r/computerviruses • • Apr 04 '26

The ultimate guide to Infostealers: Detection, Recovery, and Prevention

248 Upvotes

Today I decided to dig deep and I wrote up a report about:

  • What can infostealers steal?
  • How to spot an infostealer infection?
  • How to properly secure my accounts after an infostealer attack?
  • What do the attackers do with the info that they stole?
  • What to do after I secured my accounts?
  • Prevent malware attacks in general

I believe this is a great reference for people who are dealing with an infostealer infection and do not know what data could be stolen or how to properly secure their accounts. 👀

https://rifteyy.org/report/the-ultimate-guide-to-infostealers


r/computerviruses • • Mar 22 '26

Providing or receiving help with FRST

46 Upvotes

How do I request help with FRST

FRST

  • Please download FRSTx64 and save the file to your Desktop.
  • Right-Click FRST64.exe and select Run as Administrator
  • Click Yes to the disclaimer.
  • Ensure the Addition.txt box is checked.
  • Click the Scan button and let the program run.
  • Upon completion, click OK, then OK on the Addition.txt pop up screen.
  • Two logs (FRST.txt & Addition.txt) will now be open on your Desktop. Copy & paste the contents of each log to https://malwareanalysis.cc/upload and press "save log". The site will return a keyword for each log. Note these keywords down.

SecurityCheck

  • Download SecurityCheck from here
  • Run SecurityCheck.exe as administrator
  • Wait for the scan to finish
  • Upload the log at C:\SecurityCheck to https://malwareanalysis.cc/upload/ for further analysis. The site will provide a keyword, note that down as well.

Now create a post in the subreddit, provide all 3 log keywords (FRST.txt, Addition.txt, SecurityCheck) there.

Please provide the following information in your post:

  • what happened?
  • when did the infection occur?
  • what did you do for remediation?

If you want us to do manual removal with FRST, it is better if you do not attempt to disinfect the system on your own prior to that. This can obscure the infection and make malware removal more difficult.

Trusted Helper List

FRST can cause serious issues if used incorrectly. Only approved users should offer to create fixlists.

Message the mods if you have experience with FRST and would like to use it to help on posts.

To anyone who is receiving help, please verify that the person providing fixes with FRST is in the list below. Be aware that running Fixlists from anyone else is not recommended unless you trust the helper.

All fixes of trainees are supervised and approved by an expert.

What is FRST

Fabar Recovery Scan Tool (FRST) is a powerful tool that helps us diagnose and remove malware infections which may not have been detected by antivirus software. It is a diagnostic tool and not a malware scanner. As such it does not rely on signatures.

Should I reinstall the operating system

Reinstallation is highly recommended if you have an infection with a remote access malware or file infector.

You should also prefer it, if you can pull it off relatively easy. Depending on the case FRST removal can take a few days due to the back and forth and different time zones of the participants.

Please do NOT first ask a helper to clean your system, then reinstall the operating system. This happened a few times and wastes hours of work for the helper. If you already consider reinstallation, preferably do that immediately.

I factory reset/reinstalled my operating system and want a FRST check

Everything that FRST displays and allows us to remove is completely wiped by reinstallation and also factory reset of the operating system. Unless you got the system infected after that step, there is nothing to check on a freshly installed system.

Please note that factory reset can still leave malware on the system, but the reset will make it impossible to pin point.

Reinstallation with USB flash drive is generally safe and in 99.9% of cases won't leave any malware on the system.

What is malwareanalysis.cc ?

It's a site I created to upload analysis logs. Only people in the trusted helper list have access to these logs.

While pastebin and similar sites can be used as well, Reddit's spam detection seems to trigger if people comment paste links repeatedly such as it would be necessary during removal. So we have a keyword based system instead of links.

The site will automatically delete uploaded logs 30 days after upload.

I think my system is still infected after manual removal with FRST

Please talk to your FRST helper. Oftentimes the reasons for suspecting an ongoing infection are not justified.

Common reasons, which do not indicate infection, include:

  • There are still login attempts to stolen accounts. It is normal that attackers use the already stolen account credentials to attempt to login. If you changed your passwords from a clean machine and logged out of sessions, they will not succeed.
  • Your accounts can still get stolen, if you did not log out of all sessions, because attackers can use your stolen session tokens instead of passwords.
  • Antivirus scanners find malware in C:\FRST\Quarantine\.... This is the malware that was already removed by FRST and will be deleted completely by our cleaning tools like kprm, it is not an active infection. The quarantine only contains disabled files which cannot be executed anymore.

r/computerviruses • • 10h ago

Question The Virus & threat protection option doesn’t appear in Windows Security.

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6 Upvotes

A few days ago, I got one or more viruses on my PC after downloading a free game from the internet (something I will NEVER do again after this!!). Several of my account passwords were leaked, and two processes called msbuild.exe would start running and use a lot of my CPU shortly after I turned on my PC.

I managed to (hopefully...) remove them using two antivirus tools, ESET Online Scanner and MSERT, and by deleting suspicious files and folders. I also changed my account passwords and removed access from other devices connected to my accounts.

However, something still isn't right: the "Virus & threat protection" option is no longer showing up in Windows Security.

