Questions tagged [malware]

Malware (short for Malicious Software) is a type of software designed to access a computer system without the owner's informed consent.

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Unable To Run Sudo On Terminal (Suspect Malware)

When I Run Any Sudo Commands I get: sudo: /etc/sudoers is owned by uid 501, should be 0 sudo: no valid sudoers sources found, quitting sudo: error initializing audit plugin sudoers_audit This behavior ...
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Unknown (possibly malicious) behaviour when executing .mkv file

Context: I was transferring files from my phone to laptop through USB. I was curious about one of the videos in the Telegram folder (which had a .mkv extension) and double clicked. Now normally when I ...
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Malicious issues found in program (RecentX) that reports as clean on virustotal.com [closed]

Trying a program called 'RecentX' (https://www.conceptworld.com/RecentX) on Windows which got great reviews, I had come across some worrying issues which were reproducible on every other PC it was ...
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How has my instagram account been hacked? [closed]

After Microsoft Defender detected some malware (trojan and others) on my Windows 10 account last weekend I quickly reinstalled Windows to avoid any security problem. However, today I have detected ...
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55 views

Should I do anything after formatting my computer because of malware infection?

Yesterday I realised that, after installing some software last weekend, Microsoft Defender was detecting several file on my Windows 10 document's temp folder. Some of them were deleted by the ...
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Is Windows safe from BadUSB/Rubber Ducky on lock screen?

If there’s computer with the login screen on, will plugging BadUSB/Rubber Ducky infect PC? Or is it only possible when you log in to Windows?
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43 views

Can computer get virus while on login screen?

Let’s say that computer is turned off and someone turns it on and the login screen shows up. If the person inserts malicious pendrive with autorun.inf while on login screen, will the computer get ...
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1answer
26 views

My PC got infected if executables of dubious origin were automatically downloaded? [duplicate]

I have a question. When navigating in page shorteners of dubious origin where there is too much advertising... And it automatically downloads a strange executable... and I immediately remove it (...
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32 views

How big a privacy concern is the fact that any program can access any file from home directory directory in Linux?

In Linux and Windows, a program can easily access any file from any directory using fopen (). We know how program data is stored in Linux distros in your home directory in .config. This means a ...
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24 views

Different Imphash for same PE file

I am analyzing a windows executable (C:\Windows\System32\xcopy.exe). The Imphash value calculated with Python is different from the one shown with PE studio. How can Imphash for a same file be ...
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52 views

Can I get infected by just downloading (not opening) file on Windows 10?

Today I received some e-mail to Thunderbird. It had image attached that I clicked: Which sent me to onedrive.live.com/download?... and automatically downloaded .tgz file. I am not even sure if the ...
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I clicked on a link which turned out to be a malicious advert. Should I format my computer?

I accidentally visited a sketchy website and clicked on a link which I think was a malicious advert. After that I think the site tried to download something on my computer but my antivirus blocked two ...
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Windows 10 installed Visual C++ after random restart? Turned off System Restore? [duplicate]

Basically, I came back to my computer after leaving it on and logged in (it locks itself after some time), and realized that it had restarted in the time I was away. Shortly after login and my on-...
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Attempted to do system restore, correct restore point overrun by Install restore points

I recently did some changes to my computer that resulted in unexpected and unwanted results. I had the sense to create a manual restore point before I did this, but I didn't notice this behavior ...
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41 views

What’s the difference between rootkit and RAT? [duplicate]

I know that both can give attacker remote access to computer. Is RAT easier to detect than rootkit? Where are they typically get installed? Can one make more damage than another? Which one is easier ...
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99 views

Uninstall Paragon HFS+ .msi

I am unable to remove Paragon HFS+ from my Windows 10 computer. The program is still listed after uninstalling using Add or Remove Programs. Running the command msiexec /x Paragon-607-PEU_WinInstallSN-...
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99 views

Keygen/crack/malware detected as virus only after unzipping

I'm wondering how come a keygen/crack are not detected as virus when it is inside a compressed folder. Only after the unzipping the antivirus detects it as a threat.
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Unknown caller of a deleted exe file

I uninstalled qBittorrent 4.3.3 and deleted the exe from startup folder. Now every few minutes I get a windows alert saying: Windows cannot find 'C:\Users\Name\AppData\Roaming\Microsoft Windows\Start ...
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1answer
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Will installing new Windows build remove any rootkits and trojans?

