Viruses: How They Infect Computers

Having viruses in your computer could become a total waste of time, money and effort. Instead of accomplishing a simple task by using a computer, you either focus your attention on waiting for the programs to load, or search for ways to retrieve and reinvent your files. In order to prevent these harmful software from ruining your mood for the entire day, it is essential to learn the various ways that viruses infect a computer, and how an antivirus program can significantly relieve you from such troubles.

The most common cause of computer viruses is infected e-mail attachments. Some executable programs attach themselves to the files sent to you, which later can activate to cause damage to your computer or files. Every time you open files containing viruses, they multiply and increase in your device. This leads to slower processes and possibly, total computer termination. Several antiviruses work by scanning e-mail attachments as soon as users download a file. Upon scanning, they instantly provide users the option to either proceed with opening the file or permanently delete the suspected file. Doing this regularly will increase the chances of preventing computer viruses.

Another way a virus corrupts a computer is when the user accesses unsafe websites. Browsing the Internet may lead to your computer receiving several malicious items that could harm it. Even websites that explicitly vouch for their security and absence of viruses, cannot guarantee a 100% virus-free environment at all times. The prevailing changes in our current technology have led to the increase of unsafe software that enter our system by simply viewing them. Some antivirus systems forewarn users when they seem to detect malicious items in web pages. In addition to this, using several antivirus programs to scan your files will be able to detect various kinds of viruses present in cookies, history and web files.

Even the most unexpected sources have been utilized as ways to infect a computer with a virus. Counterfeit antivirus systems have been available for download online, and have since caused widespread dangers to computer users. These fake software have long been prevalent due to most buyers' natural propensity to prefer to get things for free. This has then led to increasing cases of virus-related computer termination. In order to determine which antivirus is legitimate, it is substantial for users to be able to distinguish which antivirus system is genuine or fake. It is also recommended to either download antivirus software online based on positive reviews or if not offered for free, purchase it from the company itself.

The most frequent ways viruses infect the computer are through accessing unsafe e-mail attachments, browsing harmful sites and downloading fake antivirus systems. These bring potentially destructive effects to your computer; nevertheless, the best way to prevent these viruses is by having fully functioning antivirus systems in your computer.

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A Beginner's Guide to Anti-Virus Programs and Removing Computer Viruses

Due to the immense importance people put on computer and technology, it is crucial that one knows how to protect their computers against computer viruses. These viruses can be downloaded from Internet, which makes it easier for a user to introduce a virus into their computer without him/her knowing about it. Anti-virus software programs can help block viruses from entering a computer, but sometimes a virus may slip past these defenses. There are two things a person can do to remove a virus from their computer without taking it to the repair shop.

1. Back up their data. Some users seem to forget to do this, and once a virus infects the computer and deletes all the data on the computer's hard disk, it would set them back a long way. While most computers come with an option to store a back up of a user's files onto an external hard drive, this also increases the chance that any available viruses would also be copied to the external hard drive. Users can use a hard drive dock or upload their files on online file storage systems instead.

2. Run virus scans. Users should first boot their computers into safe mode before running the virus scan. They can also download anti-virus programs on the Internet, but users should make sure that they chose tried and tested programs. If users can still access the Internet on the computers, they can utilize online scanners that would help them pinpoint and remove viruses. These scanners are also able to improve the computer's performance and clean the hard disk.

Before one performs these steps, they should first make sure that their computer and technology is indeed infected with a virus. Some "symptoms" of an infected computer includes inaccessible disk drives or disks, distorted menus, and strange error messages. Computers that crash often, freeze, or run slowly may also be infected with a virus. However, these may also mean that the computer has some problems with the software. Anti-virus programs and scanners are the only sure way to determine if a virus has been introduced into the computer.

There are several kinds of anti-virus programs that people can install into their computers to help them remove any harmful add-ons. Spyware is directly aimed at removing any spyware from a computer, and even prevents any spyware from being installed in the future. Browser security assures users that they can surf the Internet safely, and the firewall serves as the computer's initial defense against unauthorized access. Parental controls, spam filters, and phishing protection are other types of anti-virus programs.

