A software program capable of reproducing itself and usually capable of causing great harm to files or other programs on the same computer.

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2
votes
1answer
5k views

How to remove write protection from USB stick

I have followed up the below process in cmd: DISKPART> attributes disk clear readonly Disk attributes cleared successfully. Even if I do that it displays Read-only:yes: DISKPART> attributes ...
2
votes
4answers
27k views

Laptop is asking for password (which I never set), even when without hard-drive

One day my laptop got infected by a virus, and I cleaned all those suspected infected files with Avast! Antivirus. I didn't check what kind of files are cleaned, since there are hundreds of it. Now I ...
0
votes
1answer
27 views

PC infection suspected

I have a feeling that my PC is infected with a RAT (remote administration tool). It all started when I logged on an mmorpg (online game). It's not popular and at this time I had a port open by me ...
0
votes
3answers
3k views

CPU usage 99% constantly

My computer is running windows 8, and suddenly started running slowly. When I open the task manager, it tells me that the CPU is using 99% - sometimes the disk usages jumps up as well. The strange ...
2
votes
1answer
6k views

Many Personal Files turned into .micro files

Yesterday, I shut down my computer and went to sleep. I woke up today, went to school, came back and now when I turn it on, it shows this .TXT file. Many of my files have turned into .micro files, and ...
16
votes
5answers
15k views

Unreasonable RAM usage in Windows 7

I have a fresh install of Windows 7, and my RAM in normal startup goes up to 2.5GB. I looked at Task Manager, and there's at least 1.5GB missing from there and in Resource Monitor as well. There's no ...
4
votes
1answer
61 views

Does Keepass protect passwords from malicious software like viruses?

If a computer got infected with a virus or a trojan and the user interacted with Keepass, is there a chance that the malicious software would be able to get the password database? In other words: ...
3
votes
4answers
129 views

How can a flash drive spread a virus?

How can a virus be spread from a USB flash drive besides the autorun.inf? Can boot sector viruses infect thumb drives?
-1
votes
0answers
23 views

PC. Windows 8. Cannot run Windows Defender

I found "Software Informer" in my PC, and I thought it was malware, so I installed some Anti-virus. And now, I "cleaned" "Software Informer" using those Anti-Virus software, and now, when I ...
2
votes
2answers
47 views

Can Sophisticated Malware, Spyware and Viruses Read Files?

I've recently began encrypting my personal files using veracrypt. I've got my resume, which, obviously contains personal information (name, address, phone number etc.) A little bit of reading here, ...
0
votes
0answers
22 views

Haven't found DNS Unlocker in the Task Manager. Where could it be?

This morning I found DNS Unlocker on my workstation, and since then I am trying to remove it. I guess, I visit some wrong website yesterday during the lunchtime. I really need help with this. There’s ...
5
votes
4answers
2k views

Most of my files in my Windows 8 got encrypted; Windows is still running

Around 90% files of my files, including *.doc, *.jpg, got converted into *.micro! There are two files left: help_recover_instructions+iyf.html help_recover_instructions+iyf.txt These files say: ...
1
vote
2answers
27 views

Should quarantined files be deleted?

Windows Defender detected a virus on my computer and quarantined it. Is it better to leave it as it is or to delete it? In general, what are the circumstances under which one must not delete ...
-2
votes
1answer
39 views

Got a virus sitting right here [duplicate]

Yesterday I tried to update windows the thing failed repeatedly, now I can not open anything that require administrator command. I am looking at two programs installed yesterday in the "Program" ...
0
votes
0answers
28 views

How do I determine if this ad pop-up is a malware on my laptop/router or my ISP just being greedy?

Request: Kindly do not mark this question as a duplicate without reading the whole description. I know this sounds like any other malware-infection question, but I request you to please read the whole ...
1
vote
1answer
150 views

periodic error dialog (default Email app related) on Windows 10, appears to be CortanaMapiHelper, should I be concerned?