I have currently installed 2004 version of Windows 10, if i update it to 20H2 version, will i get rid of any trojans or rootkits on my computer? Where are those typically get installed? I don't want ...
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1answer
48 views

Can malware survive a reset? [duplicate]

In windows 10 settings, there's an option under Recovery for "Reset this PC". It allows you to choose whether to keep or remove personal files, and resets the computer. Using this option, if ...
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168 views

How do I go about investigating Windows Defender alert “VirTool:Win32/ExcludeProc.A”

I received the following notification from Windows Defender several times over the last week. Things I believe: It is malware Its attempting to hide things from Windows Defender Windows Defender was ...
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1answer
49 views

Store computer/admin password in the password manager

I have two accounts on my Mac: a standard user account for everyday activities and an administrator account. I always use the standard user account. I have a password manager (1Password) installed on ...
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Can keylogger record the admin password on macOS

I have two accounts on my Mac: a standard user account for everyday activities and an administrator account. When I need to do something that requires the admin rights like changing something in the ...
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1answer
83 views

Is it safe to run the memez computer trojan in a virtualbox vm? [closed]

I wanted to run the memez trojan in a virtualbox vm but i don't know if it has a vm escape code in it. i would disconnect the WiFi from the vm before I ran the virus. so is this safe or can it damage ...
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32 views

rundll32.exe running from non-existent directory (malware?)

My computer has been infected with some kind of a malware I haven't been able to idenitfy. I have tried multiple malware scanners and neither of them has been able to find anything. I have multiple ...
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1answer
47 views

Can a malware file in a .zip file be executed when testing the .zip file?

OS : Windows 10 Can a malware file in a .zip file be executed when testing the .zip file? I mean, for example, testing by 7-zip context menu 'test archive'. The .zip file has no password and just ...
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How to remove Kite Coding Assistant malware that keeps reinstalling itself? [duplicate]

Kite Coding Assistant is a REALLY annoying piece of software that installed itself when I installed Anaconda. It acts like rootkit malware. It starts running in the background as soon as I start up my ...
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OneUpdater Malware Removal, How do I delete the reg key?

I'm trying to delete the key for "OneUpdater". The registry tells me I can't modify it, delete it, rename it, etc. I'm admin. OneUpdater is malware. Any help is appreciated. Win 10 by the ...
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29 views

Stop all networking between guest OS and Host OS

I am using fedora on by virtual box as Guest OS for Malware Analysis. The Host OS is windows 10. I will be unpacking malware/virus on guest OS. But to ensure it doesn't cause any trouble with my Host ...
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Mac Big Sur repeatedly tries to open “Open Office” for no obvious reason. I suspect malware

Something is periodically (every hour or so) trying to open "OpenOffice" while I'm working in other apps. Because OpenOffice was previously downloaded onto my machine, I get a warning about ...
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24 views

How does on know that an app's code isnt the same as the public one?

Let's say I found a cool application but i'm not sure if its malware. But everyone says don't worry its safe because its open source, but how would I know if the actual exe's code is different that ...
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Kernel security check failure(s) over 36 hours of operation into kernel inpage error and system malfunction up till keys going unrecognized at POST

I've done all operations associated with driver purification and disk drive health updated malware defence. Ran into the kernel security check failures at seemingly random times. When just operating ...
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1answer
81 views

What is this drive in my computer?

I was trying to create a system restore point in my Windows 10 laptop. I noticed one of the drives had a weird name, like this ?\Volume{f2f20ba-117 . . . What is this drive? Is it potentially ...
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How can I remove Kindle ebook DRM using tools where I can be confident that they don't contain malicious code?