Aside from providing people with easier ways to communicate (among other things), computer and technology also gives people the chance to protect themselves from viruses and those with malicious intent. These programs lessen the risk of viruses, thus allowing people to use their computers without any delays.

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Warning Signs, Fixes, and Ways of Deterring Viruses, Malware, Spyware and Others

There are so many forms of malware that exist today that any serious computer user must be knowledgeable about them. And although there are means of getting rid of them from your PC such as free antivirus programs and paid anti-malware software, it is always good to know how to recognize different kinds of malware and how to deal with them.

A virus is any self-multiplying software or bit of source code that can clone itself and be integrated into a host computer system, or attempts to replicate itself into the program using harmless terms such as "repair tool." A computer virus is only able to gain access to other computers by transference or delivery by an unsuspecting computer user, or be ported through a handy storage device from an infected PC to a clean one. If it gets the chance to latch on into a computer's network-linked drive, then all other users who get a copy of the infected file or document sent to them will be tainted by it as well. Capable free antivirus solutions should be able to prevent such kinds of intrusions from happening.

A computer worm can be defined as a self-multiplying bit of source code that employs a network of linked computers to pass out duplicates to other existing network links. It differs from a virus in that it enables itself to multiply without getting any active support from the computer user and that it does not need to piggyback unto a host file or program. A worm can be made to import a "payload" or source code that can execute a predetermined task. This "payload" will have the worm do things like send out spurious documents via the compromised email system; the worm incorporates attached copies of its own into these emails and spreads when an unsuspecting computer user opens the message, thus causing the worm to be downloaded into his or her PC.

Malware is a term used to define any type of pernicious software program or source code that has been originally designed to do any of these types of actions; namely, secretly gain access to a computer without the user's knowledge, funnel away any pertinent personal data that hackers can use and sell including Social Security numbers, system access numbers, credit card numbers and birth dates, make remote entry or rear access points to let hackers have free rein into the computer system, and total deletion of important system information, denigration of the OS files, or both. Again, an effective antivirus program can easily deal with such issues. The term "malware" is mostly employed to describe worms, spyware, Trojan horses, viruses, and some types of adware.

Spyware refers to rogue programs that "harvest" crucial data ranging from the websites that the computer user prefers and goes most often, email accounts and passwords, user and account names up to more personal information such as credit card numbers. Spyware gain entry to a computer without the user's consent and can covertly send out the "harvested" information using the Internet to interested parties such as hackers.

Adware, short for "advertising-supported software," are types of malicious programs that show, initiate, or put in ads into either the desktop of the PC or its web browser application as part of a downloaded program. You can have them without charge - if you would like to see advertising windows that pop up haphazardly and repeatedly on your PC offering you various products that you have no use whatsoever. And like spyware, adware has the capability to siphon information on your Internet usage and browsing preferences to arrange for the right type of advertisements to be sent to you. Although this makes them similar to spyware, adware are meant purposely to send unwanted advertisements to your computer.

A Trojan horse, finally, is software that when ported and run on an uninfected PC will look like it is executing some needed task but is actually opening doors into which other users can gain entry into the user's PC system. Hackers usually employ Trojan horses to remotely subvert a computer and then do whatever he likes with it. These may include information purloining, keystroke recording, uploading or downloading programs or files, watching the host computer's screen, and causing the host computer system to fail.

To save yourself the trouble of dealing with these kinds of malware, do follow these steps. Refrain from unreliable or undocumented programs that you procured from the Internet and use only those that are trustworthy, be wary when you employ file sharing applications like Limewire or torrent websites to download programs or files, never open any attached file from an email from someone you do not know, use an effective paid or free antivirus or anti-spyware product to check on your computer once in a week and have it updated currently.

Now that you have learned of the types of malware and the ways which you can deal with them, you are more prepared to handle their intrusions in the future. A good free antivirus or anti-spyware program can do the work for you, but sometimes it does pay to be prudent by finding ways to bar them altogether.

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Use the Best Spyware Protection to Remove Spyware and Viruses

There is no doubt that we all are dependent on computers and the internet like never before. And that also means that our computers, that include so much of our sensitive data, are exposed to all sorts of malware attacks.

