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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16answers
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How can I remove malicious spyware, malware, viruses 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 ...
95
votes
23answers
12k views

How can I make a Windows PC bullet-proof for home users? [closed]

I realize that virus-proof on a Windows PC is far fetched, but in the interest of keeping time spent as the "family-tech-support" to a minimum, I am looking for ideas to lock a computer down to the ...
4
votes
1answer
70k views

How to resolve BackgroundContainer.dll error on startup?

When I start my desktop it gives me an error about BackgroundContainer.dll. How to get rid of it? I found nothing when i started regedit.exe and searched (F3 or CTRL+F) for BackgroundContainer.dll ...
76
votes
15answers
43k views

Can AVI files contain a virus?

I'm downloading an AVI file via a torrent, but my anti-virus detects something. Is it possible that the AVI file contains a virus? It is quite weird since the torrent has many positive reviews.
61
votes
13answers
10k views

How is Linux not prone to viruses, malware and those kinds of things?

How is Linux protected against viruses? This question was a Super User Question of the Week. Read the blog entry for more details or contribute to the blog yourself
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votes
8answers
5k views

UAC being turned off once a day on Windows 7

I have strange problem on my HP laptop. This began to happen recently. Whenever I start my machine, Windows 7 Action Center displays the following warning: You need to restart your computer for ...
19
votes
6answers
1k views

Should I worry about malware on Linux? [closed]

I don't run an antivirus on Linux ( most people I don't AFAIK ) and I'm not at all concerned about any form of malware or spyware or any other_bad_ware. Should I by concerned? Of course I don't ...
6
votes
4answers
89k views

How to restore Windows Firewall after some malware deleted its service?

Yesterday I visited some web site, and apparently got infected via some Flash exploit. Microsoft Security essentials immediately kicked in, and displayed a warning about four items: > ...
3
votes
5answers
10k views

How to remove a rogue extension labelled “Installed by enterprise policy”

I found a rogue extension (likely malware?) that I cannot removed, as the delete icon is greyed out and the extension says "installed by enterprise policy". I have tried running Spybot Search and ...
3
votes
2answers
8k views

How to manually edit the search providers in Windows Internet Explorer 9

On a Windows 7 system, the search provider has been hijacked, and keeps prompting us to change it when Internet Explorer 9 starts up. It brings up the Manage Add ons dialogue, and we can click on any ...
3
votes
4answers
685 views

Virus / Malware: Explorer window with strange user logged into Hotmail [duplicate]

Possible Duplicate: What to do if my computer is infected by a virus or a malware? I was looking into a PC, the user of which had complained that he couldn't connect to the internet and ...
6
votes
1answer
2k views

Windows 7 UAC (user access control) is being disabled on every reboot

To put it simply, I noticed UAC was disabled so I enabled it. I was prompted to reboot the computer for the changes to take effect. Upon my reboot I checked the settings again as I hadn't disabled UAC ...
54
votes
6answers
3k views

Is there a point in installing antivirus on Ubuntu?

I have recently started using Ubuntu. I am wondering about the point of installing antivirus programs on Ubuntu. On SuperUser, I found the opinion that it only detects "windows viruses" and removes ...
22
votes
7answers
11k views

Linux keylogger without root or sudo! Is it real?

Somebody on Youtube claims to have a keylogger on Ubuntu that was neither executed nor installed as root. The link below shows a demo of it working. http://www.youtube.com/watch?v=Y1fZAZTwyPQ ...
4
votes
18answers
885 views

Is free security software as good as paid security software? [closed]

I mostly use free security solutions to protect my home PC, but I wonder if I would get better protection from a paid solution. I prefer the free software, since I can have multiple applications ...
19
votes
3answers
3k views

Is it possible to store arbitrary data in an image file?

Is it possible to store arbitrary data such as documents or a program in the form of an image file, such as a PNG image? My concern is that someone could encode data for use by malware into an image ...
1
vote
4answers
11k views

How do I clean up virus induced hidden files and disabled everything?

