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Computer Viruses
Computer viruses are harmful pieces of software which can reproduce themselves and automatically spread to other computers and networks. Questions about computer virus techniques and specific computer viruses belong here.
5,673 Questions
When did computer hacking start?
right after the internet was releast to the public for the first time
What is the effect of a computer virus in the computer files?
Virus types vary. Most have at least one of the following goals:
1. randomly delete personal files
2. send your personal files to the virus programmer
3. destroy yous operating system
4. infiltrate (and maybe destroy) your boot sector and/ or BOIS
Does YouTube downloader have viruses?
YES!!!! IT DOES!! JUST RESENTLY MY COMPUTER CRASHED COMPLETELY!! i lost ALL my memory then after that week my moms friedns computer crashed and her son goes on you tube all day.
Can you erase a virus from a program and still use it?
There is away. there are some free online scanners out there to scan your computer but cant delete them. they should tell you where the virus is hidden. go to search and look in everything and make sure you set the advance seting to seearch hidden files and folders. once you find the infected file delete it from your computer. make sure you empty your recycle bin. BUT! if a virus is hidden in a pathway you need antivirus or to reformat your computer. deleting viruses manualt may harm your computer
What are the ways of acquiring a computer?
By purchasing one
By being given one as a present
By hiring one
Or by sharing one in a public area.
Mwah is something we call onomatopoeia, or words that sound like the noise it's describing. "Bang" is an example of this -- it describes what you hear when you hear a gun shot, but also sounds like the noise it describes. "Buzz" is another example - when you say it, it sounds like the noise it's describing.
Mwah means a kiss. Many girls will say this word and make a "kissy face". It usually is a sign of affection or love.
Adobe AIR is not a spywrae. Adobe AIR is a cross-operating system runtime that enables you to use your existing HTML/Ajax, Flex, or Flash web development skills and tools to build and deploy rich Internet applications to the desktop.
Can mobile phones be infected with a virus?
In theory yes, but it would be difficult to design and distribute a virus for a mobile given that there are so many different kinds of phone systems. The chance of mobile infection is slim due to the sheer lack of viruses that have been deployed.
Does deleting programs give you back ram?
Nope - uninstalling programs recovers space on your hard-drive. The only way to 'lose' RAM is if one of your memory chips fails - in which case, windows would report the error, as it would be expecting more RAM to be available.
Why does my computer freeze when going to certain websites?
It is probably because those websites are too big for your Internet connection to open, so the Internet would take a long time to load them. Thus if you try and click it a lot of times or it takes too long to load, then this can cause the website to not respond. Then your computer freezes as the website does. Perhaps because your computer has too many programs open as well. Try closing most of the other programs and websites, then try reloading the site.
If the above advice fails, then your browser could be corrupt, and/or you could have malware installed. The first thing you can try is go to Add/Remove programs and remove any unfamiliar software that didn't come with the computer, particularly if it is recent. Uninstall any toolbars, unfamiliar games, plugins, shopping helpers, web helpers, etc. Then check your browser settings for toolbars, plugins, or other add-ons and remove any that are unfamiliar or suspicious. After that, run anti-spyware and anti-malware programs. Then if that doesn't fix things, then try reinstalling the browser. If the problem is in IE, then get the IE installer from Microsoft or try one of the IE repair programs.
If you still have problems, then you may need to remove and reinstall web support programs such as JAVA, Shockwave, Adobe Flash, Adobe Reader, etc. If the sites involved are multimedia sites, then you might need to install or reinstall a codec pack. Good codec packs will scan for multimedia errors, possibly re-register any corrupt or missing multimedia registry keys, and check for incompatible multimedia files, all as a part of installing.
Are there virus free operating system?
Yes. A very large variety of operating systems are available free of cost, and many with source code available.
Operating systems available free of charge, for any purpose, with source available:- Linux - Unix-like OS
- FreeBSD - Unix-like OS
- OpenBSD - Unix-like OS
- NetBSD - Unix-like OS
- FreeDOS - MS-DOS clone
- ReactOS - Windows 2000 / XP clone (in alpha, not suitable for daily use)
- Haiku - BeOS clone (in alpha, not suitable for daily use)
- AROS - AmigaOS clone (lacks a web browser and good device support)
- KolibriOS - Floppy-size OS with a crude GUI
- Syllable - general desktop OS; Amiga-like.
- OpenSolaris - open-source codebase of Solaris (see below)
- Solaris 10 - Unix implementation from Sun Microsystems. Useful as workstation / server; lacks comprehensive hardware support.
