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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213
votes
16answers
118k views

How do I get rid of 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 ...
96
votes
24answers
10k 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 ...
16
votes
4answers
13k 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 completelly overloaded with viruses and another malicious code, ...
72
votes
15answers
32k 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.
19
votes
8answers
9k views

Virtual Machine and Virus

I have a requirement for which I have to get online without protection (firewall, anti-virus). At the same time, I don't want to risk getting infected with viruses. If I install a virtual machine ...
25
votes
5answers
22k views

Can a virus from a virtualbox vm affect the host computer?

Can a virus from a VirtualBox VM affect the host computer?
13
votes
8answers
5k views

Can a virus melt the CPU?

I was just wondering if a virus could melt a CPU by altering te voltage in the bios. :) (and no, I'm not planning on making that kind of a virus...)
6
votes
7answers
4k 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 ...
4
votes
9answers
2k views

Virus protection for flash drives

At school, there is a large network with lots of non-technical minded people and lots of viruses. How can I protect my flash drive from these worms and viruses so I don't bring them home and infect my ...
16
votes
5answers
4k views

Windows 7 unreasonable ram usage

I have a fresh install of windows 7, and my ram in normal startup goes up to 2.5 GB. I looked at task manager, and there's at least 1.5 GB missing from there and in resource monitor as well. No ...
5
votes
3answers
6k views

Can a Virus Enter via Ubuntu and affect Windows in dual boot?

I have a Windows XP Pro dual booting with Ubuntu Jaunty Jackelope on a single hard drive. On Windows XP I have a Eset NOD 32 while on Ubuntu I have no antivirus installed. While working on the ...
3
votes
4answers
637 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 ...
5
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 ...
4
votes
4answers
865 views

Why did my friends get spams from my email?

Recently I got an email with subject like "Delivery Status Notification (Failure)". It had been initially sent to my friend's old email account. The content inside that failed email was obviously one ...
0
votes
2answers
3k views

How to make USB drive or pen drive write protected? [duplicate]

Possible Duplicate: how to write protect a USB key ? I have a pen drive which I used to carry some files from my laptop to other public computers, these public computers are virus infected. ...
0
votes
3answers
120 views

Vundo/VirtuMonde detection application?

I think a netbook I'm tasked with getting back into shape might have the Vundo/Virtumonde virus. I've run MS Security Essentials, Malwarebytes and Spybot but it's not spotting it. I know this is a ...
2
votes
8answers
13k views

After virus, Chrome & Internet Explorer won't connect to the internet, but Firefox works fine

I cannot connect to the internet with Chrome or Internet Explorer. Firefox works fine. It seems it happens when I was infected by a "Trojan Horse Generic 17.BWIK", "Trojan Horse SHeur.UHL" and ...
1
vote
3answers
9k 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 ...
13
votes
1answer
590 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?
6
votes
6answers
3k views

Clean up infected computer from viruses [duplicate]

Possible Duplicate: What to do if my computer is infected by a virus or a malware? I have a computer which had AVG Free installed from day one. After several months of operation, it starts ...
1
vote
3answers
360 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 ...
0
votes
1answer
5k views

How to remove shortcut virus from usb-flash-drive

My usb-falsh-drive have shortcuts of every folder and even if I deleted They are remaining same. Have any one experienced it? How to remove or prevent it? Thanks in advance, Vicky
5
votes
1answer
5k views

Is It Possible to Spread Virus Through Online Embedded Video?

I am curious about whether it's possible to embed virus in online video ( in the swf and/or flash format)? Or is it possible to put a virus inside the html5 <video/> tag?
3
votes
5answers
670 views

Is it possible for virus in windows to infect ubuntu?

I have a triple boot, windows 7 , 8 and ubuntu. Is it possible that any spyware or virus in windows will also harm ubuntu or spy during ubuntu session ?
3
votes
5answers
2k 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
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 ...
2
votes
3answers
403 views

IE homepage set to some site I don't know about

Looks like I have some kind of virus on my computer. The default home page for Internet Explorer keeps getting set to some site called socio.fusionace.com Gmail has also been giving me problems in ...
1
vote
3answers
513 views

How to format a memory card which is infected by a virus and antivirus is not able to delete it

I've bought a memory card which is recently infected by a virus. I tried to scan it with latest Bitdefender 2014 and Norton 2014 they both failed to delete the virus. Then I deleted the partition and ...
1
vote
4answers
20k views

Prevent Sending Spam with my Yahoo Account?

