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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1answer
38 views

Infection with virus just by extracting an archive (zip/rar/iso)?

is my Computer compromised with a Virus, when extracting an archive like zip/rar/iso with WinRAR, which contains an (Virus-)downloader.exe even when i didn't start the executable? and the Anti Virus ...
-1
votes
1answer
46 views

WD external hard drive some folders can not be viewed due to a possible virus?

Now I am using a windows 8.1, Samsung laptop, with WD Elements 1tb. The problem is one day some folders in my external drive decided to not show up. I figured it might be due to some virus affecting ...
0
votes
2answers
124 views

Why does antivirus on my host machine act up when VirtualBox is infected with a virus?

I'm testing vulnerability and severity of certain viruses on my Oracle VirtualBox (Windows XP) and virtual machines internet connection is set to NAT. The issue is that my actual HOST PCs (Win10) ...
0
votes
1answer
39 views

Reinstalling Windows and removing viruses from other partitions

Does reinstalling a fresh Windows 10 on partition C remove viruses from other partitions, e.g. D & E, of my hard drive?
0
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0answers
25 views

How to analyze a suspicious traffic under linux machine?

Often under Linux machine, networks are protected by firewalls. This protection, though necessary, do not detect external attacks. Indeed, a Firewall is designed to block unwanted network flows while ...
0
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0answers
155 views

Decrypt files encrypted by LeChiffre ransomware

Over the weekend, my personal server got hit with the LeChiffre ransom ware. Unfortunately, they were able to get in due to an insecure Active Directory account. I've since disabled all accounts and ...
1
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2answers
59 views

How to overcome antivirus false positive error

We develop software which will upload the files to a website. We are facing the false positive error from different antivirus vendors. We have update file, downloader exe(which download the files from ...
5
votes
1answer
238 views

Can my Linux-mint become vulnerable after updating?

According to Linux Mint's blog post: The website of linux-mint is hacked and some ISOs are replaced with backdoored operating system. I am installing my operating system from a few weeks ago. ...
-5
votes
1answer
81 views

Is virtualbox a virus? [duplicate]

I know a lot of people have asked this before, but I just wanted to clarify, because when I was in my virtual desktop, and I went on a site and my antivirus on my host machine went off saying that ...
4
votes
1answer
163 views

How to remove cryptowall encryption

Please help me urgently, Because My all files are encrypted by unknown virus named, 'CryptoWall encryption'. I attached one screenshot, which is provided by this virus.
2
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2answers
564 views

Purpose of :A when creating virus (Ethical Hacking please)

I am studying how to make simple virus (for Ethical Hacking in Virtual Computer) This video gives demonstration, https://www.youtube.com/watch?v=vkxtOr2RLbY In short, you create .bat file with ...
0
votes
0answers
27 views

Dialog Box pops up every few days

This dialog box pops up automatically every few days, I have no idea what it is. I ran a full scan with my anti-virus but it didn't detect anything.
0
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0answers
50 views

CPU is fixed at 100% usage

I would like to start by saying that I'm aware that there are a lot of questions with the same title but I would like to say that they are very specific to their own problem. Unfortunately my problem ...
1
vote
0answers
50 views

Windows And Application Settings Disabled By Administrator/Organizer on a PERSONAL computer

I am not able to change some of the settings because they are enforced by my Administrator/organizer, but the catch is that my laptop is a private/personal computer that I purchased myself and is not ...
-4
votes
1answer
190 views

Fat fingered YouTube, got some “fatal-crash” website [closed]

So I was typing in “youtube” (in Chrome using a Windows 7 machine) and fat fingered it to “gyoutube,” I ended up at some site with the address http://fatal-crash.xyz with a bunch of additional stuff. ...
0
votes
1answer
39 views

PC infection suspected [duplicate]

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
0answers
24 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
54 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
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0answers
59 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 ...
1
vote
2answers
48 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 ...
-3
votes
1answer
57 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
44 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 ...
0
votes
0answers
20 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 ...
3
votes
1answer
8k 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 ...
1
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0answers
23 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
152 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 ...
6
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: ...
0
votes
1answer
67 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
20 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 ...
0
votes
1answer
23 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
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0answers
32 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 ...
1
vote
1answer
90 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: http/...
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votes
2answers
143 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 ...
0
votes
2answers
120 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 ...
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 ...
1
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0answers
35 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
52 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
64 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: http://cupons....
1
vote
1answer
113 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 ...
1
vote
1answer
32 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 ...
-1
votes
1answer
282 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 ...
6
votes
3answers
301 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 ...
0
votes
1answer
289 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
34 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
14 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
476 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 ...
0
votes
1answer
83 views

Computer possibly hacked. Now what

I think someone somehow managed to gain remote access to my computer and was able to log into my ebay account and purchase some stuff. I was noticed the suspicious activity, and yanked the power cord, ...
0
votes
2answers
2k views

“svchost.exe (LocalServiceAndNoImpersonation)” - Is this a virus/trojan?

Looking at the screenshot you can find that there are two svchost.exe. One is svchost.exe (NetworkService) and other is svchost.exe (LocalServiceAndNoImpersonation) svchost.exe (...
1
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1answer
277 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 "...
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votes
2answers
46 views

Are there posibilities for someone to break into my computer other than having installed malware first? [closed]

Mostly interested about OS X, GNU/Linux. Assume a default configuration, not too weak, not too hardened. Exclude downloads of malware or physical access to computer to install malware.