- BeOS Personal Edition - multimedia-oriented desktop; doesn't work on most newer computers.
- DR-DOS - MS-DOS clone
- MenuetOS - Floppy-sized OS with GUI.
- QNX - realtime / embedded OS; highly responsive environment, though mostly lacking in applications (you were supposed to write your own!)
Some are
1. DOS
2. RxDOS
3. Ubuntu
4. ReactOS
etc
You can find and download more free OS from the link that I have posted in the related links with this question.
What file types can contain viruses?
.Exe
.com
.386
.ade
.adp
.adt
.app
.adt
.app
.asp
.bas
.bat
.bin
.btm
.cbt
.chm
.cla
.cmd
.cpl
.crt
.csc
.css
.dll
.doc
.dot
.drv
.eml
.fon
.hlp
.hta
.inf
.ini
.ins
.isp
.js
.jse
.lib
.lnk
.m
.mdb
.mde
.mht
.mp3
.mso
.msc
.msi
.msp
.mst
.obj
.ocx
.pcd
.ov?
.pgm
.pif
.ppt
.prc
.reg
.rtf
.scr
.sct
.shb
.shs
.smm
.asm
.c
.cpp
.pas
.bas
.for
.sys
.vb
.vbe
.vbs
.vxd
.wsc
.wsf
.wsh
.xl?
How do you get rid of a virus on a windows 7 laptop?
You need to run these 4 essential steps to remove all the spyware on your computer.
1. Run Malwarebytes Anti-Malware
2. Run the anti spyware removal programs spybot
3 Run Superantispyware
4. Run a complete scan with free curing utility Dr.Web CureIt!
Use Mozilla firefox or the google chrome browser for browsing unsafe websites
Install ThreatFire
ThreatFire, features innovative real-time behavioral protection technology that provides powerful standalone
protection or the perfect complement to traditional signature-based antivirus programs offers unsurpassed protection
against both known and unknown zero-day viruses, worms, trojans, rootkits, buffer overflows, spyware, adware and
other malware.
Install a good antivirus in your computer.
Keep your antivirus updated. If automatic updates are available, configure your antivirus to use them.
Keep your permanent antivirus protection enabled at all times.
How many computers are hacked every year?
i got hacked earlier, so that's 1 i know of.
My answer - 1 (2011)
Which is the best free internet security?
VIPRE هي شركة رائدة في توفير حلول أمان الإنترنت التي تحمي الشركات وموفري الحلول والمستخدمين المنزليين من التهديدات السيبرانية المكلفة والضارة. يتضمن VIPRE أمانًا شاملاً لنقطة النهاية والبريد الإلكتروني وتحليلًا للبرامج الضارة في الوقت الفعلي.
2u.pw/PIl4Q
How can I remove a virus if the computer won't open Windows?
This is a complicated question, which could have manyvariables for answers. One way is to use another computer to download some tools to help clean your PC. Make sure you download the latest update files for the tools, too.
Burn those tools to a CD, then take the CD to your infected computer. Disconnect ANY connections to the Internet, reboot into Safe Mode and then use the CD to start cleaning your PC.
Some of the tools that will help are:
* Spybot Search & Destroy - Update, Immunize and then Check for Problems * Spyware Blaster - Update and Enable All Protection * HiJack This - DO NOT USE unless you know what you're doing. DON'T GUESS! * Cache Cleaner - Run this between every reboot while cleaning * AVG Anti-Spyware - Update and run Full System Scan * AVG Anti-Rootkit - Update and run Scan * AVG Anti-virus FREE - Update "" BE CAREFUL OF FAKE SPYWARE KILLERS ""
There are A LOT of programs out there that report to kill malware, but are hijackers that are really malware themselves.
If the programs (listed above) clear everything up, attach to the Internet, update ALL of them again and RERUNyour scans. It's important to run the scans multiple times to make sure everything is gone. One piece of malware left on your machine could open the door to several more, leading you back to the same situation you're in now.
If the programs don't clear everything up... you might also consider contacting some of the support forums (via anotherPC) for assistance.
NOTE: If you're downloading music or movies from the Net using Limewire (or something like it), the root of the malware problem will remain. P2P networks are NOT SAFE.
What type of virus was the famous Michealangelo virus?