Using the best virus & spyware protection programs is becoming more and more important. These not only get rid of the existing malware on your computer, they also continue to monitor your computer on a real-time basis always looking to block the next harmful thing from entering inside your computer.

The problem is that many don't want to pay to get these spyware removal software programs and are always looking for a free version that will do the job. The problem with that approach is that there are so many seemingly useful software programs that are actually spyware and get inside your computer without your knowledge.

One such spyware out there that takes advantage of the fact that the user is looking for a free solution is the spyware protection virus, which sneakily gets in your computer. Even though it projects itself as a useful tool, it is actually not what it claims to be. In fact it is a spyware that disguises itself as spyware removal software, which is supposed to be helpful. It takes advantage of the fact that people are constantly looking for solution on the internet so it projects itself as something useful, but once it is on your computer it starts playing havoc.

If your computer is infected the first thing that one does is go online and look for solutions and most of do look for free help rather than spend on getting the solution. Of all the search results, this is the one that comes up and once you have installed on your computer, it starts behaving like any other spyware.

In case your computer is infected with it, this is how to remove spyware protection from your computer. Here is how to go about it and make your computer clean of this malware. In most cases it is quite simple because this virus is more of a program and if you go to the "Add/Remove" program section of your control panel you should be able to see it there. So if you are one of those whose computer has been with the spyware protection virus then this is how to remove spyware Protection virus.

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Runtime Errors Caused by Viruses

A runtime error happens when there is a problem during or after the execution of a program in a computer. A common cause of this kind of error is problem with the system registry. More often than not, a virus or any malicious file can cause a runtime error. It can also cause your computer to develop odd quirks or exhibit problems that weren't there before. A free antivirus software that offers basic protection can usually detect this kind of malicious infection.

It is quite easy for computers to be attacked by viruses despite the steps we take for protection. Even the most hard core computer users are open to viruses. Once connected to the Internet or to a network, your computer is vulnerable to attacks. Checking an email, browsing, and file-sharing can put your computer in danger.

A virus can affect a computer as soon as it is inside it. The worst kind of attack for many of us is one that can steal personal information. One such virus is known as the SubSeven. Fortunately, this kind of infection is associated with a specific warning, runtime error code 216.

It is important to recognize the signs of threats and infections on our computers. We can do the necessary steps right away to prevent further risks and damages. The hypinit32.exe virus, for example, can give a Runtime Error 21 and a few other symptoms. Your computer may freeze, may be able to access the internet, update and download programs.

A decent free antivirus can deal with this kind of problem. But there are runtime errors which are serious enough to require more attention. The extent of infection may also need a little more exertion from you. You may need to locate the specific malicious file and the worst case scenario may require you to reinstall the operating system.

Fortunately, there is a wide variety of free antivirus software to choose from. Information on how to remove specific problems can also be found online.

Different security companies now offer free versions of the antivirus software they have. A free antivirus software may not have the extensive features that full version has, but it does provide basic protection. Companies like Trend Micro, AVG, Avira and Avast have decent free versions of their security software. It is only important to recognize the different signs that can tell you whether or not your machine is infected by a virus.

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How to Tell If Viruses Are Attacking Your Computer

When plagued by virus attacks, your PC has the tendency to malfunction and show negative responses. Every PC user needs to deal every day with this attack known as a virus. The computer virus, considered as a malicious program when it deliberately invades a computer, can cause damage among the programs including the computer operations. PC users are regularly advised to utilize free antivirus removal software to keep them constantly virus protected.

Hence, it is so important to understand the several virus signs and symptoms so that whenever one gets a virus attack, he can look for solutions and discard the PC virus before his online identity or system gets ruined.

While dealing with your network, you may discover a lot of the telltale signs to help you identify viruses thereby helping you install a free antivirus removal program. Some signs are outlined below:

• Starting Windows takes a lot of time despite the fact that there are no changes made or installed and no software or program removed.

• Automatically starting Windows is not possible because some system or application files are not present. Moreover, an error note is received every time the missing data files are searched for.

• The PC functions at a slower rate and it needs a longer time to begin any PC application.

• There are times when even if the PC begins booting, it stops functioning right before the task toolbar and the desktop display icon appear.