I'm working on a Windows XP computer that had the unfortunate experience of being infected by mal-ware that pretty much disabled everything. I was able to clean the computer using a combination of ...
14
votes
1answer
634 views

Why shouldn't we open an image in an email?

Most email clients do not display an image by default in the content of an email. But I don't understand this yet. How can displaying image job attack the computer?
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vote
3answers
383 views

Virus…? Tons of people talking. Not sure where else to ask

I really wasn't sure where to ask this, here, gaming, stack overflow, it can fit into any of them but I'll post it here. Sorry if I'm posting in the wrong area. I was playing Half-Life just now and ...
9
votes
4answers
715 views

Is it possible to safely contain a virus - not letting it spread?

I need to run a program, but I don't trust the author. I think it is infected with spyware or viruses, malicious files. I scanned it, did n't find anything, but still not feeling good about it. So I ...
6
votes
3answers
1k views

Can a computer be infected by malware through web browser?

Can a computer be infected when it accesses a malicious web page? Why is not a web browser 100% safe? What web resources, such as Java Script, Flash or a HTTP connection, can infect a computer?
3
votes
1answer
270 views

Is it possible to find the origin of a virus?

Is there any method with which you can determine the origin for a given piece of malware in Windows? One of my PCs was recently infected with the PWS:Win32/Zbot.gen!AP password stealing trojan. Is ...
3
votes
5answers
3k views

I can't open/ping any antivirus sites

I have a problem with a virus in windows 7, I don't know what kind of virus is infected my OS, I installed kasersky antivirus, and clear all detected viruses. After that I can't open any antivirus ...
3
votes
6answers
884 views

How did my computer get compromised?

How is it possible that my up to date install of Windows 7 with UAC enabled and Microsoft Security Essentials running became compromised, seemingly in a website drive-by? I've run ostensibly the same ...
3
votes
7answers
4k views

What to do about counterfeit Windows warning

I have a Dell computer that has just started waring me that Windows XP may be counterfeit, the operating system was pre-installed on the PC by Dell. Can I just ignore/disable the warning, or should I ...
1
vote
1answer
356 views

What is 1UnHooker.sys?

I'm still searching for a solution to my problem as I stated in my previous question (UAC being turned off every time Windows 7 starts (once a day)). Today, a program called SpyHunter found an unknown ...
0
votes
1answer
301 views

Google Chrome page is infected by the Ukash virus

I have a Samsung Chromebook. On the Google Chrome page I can't get rid of a site called Ukash (some site masquerading as Europol or something). How can I get rid of it?
0
votes
1answer
66 views

Virus disguising as file

Can files be infected with malware and them running as soon as the disk their on is connected/when their opened(Im talking for files like mp4/mov/avi, pngs(images generally) and compressed zip,tar.gz ...
99
votes
15answers
8k views

How can I fix a computer that is infested with malware and is extremely unresponsive? [duplicate]

Possible Duplicate: How do I get rid of malicious spyware, malware, viruses or rootkits from my PC? I'm troubleshooting a Windows 7 PC for a friend. A couple of days ago it started running ...
19
votes
4answers
2k views

What are ways to prevent files with the Right-to-Left Override Unicode character in their name (a malware spoofing method) from being written or read?

What are ways to avoid or prevent files with the RLO (Right-to-Left Override) Unicode character in their name (a malware method to spoof filenames) from being written or read in a Windows PC? More ...
6
votes
3answers
1k views

Worms vs Virus what's the difference? [closed]

I don't understand very well the difference between viruses ans worms, it seems that worms don't need any host to duplicate himself. But somebody can explain it? It means that a worm IS a soft? and ...
5
votes
3answers
2k views

Is there still need for codecs in Windows 7?

Aren't modern OS already packaged with the basic and most used codecs? Is there any reason to install a codec pack on a Windows 7? What are those reasons? Where can someone look for safe codec packs? ...
2
votes
2answers
190 views

Log application changes made to the system

Windows 7, 64bit. I have an application which I don't trust but still need to run. I would like to run the installer of this application and later on the installed executable under some kind of ...
5
votes
6answers
61k views

MacKeeper has hijacked my Safari Browser

MacKeeper (http:// mackeeperapp.zeobit.com) has hijacked my Safari browser. I have had to open Firefox, in order to get to the internet. I would rather use Safari, since that is where my bookmarks ...
3
votes
1answer
14k views

How can I safely close this window and forever avoid seeing similar pop-ups from Mackeeper Zeobit's malware and spyware?