The Michelangelo virus is a computer virus first discovered in April 1991 in New Zealand.[1] The virus was designed to infect DOS systems (but did not engage the operating system or make any OS calls; Michelangelo, like all boot sector viruses, basically operated at the BIOS level) and remained dormant until March 6, the birthday of Renaissance artist Michelangelo. There is no reference to the artist in the virus, and it is doubtful that the virus writer intended Michelangelo to be referenced to the virus. Michelangelo is a variant of the already endemic Stoned virus.
On March 6, if the PC is an AT or a PS/2, the virus overwrites the first one hundred sectors of the hard disk with nulls. The virus assumes a geometry of 256 cylinders, 4 heads, 17 sectors per track. Although all the user's data would still be on the hard disk, it would be irretrievable for the average user.
On hard disks, the virus moves the original master boot record to cylinder 0, head 0, sector 7.
On floppy disks, if the disk is 360 KB, the virus moves the original boot sector to cylinder 0, head 1, sector 3.
On other disks, the virus moves the original boot sector to cylinder 0, head 1, sector 14.
- This is the last directory of the 1.2 MB disks.
- This is the second-to-last directory of the 1.44 MB disks.
- The directory does not exist on 720 KB disks.
Although designed to infect DOS systems, the virus can easily disrupt other operating systems installed on the system since, like many viruses, the Michelangelo infects the master boot record of ahard drive. Once a system became infected, any floppy disk inserted into the system (and written to; in 1992 a PC system could not detect that a floppy had been inserted, so the virus could not infect the floppy until some access to the disk is made) becomes immediately infected as well. And because the virus spends most of its time dormant, activating only on March 6, it is conceivable that an infected computer could go for years without detection - as long as it wasn't booted on that date after being infected.
The virus first came to widespread international attention in January 1992, when it was revealed that a few computer and software manufacturers had accidentally shipped products, for example Intel'sLANSpool print server, infected with the virus. Although the infected machines numbered only in the hundreds, the resulting publicity spiraled into "expert" claims of thousands or even millions of computers infected by Michelangelo. However, on March 6, 1992, only 10,000 to 20,000 cases of data loss were reported. The news media lost interest, and the virus was quickly forgotten. Despite the scenario given above, in which an infected computer could evade detection for years, by 1997 no cases were being reported in the wild.
How to get rid of a Trojan horse on your computer?
Trojan Horses can easily be removed or disabled by scanning your system via online at www.housecall.antivirus.com (A Trend Micro website).
Make sure that Trojan horse may be an application to hack you or steal your personal information while you are working on your system. Espacially when you are over LAN.
Some of the examples are netbus pro , subseven , .....
Answer
You can get rid of the Trojan horse , by following these steps .
1 Download and intall the Malwarebytes on your computer .
2 Update your Malwarebytes .
3 Scan your computer for all the malwares in your computer .
4 Remove all the malwares , found while scanning with the malwarebytes .
5 Restart your computer .
How do clean a virus from a computer?
Run a virus scan using AVG free (can download at web address below) and then at the end of the virus scan (can take up to 4 hours depending on hard drive size and CPU speed) and then at the end you should get an option to remove all viruses found or it should (most of the time) do it automaticly. http://www.download.com/AVG-Anti-Virus-Free-Edition/3000-2239_4-10320142.html?part=dl-AVGAntiVir&subj=dl&tag=button
There are different reasons on why we get viruses (or virii as others said). A common one reason is a computer infection. When we use computers (especially public computers), we usually plug in our flash drives. If the computer has virus in it, then there is a large possibilirty that your drive may be infected. If we plug it in on our own device, then it will infect ours too. Another factor is when we download from the internet. Not all files in the internet is safe. When we download a file, we should run a scan first before executing it.
A bug is an error of the particular option or steps of a program which cause to get the accurate result or obstruct user to full fill his requirement. When a bus appears on a software or website or app it will show a unexpected result or can't show any result.
What is the difference between virus and software?
Viruses are malicious programs that are downloaded onto your computer without your knowledge, often along side something you've downloaded off the internet or through email. Viruses spread from file to file and can spread to others when you email infected files. Viruses cause harm to your computer by slowing it down or destroying files on the computer. Software is a program that performs a specific task such as editing photos or playing movies. Unlike viruses, most software is only active when the user chooses to use it. Technically, viruses can be considered a type of software, but in general the term "software" is never used to describe a virus.
Computer viruses are malware programs that can cause damage to your computer. They travel or spread by various means including as an email attachment. They can be disguised as images, videos, audio files, or cards. They can be hidden in other files and spread to your computer when you download something from the Internet.