• The PC and/or Windows automatically and spontaneously restart.

• New programs are incorrectly installed.

• Antivirus program will show or send you alerts on virus detection.

• An antivirus program is aborted for no valid reason and, additionally, restarting the antivirus is impossible.

• Installing the antivirus program is not permitted or the previously installed antivirus program download cannot perform its roles.

• Despite having a substantial amount of RAM, your PC will display empty memory error signals.

• While you are utilizing Microsoft Office tools, your PC stops answering and the computer applications do not function properly.

• You can view the distorted task bars and menus and you can not commence the Windows Task Manager.

• You will be able to see longer file extensions on a recently viewed file attachment, such as:.vbs,.exe,.jpg, or.gif.

• You can hear strange noise or sudden playing of video and music from the audio speakers.

Then, if ever you have noticed any of the given signs, your PC is most likely infected with viruses. You have to combat these viruses to guarantee your secured and safe web reputation.

Furthermore, you will discover several available online businesses which can give you an impressive solution to keep your PC safe by getting for yourself the most notable antivirus program. Surf on a few popular search engines to look for the most useful free antivirus program solution for your PC.

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Computer Viruses: What Are They?

Computer Viruses are the Definition of trouble

All over the world, computers and other devices that are connected to the internet are at risk of becoming infected by a computer virus. But what is a computer virus, anyways? Like with humans, a virus can make your computer "sick", and can be spread from computer to computer. A computer virus is described as a program that infiltrates your computer's defenses, disrupting normal computer functions, and can even delete programs, files, and can even wipe your hard drive clean. Some viruses simply make things frustrating, and are intended as pranks. Others, though, have a more destructive purpose, and can make things very difficult, and can even wind up costing you money for repairs.

Different Types of Viruses

Today, there are several different types of viruses. Most of them infect your computer through attachments in emails, or by clicking on popup ads, or even simply visiting a website. Some viruses are harmful, and others malicious, but not a real threat, as stated previously. Sometimes, all that happens is that you get spyware dumped in to your system. Every week, a new, stronger virus is being created, making antivirus companies stay on their toes. But what are the different types of viruses out there?

• Trojan Viruses - This type of virus is probably the kind that is most often encountered. They lie in wait on websites, popup ads, and emails, and don't make themselves out to be threats. Some get caught right away by antivirus software, and are easily taken care of. Others, though, can be a bit sneakier. Trojans can be disguised to look like a legitimate file. But the second you open that file, you've infected your computer. Some Trojans are destructive, and others dump spyware in to your system.

• Worm Viruses - A worm is a very serious risk to your computer, and others. Worms are defined as a sub-class of viruses, and can spread without any interaction from users. When a worm infects your system, it uses file and information transfers to carry itself in to your system. Email is the preferred choice of travel, but really, you can pick them up just about anywhere, at any time, and they don't always make themselves known to your antivirus. The most dangerous part about a worm is that it can make replications of itself, and if it is in your email, it will infect every single person you have listed as email contacts. They are destructive, and can wipe out hard drives.

• Blended Threats - These are probably the most sophisticated form of a virus attack. Blended threats combine some of the worst attributes of malware, viruses, worms, and Trojans in to a single, but very serious threat. They aren't encountered very often, but when they are, watch out. They use vulnerabilities within your system to infiltrate, infect, and spread. They are also capable of spreading to other computers, like a worm does. But they don't attack just one part of your computer. In fact, they are capable of launching multiple attacks to.exe files, HTML files, and so on all at the same time.

Computer Virus Removal and Future Protection

Now, this should be obvious to most. The best way to remove viruses and protect your computer is by investing in antivirus software. Sure, you can download some antivirus programs for free, but they don't offer the full protection plan like the programs you purchase. Depending on what you do while on the internet will determine what kind of antivirus program you need. If you just play games, and surf the web for leisure, then you don't need anything overly fancy. But if you run your business on the web, like web designing and other such occupations, then you might want to spend a little extra and get the more advanced programs. Of course, these are just opinions and suggestions. In the end, it's personal preference on what you get.