I just read the thread How can I remove DRM from my Kindle books? from a decade ago. I guess the first question is whether it's still valid for the latest Kindle formats. The second is, as someone who'...
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1answer
206 views

How do tech support scams work in windows? Is it malware, phishing, or how else would threats gain access to computers?

I'm currently working for Geek Squad at Best Buy in the front of the operation checking in client computers and I am frequently encountering bogus tech support scams which involves copious amounts of ...
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2answers
61 views

Determine what changed my desktop wallpaper

How do I determine what caused the change of my background wallpaper? Identify the programm/process if that was a malware, get event information, anything? Somehow find out why that happened. My ...
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27 views

Reset PC and Format External Drives Simultaneously

I've recently visited a webpage that I thought was safe but got a full screen pop-up of something that appeared to be malware. I immediately closed it and did a Windows Defender full scan. No malware ...
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1answer
25 views

Connect old, possibly unsafe HDD to Windows 10 PC

I have an old HDD from my former laptop which I've been using until around 2013. Now, after 7 years, I want to connect it to my HDD (with a SATA - USB adapter). I worry a bit about malware on said HDD ...
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28 views

I clicked on “show pictures” in a malware e-mail [duplicate]

I carelessly pressed “show picture “in a spam e-mail that was in my unwanted folder When i clicked the link just disappeared and no picture was shown.how worried should I be? I did a disk clean-up ...
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Wake on LAN Broadcast on Startup

I have Wake on LAN configured on a few of my devices (all Ethernet Connections). I have recently noticed when I start windows 7 on a laptop I have (wireless), when the logon screen appears (not logged ...
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22 views

About Malware occupying memory [duplicate]

Can a malware occupy memory without getting noticed by or displayed in "Windows Task Manager"? How can we detect such malware, if any? Can you give examples of such malware?
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17 views

What kind of malware activates itself when a new user created on Windows 10 [duplicate]

Today I have created a new user for my wife on my Windows 10 PC. And when I launched Google Chrome, it started with launchpage.org which is known as a kind of virus that is easy to remove via Regedit. ...
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Firefox Browser Hijacker “zapmeta.de” and “izito.de” on every google result, can't find a way to remove [duplicate]

First i noticed its coming from a nameless extension, i had to reset the browser cause i didn't find a way to uninstall it. Now it came back after at least one PC restart, so there must be malware ...
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15 views

Unidentified icon in Mac status bar

I have an unidentified icon that sometimes appears in my status bar (MacOS High Sierra). Graphic quality is low. It looks like a white "O" on an orange background, with an upward-pointing ...
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2answers
1k views

CPU usage 100% till i open task manager in a 4 months old laptop

I have had an i5 10th Gen machine for 4 months, but I can now see that the CPU usage is 100% till I open Task Manager and as the Task Manager opens, the usage reduces drastically and even comes to as ...
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70 views

Shannel error: a fatal alert was received at the remote endpoint. Code 20

I recently learned that I've had a cyberstalker for a year. I'm not tech savvy enough for this. I found this error message today in my event logs: a fatal alert was received at the remote endpoint. ...
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14 views

Malware that causes the taskbar to disappear and a fake Firefox application to install [duplicate]

Just need to ask the community if they've come across this malware that operates in 2 parts(that I've seen): Installs a program '.2.1.2.3' that makes the taskbar disappear except from the start ...
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34 views

Why would a .exe list it's original filename as .dll?

So, I think I got some tag-along nonsense with a browser extension or something. When I restarted my machine the other day, I got a couple of really wonky old .NET framework errors (big huge modals ...
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1answer
212 views

rundll32.exe making outbound TCP connection

I've been attempting to harden my network, and have taken some extra security precautions for the sake of learning, as well as.. to be secure. I've recently formatted and re-installed Windows 10, and ...
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28 views

Is it possible to monitor RDP Sessions or Connections to a PC and Is there a good sessions monitoring program that will log remote sessions?

Is it possible to monitor RDP Sessions or Connections to a PC? I'm hyper-sensitive and a little paranoid about malware with dormant RDP and FTP-enabled code. Is there a good sessions monitoring ...

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