Today morning I found my Yahoo Mail account sent several emails with Subject re: and this body : this is crazy you should give it a look http://www.wanews15.net/biz/?news=9080205 to all my contact ...
1
vote
6answers
1k views

Conficker keeps coming back

I hadn't run into anyone who actually got this virus until recently when dealing with a new client that didn't believe in patching their systems and consquently have been hit with this pest. I was ...
1
vote
1answer
342 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 ...
1
vote
2answers
261 views

Folders disappear every time Windows XP starts up

Symptoms: Whenever my Windows XP machine starts up, subfolders disappear from the first top-level folder, listed alphabetically (eg. from "C:\AA Backups"). The first time it happened I suspected user ...
0
votes
2answers
326 views

Do I have a virus? What is this green icon?

Just got a new computer at work and was just starting to install all of my required software on it. I downloaded something and may have installed it by mistake (it could have been TortoiseSVN). ...
0
votes
2answers
991 views

W32.Sality Virus Cleaning/Disinfecting tool, Please HELP [duplicate]

Possible Duplicate: What to do if my computer is infected by a virus or a malware? Is there any anti virus or tool which cleans or disinfect the w32.Sality virus instead of ...
0
votes
4answers
605 views

Ubuntu antivirus server possible?

is it possible to kit out a lot of Ubuntu machines with antivirus protection, then have them point to a central update/administration server?
-3
votes
2answers
2k views

Skype “haha foto” virus

There is a new Skype worm that is spreading very fast and the detection rates are very low: analisys It creates groups from all your contacts and sends "haha foto" followed by a link. At the time of ...
93
votes
5answers
3k views

Why the heck does NTFS allow invisible executables?

You can hide any file inside of another file just by typing: type sol.exe > container.txt:sol.exe and to run the file hidden file just use: start c:\hide\container.txt:sol.exe But the crazy ...
18
votes
4answers
1k 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 ...
8
votes
2answers
37k views

usb flash drive contents replaced with a single shortcut

I was confused when I opened my flash drive all I saw was a shortcut with its target as C:\Windows\system32\rundll32.exe ~$WO.FAT32,_ldr@16 desktop.ini RET TLS " " You may refer to the images I ...
12
votes
3answers
3k views

How to be certain you don't have a virus when anti-virus scanners find nothing malicious? (Windows 7)

I recently spent many hours troubleshooting a laptop that could not connect to the internet. The laptop exhibited no other unnatural behavior, and so my first thoughts were to try connecting to other ...
5
votes
12answers
3k views

Lightweight virus scan for win XP [closed]

I have an older machine (athlon 1500+, 1.5Gb RAM) running XP on which I not currently running an on access virus scanner. I do scheduled scans with clamwin and malware bytes. I would like to find a ...
15
votes
6answers
4k views

How can visiting a webpage infect your computer?

My mother's computer recently became infected with some sort of rootkit. It began when she received an email from a close friend asking her to check out some sort of webpage. I never saw it, but my ...
13
votes
5answers
18k views

Can system restore remove virus from the computer?

Can a system restore to a past time remove the virus from the computer?
6
votes
5answers
2k views

can a virus execute by itself?

is there any type of viruses can execute by itself after download then on the HDD without clicking on it?? if there is ..... can you refer me to any sites about them?
5
votes
4answers
2k views

Can viruses be spread via VGA cables?

Are VGA cables too "dumb" to spread malware from one device to another device? Background: I'm giving a talk tomorrow, and the laptop I'm presenting on will be connected via VGA cable to another ...
3
votes
1answer
12k 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 ...
2
votes
4answers
4k views

How to check for false positive?

Looks like I've been infected by a virus, namely NSIS:Downloader-BX [Drp] in file named DpiSca.exe but... I wasn't visiting any usual suspect sites (warez, pr0n etc) and nobody else was using my ...
1
vote
1answer
1k views

Virus duplicated user account on XP?

Could a virus create duplicate accounts in Windows XP? Said duplicate accounts have same rights (admin...), same name, but the folder name under C:\Documents and Settings\ is ...
13
votes
3answers
3k views

How to know if your computer is hit by a dnschanger virus?

The Federal Bureau of Investigation (FBI) is on the final stage of its Operation Ghost Click, which strikes against the menace of the DNSChanger virus and trojan. Infected PCs running the ...
8
votes
7answers
7k views

Can a virus infect an ISO file?

I feel that it's going to be very difficult for a virus to infect an ISO file. What's your experience? Have you seen it happening ever? Is it not nearly unlikely? I ask because I've just found that ...