The attached image shows a window that just popped up and the only button available is the OK button. I could Force quit Safari, but I've got several sites open right now and don't want to try and ...
3
votes
3answers
19k views

Is there a way to find rootkits on 64-bit Windows 7

I was at work and got a help desk call about a rather severe malware infection and it got me thinking about my own computer. I am running Windows 7 64-bit RC1 on my everyday laptop. I run ESET ...
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vote
2answers
661 views

How does Antimalware Doctor infect computers?

I didn't do anything stupid like run random .exe or visit questionable websites, but as I was just Googling I get infected by Antimalware Doctor. At that point I just shutdown my computer and ...
0
votes
5answers
2k views

Impossible new virus [duplicate]

Possible Duplicate: What to do if my computer is infected by a virus or a malware? I have been hit by an absolutely impossible new virus. Only in the past 3 months or so the internet has ...
6
votes
2answers
370 views

Mysterious notepad.exe spawned every morning

Since a couple of weeks, when I sit down in the morning and unlock my PC at work, I see a notepad window, complaining that it "Cannot find c:\oracle.message.txt". This is quite unnerving - I thought I ...
4
votes
5answers
3k 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 ...
4
votes
7answers
3k views

How to clean a computer with multiple accounts infected with spyware, viruses? [duplicate]

Possible Duplicate: What to do if my computer is infected by a virus or a malware? What's the best way to clean a computer with multiple accounts infected with spyware, viruses and malware? ...
3
votes
1answer
17k views

The site's security certificate is signed using a weak signature algorithm! can't access any HTTPS's site

I'm getting this error on any HTTPS page and can't even login here in SuperUser.com if I use chrome. You attempted to reach www.facebook.com, but the server presented a certificate signed using ...
3
votes
8answers
255 views

Virus cleanup brainstorming

I'm in the process of cleaning up a virus from a friend's computer and so far I've managed to have the windows runtime clean. However, after a reboot the malware reappears. Another symptom is that the ...
2
votes
3answers
1k views

How do I get rid of adware from Search Conduit/White Smoke?

This adware came bundled with some freeware I downloaded. It hijacked my home page and search engine. I have fixed both of those things, but still every time I open Chrome, it opens ...
2
votes
2answers
399 views

Tracing what program is making a network connnection? (CentOS)

I was wondering if it is possible to find out which process is trying to make a specific network connection. On a server I support which hosts websites for about 200 users, the iptables firewall keeps ...
1
vote
1answer
134 views

Is it possible for a digitally signed application to be infected by a virus?

I downloaded "java development kit" from my college computer, the computer that I used to download the software was full of virus and malware. I scanned the software with antivirus program the ...
1
vote
2answers
271 views

How to fully uninstall Adobe Flash?

Unfortunately a game bundled Adobe Flash in its installer, thus it clawed its way onto my PC. I haven't been using Windows for a while (Used it for a long time but took a hiatus with another OS) so I ...
0
votes
0answers
529 views

what is en.v9.com and how to remove it?

I was reinstalling Windows (namely installing Windows 8 instead of Windows 7). But then Chrome suddenly closed. When I started it again, it had that annoying en.v9.com home page. I don't know how to ...
0
votes
4answers
4k views

High memory usage on Windows 7 unable to open browser

I switched on my laptop at 9 o’clock this morning and it is now 14:00 hours, where in after a series of reboots, hard or soft, I am able to open my browser. I opened a notepad and noted down ...
0
votes
1answer
737 views

Sudden popup in all browsers on some sites - How to remove?

Recently got infected with something where, in all browsers (IE9, FF, Cx), a 3.5" square popup appears on many sites in the lower left (or right) corners. It wants me to download something or watch ...