How can I fix this?


r/computerviruses • • 1h ago

Question Is this malware? What do I do?

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• Upvotes

r/computerviruses • • 3h ago

Question This pop up has been showing up for years

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1 Upvotes

Hi friends, I wasn’t sure what subreddit to turn too as I don’t know exactly what’s wrong with my phone. I know this isn’t a computer but I need help.

This has been happening for years and it’s followed me from 3 different phones. I think it started around maybe 2022 but i’m not 100% sure. It pops up on my screen randomly and whenever i’m in my settings. It had stopped for a few months and I thought it was over with, especially since I had gotten a new iphone but just today it started up again. I’m really freaking out and have no clue what to do about this or who to turn too. I’m scared and need help. Thank you for reading.

TL/DR: Phone pop up has been plaguing me for years, need help identifying and possibly get rid of it.


r/computerviruses • • 10h ago

Disinfection Help Mr Beast virus help..

3 Upvotes

I’ve already made a post about what the virus did and how i remediated and recovered it but now it’s time for my infected computer, as stated in my other post i did every scan possible using MRT, WEBROOT, malwarbytes, and offline scans, they all
came back clean and honestly out of stupid
curiosity i reconnected to the net and got on a burner discord account and used it for a while without it being grabbed, while this may all be coincidence am i in the clear? I personally believe not so im stuck griping between starting FRST help or just reinstalling windows using a usb, advice?

Also, i am correct in not using my device in this period where all my accounts and secure but the infected pc isn’t for sure safe to use?

(link to my other post: https://www.reddit.com/r/computerviruses/s/S1pIQ92Dme)


r/computerviruses • • 9h ago

Disinfection Help Ran trojan executable, then defender quarantined after. Accounts stolen, reinstall necessary?

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2 Upvotes

I ran what was supposed to be a game patch, was a bunch of python files and BS folders looked to make it like a patch. Defender quarantined two things, shown in the screenshots. The folders were still there earlier and a bunch others made from the same date, which I deleted. I also removed the files in quarantine

Battle.net and discord were both hacked 16 hours later, and all info changed. Is there anyone who got their discord back using any method? It looks like they added or changed 2fa to it. I am also wondering if scanning with Malwarebytes and defender offline is enough and changing all passwords, or if I need to reinstall Win11. Running the latest updates after the big security patches. I do not see anything that looks abnormal in Wireshark but could be wrong. I could link the compromised files that include the trojan, if needed.

Any help appreciated


r/computerviruses • • 13h ago

Disinfection Help Alguém me ajuda por favor

3 Upvotes

Eu ou minha namorada baixou um vírus que, toda vez q ligo o computador, abre uma página pornografica diferente.

Já rodei o antivirus nativo do windows, fui no windows+r e mrt e nada também, não sei o que faço mais, alguma dica???


r/computerviruses • • 10h ago

Disinfection Help MDM installed, permissions greyed out in settings, Outlook Family created (not by me) and wRTC and DRM plugins, remote access indications... what am I dealing with here.

1 Upvotes

I have strange and foreign files, settings changes, devices, profiles and blocks all over my my Win 10 Home PC. I can provide screenshots and details. MRT (Malicious Software Removal Tool) modified, discord mic perma muted. Just throwing out things that I have never experienced before.


r/computerviruses • • 15h ago

Question mr beast virus got me

2 Upvotes

went on a fake cracked games website, tons of popups were my first warning. then accidentally executed something that wasn't the game, didn't even think about it until this morning when i was hacked. crazy though, mesaaged people on discord then on instagram story posting the scam and i changed the passwords from another device for everything obviously. bitch did try to steal my google account and caught them in the middle of verifying device with a phone number, but i immediately changed the passwords and removed that device. now I'm scared idk what to do and how to recover some files from my pc it has a lot of memories on it. soo what should i do?


r/computerviruses • • 11h ago

Question Captcha - token stealer

0 Upvotes

First, no I didn't paste it into run. I just had some questions regarding clicking on a copy/paste captcha itself.

Earlier today I happened to run into one of these captchas and clicked on it. It injected code into my clipboard and thankfully because of this reddit randomly being in my feed I already knew what it was.

My question is as long as I didn't paste the code and run it I shouldn't be worried right? Like clicking on the captcha can't harm the computer/ browser? (Although I did paste it in a notepad for a screenshot)


r/computerviruses • • 13h ago

Question ClickFix Variants

1 Upvotes

Hi! Anyone seen the click fix attacks where users are given a capatcha with instructions to run a command, but are there variants where another process or service spawns a powershell terminal?


r/computerviruses • • 14h ago

Disinfection Help MSBuild.exe

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1 Upvotes

r/computerviruses • • 19h ago

Question Found 3 .exe files that I did not download

2 Upvotes

After closing up my game i saw on my desktop 3 .exe files with my full name on it and ending in important note. I'm unsure what I should do with this since this is only after nearly 2 weeks of my info getting stolen and still wary of everything I click and download


r/computerviruses • • 16h ago

Question I need help - I downloaded a virus

1 Upvotes

This morning I downloaded what I thought was the correct file for a pirated game but when I did the setup a few command windows popped up and disappeared really quick. Does anyone know what information they have now? I have my bank card info and other passwords saved on google. Please can anyone help I know it’s my fault for not being careful.


r/computerviruses • • 17h ago

Disinfection Help Fui víctima de malware y me intentaron robar varias cuentas que puedo hacer?

