
3 votes
1 answer
889 views

How do I know if Ubuntu 22.04 has any virus?

I have a Windows / Ubuntu 22.04 dual boot. I get screen artifacts as shown below. At that moment, what I restarted Ubuntu. When it turned on, it no longer appeared and, until now all the applications ...
1 vote
0 answers
1k views

ClamTK not working

I think I have this same issue. Lately, I noticed I get malware, that redirects me to fake websites while I browse. I installed clamtk and clamav, and it worked. But I recently updated eveything: the ...
1 vote
3 answers
2k views

Remove adwares ( taboola, outbrain etc ) from Chrome/Firefox on Ubuntu

How to remove "around the web" by outbrain or recommended by taboola from google chrome or firefox on ubuntu ? I tried removing content of rm -r ~/.config/google-chrome install and re-install ...
0 votes
0 answers
866 views

kdevtmpfsi using the entire CPU

I noticed the cpu on ubuntu is 100% used by a process named kdevtmpfsi Anyone know what this is -is it malware? In /var/spool/cron/crontabs/www-data i came across the following cron job: # DO NOT EDIT ...
1 vote
1 answer
57 views

I possibly installed a malware by a misspelled java installation command in the terminal

I was trying to download java, more specifically, JDK version 16. The right command was sudo apt install openjdk-16-jdk, but I end up typing sudo apt install open-jdk-11 instead, the funny thing is ...
0 votes
0 answers
144 views

Files Unexpectedly Identified as Trojans by ClamAV

ClamAV has produced some unexpected results from a recent scan: Are the files in libxkbcommon and node_modules really trojans and exploits, or is this an example of Clam not doing what it's supposed ...
1 vote
0 answers
58 views

Is this system affected by CVE-2019-7304?

I am analyzing a system that since a month shows two new users in the login screen. After some research I stumbled over the exploit of snap: CVE-2019-7304 I checked the passwd file and found a new ...
0 votes
0 answers
105 views

my homedisk erased, is this malware or a systemfault?

After trying to save a spreadsheet, LibreOffice was hanging and could not be used anymore. I recently installed 20.045 so I decided to reinstall it. I first made an rsync of my homedirectory which is ...
0 votes
0 answers
1k views

rkhunter warnings

Hi I just ran rkhunters and got a lot of warnings which are not the first ones I found the first time a I ran it. I'll drop here the results to see if someone can help me and tell tell me if they are ...
1 vote
1 answer
375 views

chkrootkit says "grep --color=auto INFECTED," what should I do?

I just installed and ran chkrootkit for the first time and when I ran sudo chkrootkit | grep INFECTED, it returned ![user] 21342 pts/0 grep --color=auto INFECTED I'm a complete novice at this and ...
0 votes
0 answers
55 views

key strokes take a long time to register, ubuntu 16.04, ubuntu 18.04, etc

No matter what Ubuntu version or kernel version, some time after install it comes to the point where keystrokes take a long time to register. Sometimes it misses a character or duplicates a character,...
0 votes
1 answer
300 views

How to use wine with more security?

This question may sound duplicate but please read. I am trying to make a cross compiled application. So I would like to try mingw64. But while installing it I found that it requires wine. I have heard ...
0 votes
1 answer
347 views

What is the Generic Drive that keeps beeping on and off

Symptoms: Once booted and logged in: Computer beeps (same as attaching an external USB drive) then beeps (same as detaching an external USB drive). Frequent. Erratic. (Annoying. Worrisome: is ...
0 votes
0 answers
107 views

Ubuntu hogging internet data even when idle

Ubuntu 20.04. I just connected my Ubuntu laptop that has negligible amount of apps installed to my WiFi. It's the only connected device to the router. My router is blinking rapidly, it does that when ...
219 votes
2 answers
569k views

How do I scan for viruses with ClamAV?

I installed ClamAV via Terminal (Ctrl+Alt+T) with: sudo apt-get install clamav but how can I scan for viruses?
1 vote
0 answers
47 views

Possible windows virus infection?

Our IT team reported that a virus scan they did against an ubuntu server came back with: /sys/kernel/boot_params/data: Win.Trojan.Blackhole-36 FOUND When I looked at that file I can see text like ^...
0 votes
0 answers
212 views

New User needs help removing root kit virus

I clicked on a PUP pretending to be Norton and then subsequently installed Malware/Trojan. This virus overwrites the firmware of your router and redirects your DNS (doing a hardware reset does not ...
2 votes
1 answer
569 views

pmproxy using 100% CPU

For a couple days now, I notice a process called pmproxy using 100% CPU on bootup and stays at 100%. I kill the process and it restarts a couple seconds later. I renamed the folder /usr/lib/pcp and ...
1 vote
2 answers
176 views

I possibly installed malware, help please

I was looking for a Twitter app on Ubuntu Software Centre and I downloaded a fake Twitter app from snapcraft. Didn't notice and didn't read the comments before I hit install, like an idiot. The name ...
37 votes
4 answers
39k views

Some suspicious software making request to nmcheck.gnome.org

In the last few days, my system has started popping up an Ubuntu default web-browser and making a request to nmcheck.gnome.org website and immediately shutting off. Since this happened, I cannot run ...
2 votes
1 answer
4k views

How to print the location of malware in the terminal with ClamAV?

When I use clamscan -r --bell -i / (scan the whole system, output only when warning appear) I get this warning in the terminal LibClamAV Warning: PNG: Unexpected early end-of-file. How can I get the ...

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