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A Guide to Viruses and How to Prevent Them From Infecting Your Computer

A virus replicates itself and then sends itself through the Internet to other computers. The purpose is either to replicate, damage another computer or both. It doesn't need anyone to do anything to make it work; it is a self-contained and self driven program. That is why we should all find the best antivirus program we can to stay safe. A virus will normally get into your computer by being attached to a document or attachment that you download. It can do damage right away or sometimes it's timed to go off at a specific time or date.

A boot virus like disk killer or Michelangelo comes alive when the computer starts and this virus is very hard to get off your computer. Viruses that attach themselves to an install or executable file are called program viruses and they replicate themselves to all of the executable files on your computer, thus making them extremely hard to remove. Examples of these are the cascade and Sunday viruses.

Some viruses are called stealth viruses and they will change their file size to try to avoid being found by an antivirus program. Again, it all goes back to prevention and using the best antivirus software for your needs.

Documents from Microsoft office can be vulnerable to Micro Viruses. These viruses can infect all documents opened and it can be easily spread to other computers through sharing. Nuclear and DMV viruses are two examples of this kid of infection.

The newer viruses are getting much better at shutting down antivirus software. When it shuts down your antivirus it not only opens you up to other viruses, but it opens you up to malware and other such nasty worms. That is why it's imperative that we all have the best antivirus software possible installed on our computers and that it is always up to date.

Spyware is actually malware that has been designed to infect you through pages on the Internet. It can also come bundled in software that you might have installed on your computer. Spyware are not technically viruses but they, like viruses, have been the cause of many headaches and reformats over the years.

These can come from cookies, hijackers, adware, fake security software, key loggers and ransom-ware. Some new kinds of spyware are called root kits and they are virtually impossible to remove. Spyware is typically installed on a computer without the owner not even knowing about it. They are very hard to remove.

Ad-ware is software that is secretly installed on your computer. Its purpose is to produce pop-up ads and other forms of advertisements on your system. For every ad that you click on, you're giving the attacker money. This is why these types of programs are installed, to get clicks on a website. Hijackers, on the other hand, will actually take control of your web browser and take you to a web site that you didn't intend to visit. Again, the purpose of this is money. They take you to their site in the hopes that you will click on the links contained in it, they get paid for every click. They will also often change your homepage and change registry values. Other clues that you have been hijacked include browser plug-ins and add-ons that you didn't install.

What they call "rogue" or "fake" security software are programs that claim to be antivirus or antispyware software but in actuality, the program itself is the virus or spyware. It normally starts by a free online virus scan. Then it will give you a fake report telling you that you have tons of viruses on your computer and that the only way to get rid of them is to download the program. Once downloaded, it will give you more fake scan results and encourage you to give your credit card info to buy the full version of the product. This kind of virus will normally produce many pop-up warnings and error messages designed to scare people in to buying the full version.

These programs were made by smart people who know how to take advantage of an operating system as well as other security software like antivirus programs. The people who make these worms are from all over the world. They design and make these infections and then test them and modify them so they will infect as many people as possible and then they send them out to reproduce and spread and replicate on their own.

Many times these hackers will share information with each other about the weaknesses they have found in operating systems. Then they make malware to exploit that weakness and build a page that is infected with their creation and start advertising the page. Sometimes they will use a slight misspell of a popular web page and so if anyone hits the wrong key when typing in their favorite web page, they get this worm.

The companies that make our antivirus, anti-spyware software don't know about these threats until they happen and are reported to the company. They will get one of the worms and figure out how it works. At this point, they will create a fix for the problem and release it as an update. Once they update the definitions (which are the codes that tell the software what is good and what is bad) then you are protected from that malware in the future. Some companies update their definitions every day to try to stay ahead of the problems. Once the malware is out on the Internet the good software companies will then have the chance to figure out how it works and make the necessary adjustments for their software to combat the worm. However, this doesn't mean that you are protected 100% of the time, sometimes the updates are not enough for the good software to fully stop the malware. And many times the removal process for these worms is not fully figured out for weeks or months after the malware was launched.

What we have to understand is that no matter what kind of antivirus software we have installed on our computers, if we give permission for a program to install, the antivirus cannot stop it, all it can do is warn you. So we really need to be careful of what we install on our systems and we really need to have the best antivirus software we can get and keep it updated regularly to stay safe.

