r/computerviruses

Hi everyone. I’m looking for some advice because I’m honestly pretty worried about my PC and my accounts.
Yesterday I downloaded a file that I now believe was malware/trojan. I ran it on my Windows PC, and shortly afterwards I started noticing suspicious activity on some of my accounts. For example, my Instagram account was sending messages/screenshots to people without me doing anything, and I also noticed suspicious activity involving Discord. This made me think that the problem is coming from my computer rather than just one of the individual accounts.
I have already disconnected the PC from the internet. I’m currently trying to figure out the safest way to deal with this before I make things worse.
i already use Malwarebytes and the virus is on quarantine

i posted a similar comment on the mental health reddit but i didn't get any answer at all, and after all, this might be the place with the most people to help me with this topic

around a week ago i got what i think was an infostealer out of nowhere, i tried to change my passwords from another device but everytime i changed them he kept coming back, even after resetting my pc, one day while i was in class he started to try and change my passwords, passkeys, when i tried for the first time, i was able to see the latest activity and find out about his location and ip, but later if i tried to put my gmail or password to autenthicate, a random mass of keys would appear, as if i smashed my phone's keyboard, meaning he found out

that same day i got anxious and i resetted my pc, my phone, and decided to make a new gmail account alongside changing my number too, i lost literally everything but steam, some days later after the situation nothing new showed up, but i keep getting anxious and im going paranoid, what if he comes back? what if he steals the little i got left, what if finding out about his ip and location made him angry and made the entire situation go from just stealing information to actual hate?

im literally unable to do anything without looking at my phone, gmail and taskbar, searching any task on it that i don't fully know even tho all of them end up being official windows process

i had a roblox account from nearly a decade ago i kept using out of nostalgia and when the main problem happened he almost drained my keycard too, now im literally anxious of even putting a keycard in my computer even if i don't leave the details in my pc, not to mention i lost everything i had in that account too, all my socials ended up posting scam posts

seriously, what do i even do now? is there a way where he manages to get in again? and how could i even find out if im still compromised? i literally can't live like this

Hi. So I found myself in a bit of predicament. A customer brought to our shop PC which was infected by some kind of virus which was “stealing his information” and messing with the PC. He said that he already lost access to his Facebook account which he was using at the time on said PC.

Now what I can see:

After the time of infection there’s no boot screen, no motherboard or windows splash screen, no recovery nothing. There’s just black screen with no signal message from the monitor until windows boots up and suddenly there‘s login screen. Sometimes it doesn’t even boot at all.

After logging in it immediately shows black background saying “f*** you n******” which disappears after a moment. Cant scan it with windows defender because half way through the defender service stops working.

I can deal with messed up windows but the lack of boot screen worries me since I’ve never seen anything like it. Removing SSD did nothing, resetting bios also did nothing.

Tomorrow Im gonna bring my old Linux laptop and get some scanning going but for now it’s quarantined.

Do you have any idea if that’s really a bios level malware? Should flashing bios help or maybe should he take the motherboard back to the store where he has warranty and let them deal with it? Any advice would be appreciated.

Motherbord: GIGABYTE B760 DS3H AX DDR4 rev 1.2

Cheers!

Is it possible for a single .mp4 video file to contain a virus if opened?

i just wanna know how avast reponds to detected malware.
I did a full scan on my pc and after that it showed me some threats that were discovered.
Does it immediately block it or refrain it from functioning? or does it JUST SHOW and let us know that we have to take action?

i know its a simple problem or question but it will help me big time in my situation. thank u

I was in Chrome and got the popup shown today at about 1530 CST. It popped up while I was in Chrome, but not any new or unknown sites. It takes up entire right side of my screen. I am assuming all of them are malware. The only identifier in the popups is byteportalbox.co.in. I have run Malwarebytes and McAfee but they both show my machine is clean. I have rebooted a couple times and as soon as I log in they return. I am running Win 11 and have not clicked on any of the popups. (that I know of)

Any help is appreciated.

https://preview.redd.it/md7vhqf2bekh1.jpg?width=397&format=pjpg&auto=webp&s=f96af14fe98be780bb54946d837598eb04254cf0

Hey guys. Recently I was attacked by some virus by installing an app from a random link. And that exe. File compromised my windows system. Luckily I changed my password and everything was good until about a week later just today when i turn on my laptop there were some PDFs saved on my screen. Saying my windows has been compromised all the passwords and with the guy who infected my windows. He demands for money he has sent a qr code. It also said he had access to my microphone, webcam meaning he stole my private life clips. He threatens me to pay him or else he's gonna leak all that.. he mentioned " do not try to reset the os" I'm worried sm rn. Idk what to do as I've never been through SMTH like this. Please if anyone can guide me about what should I do next to be free from this?