I'm running Windows 10 64-bit. Periodically (maybe daily?), I get the below dialog appearing on my machine. I normally just click OK and move on. This time, I ran Process Explorer, then used the ...
0
votes
0answers
17 views

Infested with White Screen Virus? [duplicate]

A few days ago my screen turned completly white and I was not able to do anything. I had to kill my PC with the power-button and restart it. Everything worked fine so I thought is was just some kind ...
319
votes
18answers
250k views

How can I remove malicious spyware, malware, adware, viruses, trojans or rootkits from my PC?

What should I do if my Windows computer seems to be infected with a virus or malware? What are the symptoms of an infection? What should I do after noticing an infection? What can I do to get rid of ...
0
votes
3answers
12k views

How do I view files inexplicably hidden on an external hard drive?

Yesterday I traded some files with a friend by hooking up an external hard drive to his computer. I had created a folder with some files in it for him and likewise created another folder for him to ...
1
vote
0answers
22 views

Files on my system renamed and file types also changed automatically [duplicate]

Files on my system renamed and file types also changed automatically on Windows 10. When I reasearched online I found that CTB Locker, ransomware are some of the viruses that do that. But I ran my ...
1
vote
2answers
45 views

What is RzKLService.exe?

So... I installed Java (I know its unsafe) because I need to use some installers that require Java Runtime. Also, after searching for a program that could do something to me, I saw a site, I clicked ...
0
votes
1answer
20 views

AVG errors (freezing, not emptying vault, etc.)

Every time I open the AVG GUI, it works fine. Until I click something. For example: Scan Now. When I do click it, the GUI just crashes. Eventually it turns fine, until a few seconds after. Not ...
0
votes
1answer
60 views

Can harddrives destroy motherboards/bioses?

I have a PC that went from bad to worse. It started with harddrives problems that were not treated, and then the memory went bad according to a memtest. Now, the motherboard won't work. I moved the ...
0
votes
1answer
18 views

AVG Uninstallation Vault

Will clicking "Remove Virus Vault Contents" during the AVG uninstallation removal process permanently delete the contents in the Virus Vault from the computer, or remove them from the vault by ...
3
votes
2answers
1k views

Security Center won't start after a malware attack

Today, I got a virus/malware on my computer. I first scan with my antivirus/malwarebytes/superantispyware to clean it. I ended up cleaning all of it. No more ads pop up. However, my security center ...
4
votes
2answers
2k views

Unknown linux process with random command

I have a unknown process when I run top: When I kill the process it is coming again with another random name. when I check the rc.d levels and init.d there are many random name similar like this ...
0
votes
0answers
27 views

Trogan.GenericKD keeps appearing - worth wiping machine?

As the family tech support, I got a call when my folks started having some classic signs that they somehow got a virus. They have Sophos installed through a work program, but I guess it did not catch ...
-2
votes
2answers
82 views

How to stop every batch file opening as a process named cmd.exe as seen in task manager

This is very complicated. I'm developing a malicious batch file just to test myself. This will be done at the startup. what I have is Three + Six (hidden) Batch Files. First file makes six other ...
1
vote
1answer
71 views

Hacked router affecting linux devices

The router of a friend of mine has been hacked, his android phone can't visit webpages with any kind of ads because it gets redirected to another site (this: ...
0
votes
2answers
45 views

Can a virus from a external drive end up on the host computer? [duplicate]

If I connnect a external drive to a computer that has viruses, and somehow these viruses get on the external drive, like someone copying infected files on it or whatever, and then I connect this drive ...
1
vote
2answers
400 views

My Laptop sound suddenly went off

My Laptop's sound suddenly died on me. I had some issues with Viruses & anti-viruses recently :/ I'd uninstalled my previous anti-virus AVG... but apparently it hadn't completely uninstalled.. ...
5
votes
8answers
17k views

Chrome works only outside of sandbox?