Here are some things you can do to stay safe and protect your self

• Stay educated on the latest methods used by these hackers. Most of these things can be stopped before they even start if you use common sense. If something seems wrong, it probably is and you should avoid it.

• Always have the best antivirus installed and up to date. You also need to keep windows updated.

• Always use a good firewall. Windows 7 has a firewall that works pretty well. But previous versions of windows firewall don't do enough. You can always find good free firewall programs online. But remember to only run one firewall and one antivirus.

• If you get a pop-up, don't click on it. Instead press the ctrl, alt and delete keys at the same time. Now click the programs tab and then select all Internet Explorer programs at once and select to end the task. Now you have just prevented a malware from infecting your computer.

• While browsing the Internet it is important to stay away from sites that regularly carry infections. These include pornographic sites, gambling sites, sites that show you how to be a hacker. Also if the domain or URL look strange or in any way unwelcoming, don't click on the site.

• Some will tell you to unplug your computer or to press the power button for 5 seconds if a pop up appears. This can do a lot of damage to an operating system and even to a hard drive so it is not recommended unless there is no other way to avoid it.

Alright, now that you are aware of what these viruses, malware and spyware actually are and what their purpose is, you need to know what to do if you still get infected.

Maybe you go to your favorite search engine to look up the symptoms that you are experiencing to find someplace to tell you how to get rid of this worm. If, for example, you get a pop up that tells you that it is a security alert, then go to your search engine and do a search for the exact words that it says. You don't need to pay for this information. There are sites out there like experts-exchange.com and bleepingcomputer.com that are great resources to get free advice and information.

There are a lot of people on these sites that have removed a lot of malware and they can help you.

If you find yourself about to download some software on the internet, always think about it first. Did you go looking for this software, or did you just kind of "accidentally" come across it? If your answer is the latter then avoid downloading it.

We must all be willing to really learn about these things so we can effectively combat them. If you don't want to put in the time to learn about it, then the alternative is to hire a professional who can do all the work for you. This can be expensive because you don't want to get the cheapest guy out there. But a reasonably priced tech should be fine.

Remember that even the best antivirus can't stop some of these programs, but you should use a good one and keep it updated. That also goes for anti-spyware software. Always think before you click and remember to check the URL's. If you do the few things recommended in this article you should have a much safer experience online.

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Protecting Your Personal Computer From Viruses

Malware software in computers is found all over the Internet. One should always remain conscious of downloading anything that is unfamiliar. Remember that any antivirus program can't give you a 100% virus protection. You should have the necessary skill in knowing how to prevent yourself from downloading virus infected files. Being a computer fanatic myself, I would like to share with you some useful advice on how you could protect your computer from getting virus infection and most especially how you could avoid downloading malicious files.

• Let's begin with getting e-mails. If you are unsure of the e-mail sender's identity, don't click it open, or seek help from someone you know.

• Never think about downloading all those keygens and program cracks. If you intend to keep your PC clean and free from infection, you should only buy your desired software from any authorized dealer. That way, you are sure to be free from any virus threat.

• Be sure that you use only the correct antivirus program. If you're the type who browses the Internet a lot, you have to confirm that you are using antivirus software developed especially to provide Internet security. There are several variations of anti-virus infection types. One example is the antivirus software which is solely created to scan e-mails. Another one is the "Trojan Removals," which as the name implies, are meant to eradicate Trojan horses.

• Stay away from using software from an unreliable source. For your own protection, it's better to use commercially available software either found in flash disks/DVDs or sent to your e-mail by a reputable seller.

If your task is to protect very secret data on your PC, then you must always opt to use a much secured operating program. There is a big discrepancy between each operating system and its corresponding security measures. A good example is Windows which is a good choice because it is compatible with several antivirus software, though the reason for this is that several viruses are targeted for it as well. If you don't feel comfortable enough on how you could avoid downloading an infected file and how you could be protected, it's advisable to use UNIX or Mac operating systems. Moreover, if you already know that your PC is infected, you have to quickly navigate over the Internet for useful information about the virus. You can type the information about this dilemma in countless search engines - there could be several users already sharing their advice. Otherwise, you can try to ask for assistance in forums which focuses on protecting your PC from viruses. Always be cautious, there are so many harmful Internet viruses and the number of victims has already increased dramatically.