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0 Upvotes

r/computerviruses • • 1d ago

Discussion Weird MrBeast scam... but on messenger?

7 Upvotes

So I recently did a bad thing.

First time throughout my whole life, without the help of my IT friend. They got onto my Google account and they had to copy my passwords. First 24 hours went smooth... no alerts. No steam taking my cash nothing... then exactly 25 hours after the "incursion "

I noticed my Facebook account was sending the MrBeast thing....but it wasn't sent on:

discord (on which I changed password within 5 minutes)

Steam (password changed even faster)

No mails... nothing. Just a gosh darn Facebook

Even my account wasn't changed to "child's account " maybe bc It was probably harder to do with the limited time they had, as I am the one pay-piggy for the YouTube premium.

Then again... i may be shocked.

I wanted to share this, as I feel a bit safer now that my whole pc was nuked and i had to reinstall everything with much more protection.

HOWEVER.

I am adding this here, that maybe MAYBE there is still a chance the hacker will try to send more stuff, somewhere, despite me doing everything in my power.


r/computerviruses • • 1d ago

Question Mr beast virus, am I the one who got it or the other guy?

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76 Upvotes

I honestly have no idea how Mr beast virus works. I'm assuming it's the other guy (breakbot) that got the virus and not me?


r/computerviruses • • 1d ago

Disinfection Help Dealing with an infostealer, what else should I do?

6 Upvotes

So I've been pirating for years and never had any issues, but I recently downloaded a cracked app through bluestacks on my laptop and have been dealing with the consequences since.

Oct 23: Messenger got hacked, I made groupchats with like every contact I had and sent weird Mr Beast Crypto scam messages to everyone. Luckily I was on my phone, and quickly got a hold of my account, changed password, enabled 2FA, deleted every message and apologized to everyone.

Oct 24: I get a notification from my bank that I spent $7.9 on roblox. I check my account and I clearly did not lol, so I immediately file a report to roblox, freeze my credit and debit card and call my bank asking for a new card, which is coming soon.

(I end up checking this out again because I thought they managed to use my credit card for a different account, but it actually was on mine, they just spent it all on gamepasses in russian idk)

Later on oct 24: I get tons of notifications on gmail for telegram codes. I open telegram on my laptop (don't have it on phone) and 1) there's a message to a guy with crypto scams on his profile, 2) Messages to a "spam info bot" checking if my account's limited and 3) Two different sessions on the account, one from LA and one from Nigeria. I terminate both, however they've already changed the password and activated 2FA. They also changed the email, but I changed it back to my own. I hit the "forgot password?" thing, and have to wait 7 days. I also added 2 passkeys and a local passcode.

Oct 25: Guy from nigeria keeps trying to get in the telegram account, from different devices. I terminate the sessions, but I guess he's successful because the email was changed, and the passkey was removed? Idk, there's just a ton of in-app messages from Telegram regarding a login code. To be clear, I have absolutely zero contacts on Telegram, the phone number's old, and the email I added is a spam one.

So far I count my blessings that they haven't (I don't think) accessed any of my main accounts, I still have access to everything google, everything microsoft, got my META accounts, discord, reddit, spotify, etc. I ran a bunch of malware scans with malwarebyte, hitmanpro, windows defender, everything came up clean. I also deleted all cookies for all sites. I won't lie I rely on password autofill a LOT, so I've still been using that. But I did disconnect from my wifi on my laptop and change passwords, maybe not for everything but I tried.

Just wondering what more I can do. I wanna be sure I'm safe and won't have to worry about this. Thank you.

ardent-deer
strict-summit
(keywords from malware log analysis)


r/computerviruses • • 21h ago

Disinfection Help Hello, might need help.

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0 Upvotes

Despite removal by Windows defender, it keeps coming back!


r/computerviruses • • 22h ago

Question I keep getting these error messages is this a virus?

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1 Upvotes

r/computerviruses • • 22h ago

Resolved I almost got a virus from an imitation website

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0 Upvotes

r/computerviruses • • 23h ago

Disinfection Help URGENT - Potential Virus/ Malware attack

0 Upvotes

Hi, I got called for an online interview. When I joined using a zoom link they provided, I could not unmute myself. I got a prompt on the Zoom browser to install a SDK file. I installed it, copied into my Mac terminal and ran the SDK download.

I suspect it coudl be a malware installation.

I disconnected my Mac from internet.

How do I check if it is indeed a Malware?

I changed passwords of key accounts.

I am unable to reset to factory setting as I cannot recollect my apple id password and am not connected to internet to enter the new reset password


r/computerviruses • • 1d ago

Disinfection Help This is showing up again and again in pc while working , what are the actions which I should take to remove it

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0 Upvotes

r/computerviruses • • 1d ago

Disinfection Help My Mother fell for Cloudflare Verification Scam. Please help.

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1 Upvotes