I have been trying to solve this problem for a long time. I have been using Chrome for more than 4 years, it is the best browser for me. Suddenly, Chrome stopped working. I tried uninstalling it and ...
0
votes
0answers
43 views

Possible Virus attack [duplicate]

Recently I scanned my Windows PC using Avast and it showed the presence of some weird malware in the result. It couldn't remove all of them nor it could move all the malware to the chest. Now I am ...
7
votes
1answer
28k views

Files names in pen drive turned into gibberish text

Recently my uncle gave me his memory card from his phone telling me something is wrong with it.When i tried to check the contents of memory card this is what i found(take a look at screenshot). I ...
2
votes
0answers
33 views

wonderlands.com annoying pop-up redirects [duplicate]

Dear moderators This question is not a duplicate, as it is about a special case, not a general question. please open this up and let the problem be solved, as this relates to so many people. you may ...
1
vote
1answer
39 views

are there any rootkit/virus/malware/etc.. that a windows 7 factory install could leave behind?

can any sort of malware/ rootkit still be on my computer after a factory install? my dell inspiron running windows 7 had(maybe still does) some sort of malware (a rootkit maybe) at its worst point it ...
0
votes
1answer
44 views

Unwanted Script being added to all HTML pages in all browsers

I don't know why but this has been happening for a while now: In every browser (Chrome, Firefox, IE) there is always a script attached at the end of the code. That's the script: ...
6
votes
3answers
289 views

What just happened to my PC?

I was trying to open a .png picture today and clicked edit instead of open, which in my opinion wouldn't affect anything. However, most likely coincidentally, as soon as I clicked edit, a large number ...
1
vote
1answer
65 views

There are no decryptor tools for CryptoWall, right?

Just want to make sure there is no decryptor tools (those that use leaked private keys) for the CryptoWall variation of the virus before we go and do the undoable? And are there any cases of people ...
3
votes
3answers
4k views

How to remove “Ads by AdFreeApp” Malware in Google Chrome?

I have been looking all over the internet, to remove this Google Chrome based malware. I have encountered such malwares in the past, and I was able to remove it by disabling the extensions, delete ...
-1
votes
1answer
63 views

Windows 10: Unable to open processes as Administrator

I'm having a problem I found today: I'm being unable to open any app in Administrator mode in my Windows 10, most notably Task Manager won't open. (any app in normal mode can be open such as Firefox ...
1
vote
1answer
28 views

For email client programs, does having the reading pane on indicate the email has been read [closed]

When the reading pane is on and messages can be viewed without opening them, is this the equivalent of reading an email? I mostly use Microsoft Outlook 2013 but I am looking for a general answer for ...
2
votes
3answers
6k views

IP Helper Virus?

Lately I've been having trouble browsing the internet on my computer, where it seems to take a really long time to connect to websites, or it just seems that the internet is just not responding at ...
2
votes
1answer
193 views

How to lockdown a computer for use in a public area?

So I live in an apartment complex with a few hundred people. There are two all-in-one windows 7 PCs in the lobby for residents to use. Oddly enough they keep mysteriously getting infected with viruses ...
0
votes
1answer
138 views

Windows 8.1 suspicious user account keeps getting created

A new user account is automatically created again and again no matter how many times I delete it. It is a random string ("raxxujpxh") that appears as the user name. Does anyone know what might be ...
0
votes
1answer
167 views

Redirect pop-up to wonderlandsads.com malware for webbrowsers [duplicate]

My PC has been infected with a malware that opens pop-up to some ads, mostly in my native language (Persian) but from (wonderlandads.com), when I click on a link or in an input box in StackExchange ...
0
votes
2answers
30 views

Is virtual machine isolated from host virus or backdoor from data protection?

I'm wondering whether it's safer to read some data inside a virtual machine in order to protect it. If I have a virus infected windows host, is it trivial for the virus to access the data I read ...
0
votes
1answer
13 views

Does it help to run stuff in virtual machine for privacy purpose?

Let's say I have windows but I read my e-mails inside a linux virtual machine. Are my e-mails a little more protected from a backdoor affecting windows or is it trivial for the backdoor to access what ...
1
vote
1answer
78 views

Router logs show constant unknown port mapping (forwarding)?

Do I have a virus or trojan? Should I be worried? What’s going on here? I’m currently running Debian, and there are records like this for every day since these first records showed up. I ...
27
votes
4answers
33k views

Is my host machine completely isolated from a virus-infected virtual machine?

If I am running a Windows 7 virtual machine on a Windows 7 host using VMWare or VirtualBox (or anything else) and the virtual machine is completely overloaded with viruses and other malicious ...