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How To Prevent and Detect Computer Viruses

Is your computer running slower than your old Vic 20? Getting that dreaded black screen of death? Computer acting strange? Your computer could be infected with a computer virus. A computer virus puts your Internet security and privacy in jeopardy. In fact, it could lead you to having your personal information stolen; becoming the next victim of identity theft, one of the fastest growing crimes in Canada and the USA. Fortunately, there are some simple steps that you can take to help prevent and detect computer viruses.

It is paramount for your online security to have anti-virus software installed and running on your computer. You might be happy to know that you don't have to break the piggy bank to get anti-virus software; there is free anti-virus software available for download online. Don't forget to keep your anti-virus software up-to-date, to help protect you against the latest viruses and other Internet security threats.

In your quest to prevent and detect viruses, be sure to have anti-spyware software installed.Many computer viruses come bundled with spyware. Anti-virus software does detect most, but far from all spyware. You need anti-spyware software installed to detect and prevent spyware. There is free anti-spyware software online that has a good reputation. That said and done, there is so-called "free anti-spyware software" available for download online that is far from free; charging you around forty dollars to remove a "backdoor trojan" that may or may not exist and even infecting your computer with more malicious software. Bottom line; be sure that anti-spyware software is reputable before downloading.

It is paramount for your online security to install and run anti-keylogger software. This type of Internet security software is often forgotten. That is a big mistake however. More often than you'd care to know computer viruses contain a keylogger; spyware that secretly records every single keystroke and might even capture keystrokes. Anti-keylogger software will detect and block keystroke loggers.

Have a personal firewall installed on your computer to prevent and detect viruses and other malware. A firewall acts as a road block between your computer and the vast world of cyberspace; keeping the bad guys out and stopping any malicious software already installed on your computer from sending your personal data to criminals. A free personal firewall is included in Windows Vista, 7, and XP; make sure you have it activated.

Try to resist the urge to open email attachments from unknown senders.In fact, even if you know the sender it is wise to not open attachments you do not recognize or are not expecting. They could be infected with a computer virus or other malware.

Finally, stay away from sites containing warez, shareware, freeware, file-sharing, and other similar sites. They are notorious for containing malicious software, including computer viruses.

These steps will go a long ways in both preventing and detecting computer viruses and other malware. When it comes to computer viruses, and all online threats for that matter, an ounce of prevention is indeed worth a pound of cure.

Christopher is passionate about sharing his knowledge and expertise on online security and privacy. Visit Internet Security 101 for the tools and resources to protect your Internet security and privacy, including free Internet security software.

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How To Protect Yourself From Viruses

There are many computer users who don't know how to protect themselves against viruses and malware attacks. They often suffer from these attacks in the form of deleted files, broken system, or even stolen accounts. There are many companies which are claiming to protect you and help you avoid this, but which is the best solution for the regular user?

Computer viruses are programs, designed to spread from one computer to another, or even sent directly to the user, while at the same time they perform different kind of operations on the infected machines.

Viruses could be spread over the Internet via e-mails, infected files and downloads torrents, browser extensions, toolbars and even direct browser attacks (scripts).

In order to protect yourself from viruses and malicious attacks, you should be aware of them. There are two basic ways to understand if the operation you are about to take is dangerous or safe. The first method is to be very careful and limit the access to unknown websites and e-mails, which is not the perfect solution in some cases. The other way is to install trustworthy defense software, which could protect you and your computer from further threats.

A good example of quality anti-virus software is the Norton suite from Symantec. There are few different versions of the program to fit your needs. For example, the Norton Internet Security is one of the best suites for internet protection. It scans everything before it arrives in your computer. If there is any danger, Norton will aware you and avoid infection.

Another software which is able to provide you with a good and stable protection from viruses and hackers is the Kaspersky Internet Security. As well as the Norton Internet Security, Kaspersky scans files and e-mails before they arrive on your hard drive.