I would like to share my Linux Syscall Monitor project with you. It's a Linux process monitoring tool written in C that uses "ptrace" to observe system calls and generate behavioral reports.

Repo .

I welcome any feedback or criticism—whether it's about the code .

Today i did random full scan of my laptop with windows defender and it found one threat

Detected: Trojan:HTML/Redirector.AA!AMTB
Status: Quarantined
Quarantined files are located in a restricted area where they cannot harm your device. These files will be deleted automatically.
Date: 19.08.2026 10:59
Details: This program is dangerous and executes commands from an attacker.
Affected items:
containerfile: C:\Users\adon\AppData\Local\Mozilla\Firefox\Profiles\q1jz5817.default-
file: C:\Users\adon\AppData\Local\Mozilla\Firefox\Profiles\q1jz5817.default-release (GZip)

is this a serious situation? i don't know where i got it from i use ublock on firefox

3 months ago, i got a virus on my pc and lost multiple accounts. When i tried to find ways to solve it, i found out some virus can actually infect the router and other devices on the same network. Now even when i got kaspersky for my pc, i keep thinking other devices are infected and changing the router wont help because the infected devices will get the router again despite not seeing any clear symptoms. What can i do about this?? Is it just me being paranoid? Does factory reset on the phone remove all viruses? Do i need to replace my router? I forgot to mention this. I also downloaded a zip file for a pvz2 mod on my phone but resetted it. After that, i keep logging in to admin router on both my pc and my phone to check for weird settings and turn them off. Now im scared that i mightve created some hole for virus to get in. I even got a new router. Im too anxious now and would do anything for a peace of mind. I dont even know if replacing the router helps now as i find out that virus like switcher trojan or stuff like wannacry, vpnfilter can just infect the router when connected and others can just go straight to other devices without infecting the router.

Yes it was the official Monkrus site and lesson learned to not download cracks again. Was desperate with Adobe subscription prices lol. Anyway the crack setup failed with errors, and now Defender keeps forcibly disabling. I can enable Defender and get it to run a quick scan for 20ish seconds before it tells me no scan information available and disables again.

I have deleted everything downloaded and installed from Monkrus. I’ve checked through Task Manager and Task Scheduler and nothing seems off there. I know most likely reinstalling Windows 11 is the way to go, but is there any other solutions anyone has for me before I go to the last ditch effort of a Windows reinstall?

Anyone have an idea what this system file is? Should I worry about it?

https://preview.redd.it/lbyv1x95t8kh1.png?width=719&format=png&auto=webp&s=45f93340d640c2859c0e94a37ec0f3b5d3303308

​​Sent a zip file and the extracted file to Virustotal as well as the link I attached below, it says nothing is sketchy so far with all the three of them but i'm still sketchy about it.

Is the file actually clean? Is Virustotal trustworthy?

Links:
Virustotal: hxxps://www.virustotal.com/gui/file/ab3d5040a05e0ef87c70a0e37a395f6fd7b4b74c9eea71c69697e3b904cf57e8

The file I'm scanning and suspicious about:
hxxps://gitlab.com/capcut5373125/Pro/-/blob/master/README.md#download

08/19
Edit : Transferring blender files and word documents to my phone from this pc won't pass the malware unto my phone, right?

a few weeks ago i ran malwarebytes and i had a bunch of trojans, around 4.. i dont want to talk about how, im already embarrassed i had them for so long and didnt bother to look into it. anyways i deleted all of them using malwarebytes and changed my important passwords, however nothing has really been happening since and nothing had happened while i had them. terminals would randomly open but i wouldnt really pay mind to it, thats about it. are they planning something? is my accounts and computer still in danger? im sorry im so tech illiterate.

I revisited this malware variant that I came across in the wild to demonstrate to everyone how it works. Stay safe and I hope this helps someone learn something!

Just a few hours ago my discord account sent spam messages of pictures about the mr beast scam while I was gaming. After looking it up, I suspect it to be the mr beast infostealer scam. I havent seem to lost access to my accounts so far. Ive changed my passwords and enabled 2fa. I dont remember downloading anything malicious as of late. I have ran malwarebytes and it scanned 2 threats that i got rid of already Im not sure if that worked. I have also turned off my internet on my laptop. I really dont want to lose any of my files yet and Im asking for help on how to get rid of the infostealer.

I ran FRST and SecurityCheck

FRST: valiant-turtle

Addition: neat-vine

SecurityCheck: dusky-daemon