Choosing an antivirus program is a matter of personal opinion. Some users may choose a free protection, because they think that this is unnecessary expense, while some others won't give the free software a chance to prove itself, by going with a paid one.

Also there are few other tips you should know:
Keep your browser and operation systems up-to-date.Do not rely on the trial version of any defense software.Even you have installed antivirus software, never do open files that seems dangerous.Use the antivirus software to scan files before you use them. Some antivirus programs can even scan via e-mail, so that you can check if they are safe before they arrive to your computer.

As a conclusion I would like to advise you to keep your important files duplicated on an external drive, since any other types of hardware issues are possible.

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Types of Computer Viruses and How to Prevent Them

Computer viruses are an interesting thing and as much as we all hate them you can't deny how well-bred these beasts have become. They can do an amazing amount of damage in a very short time showing us how destructive the nature of human beings as a race can be. However, computer viruses can take years to engineer and with their ability to spread at alarming rates undetected through the most sophisticated prevention systems demonstrates just how complex the human mind has become.

Some of the most well known and most destructive virus's shutdown massive corporations until the virus could be contained. The ILOVEYOU virus erupted in the year 2000 and forced companies like Microsoft to shut down all of their email servers, an amazing feat considering the simplicity of the virus.

I wanted to take a moment to discuss some of the types of viruses and some of the things you can do to better protect yourself by becoming a better decision maker when using technology like email and internet.

A virus by definition is a small piece of computer code that embeds itself to what would otherwise be a safe program. They are called viruses because the spread just like a biological virus would and just like a living virus, a computer virus needs a host to live off of. Also, like viruses, computer viruses are very small in comparison to software programs. A common piece of software that could get infected would be your Internet Explorer web browser. When the browser is infected, every time you launch it the virus is launched to and does its dirty work. A virus's purpose of existence is to spread to as many computers as possible as fast as possible. Once the virus as infected as many computers as it can, systems begin to fail like security systems and a possible hacker can make his move.

A worm is another type of virus that utilizes security flaws (holes) in a piece of software or an operating system to exploit. Once a system is infected, the worm scans the network for other available host who also disclose the security hole so that it can replicate itself. Worms can spread very fast. For example, the Code Red worm replicated itself over 250,000 times in about nine hours in the summer of 2001. The destructive nature of a worm is to spread as fast as it can and cause congestion on networks bringing it to a stop - just like many living worms on earth!

Another common virus seen is called a Trojan horse. As you may imagine, this virus gets its name from the tale of the Trojan War when the Greeks pretended to sail away but instead hid inside a wooden horse outside the gates of Troy. The Trojans pulled the horse into their city as a victory trophy allowing the Greeks passed the city walls and eventually taking over Troy. A computer Trojan horse also disguises its self to trick a user into letting it into their computer. It may be hiding in a game or media file you download from the internet, or it may be a software program for school or work. Once the file is downloaded and executed, the virus is let free into your system.

Finally there is the email virus which is simply a virus spread via email. This type of virus will email hide in an email and when the recipient opens their email it will infect their system and then resend itself to other people who are in the recipient address book. The virus will send messages over and over trying different types of messages to coax someone to open it.

There are several steps someone can take to prevent these types of viruses.

The first line of defense it to keep your system up to date. May users do not take the time or simply ignore update their software. Many of the updates that software venders are security fixes. The longer you wait to update your computer the better chance you have of getting a computer virus.

Antivirus software can also be very helpful. These types of programs dedicate themselves to protecting user's computers and personal information. Some are free and some charge a one -time fee and possibly even a monthly fee. The best antivirus software to use is debatable and beyond the scope of this article. However, any antivirus is probably better than none.

Use common sense. If something looks off or too good to be true it normally is. Don't open emails or download files sent from people you don't know. Read messages that your computer prompts you with instead of just clicking "Continue" because it closes the window.

Finally, educate yourself on general internet safety. A few moments of your time may keep your financial and personal well being safe.

About the Author
Cory Clough is a web programmer and developer for many first class websites and has worked on several high profile projects. He enjoys playing guitar and the outdoors.

http://dubuque-computer-repair.com/
http://coryclough.info/

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