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Install an antivirus software
If you wonder how to get rid of a computer virus, or a virus on your mobile device, the answer is simple - install an antivirus. A good antivirus software is essential, if you want to keep your personal data and files (pictures, videos, documents, etc.) to yourself. If you don't have an antivirus software installed, make sure to install one as quick as possible.
There are different types of computer virus, but this type can be considered the most dangerous computer virus. Win32/Sality.AT is a malware which deletes everything it finds, by turning it into a shortcut file. It infects everything, even files stored on USB or external Hard Drives that came in touch with the computer and if you connect them (the external Hard drive and USB) to another computer and open one of the shortcut (malware-infected) files, you will infect that computer as well.
The best way to get rid of this infection is via Safe Mode (click here to learn how to boot into safe mode), while all the pieces of software are "asleep."
Once you are in Safe Mode, follow the steps below:
Viruses are designed to deprive you of the pleasure to browse the net and download files quickly and nowadays it is difficult to tell which is the worst computer virus. The solution is to remove them; however, there are some viruses which may incapacitate your antivirus and prevent it from operating normally. If you try reinstalling it or install a different one, the result will be the same.
If you wonder how to get rid of a virus on your computer, you need to access the safe mode (so that the virus remains inactive). If don't know how to get into Safe Mode, check the don't know how to boot in Safe Mode guide to find out.
Download a fresh copy of an antivirus software and scan your computer. Since the virus (or viruses) is inactive, it will be easier for the antivirus to delete it. *If you are not sure which antivirus software to download and install, check out the don't know which antivirus software to install solutions.
Run a full malware scan with Malwarebytes Anti-Malware followed by SFC /SCANNOW command in CMD (open the start menu and type cmd in the search box, right-click on it and Run as Administrator, and type SFC /SCANNOW in the window) to repair any system file damage the malware has done.
Malwarebytes Anti-Malware (MBAM) is a free computer virus removal tool (that offers a premium plan, too). It is an anti-malware software that scans for, identifies the symptoms of computer virus (or malicious software), and removes different types of malicious software (adware, spyware, trojans). Also, it offers an easy-to-use interface and a short wait time for scans.
Download it from the official website, install it on your computer, click of the Scan Now button and wait for the treats to be eliminated.
MBAM also has a premium version which offers a full-time background 'Malware Protection' and Malicious Website Protection, and a shorter wait time for scans, which is not the case with the free version.
Note: Although MBAM automatically updates its database, you can also check for updates manually by clicking Update. For best results, it is recommended to install it and scan for viruses with it while you are in safe mode. If you don't know how to enter the safe mode, click here to learn more.
If you see annoying advertisements you cannot close, or get redirected to a different website without your consent, it's possible that your computer is infected with a malicious adware.
Adware is a term frequently used to describe a form of malware (malicious software) which presents unwanted advertisements when you browse the net. The advertisements produced by adware are sometimes in the form of a pop-up window titled "an offer you can't miss" or some similar phrazes. Those advertisements automatically open webpages infected with a malware (virus, worm, spyware and etc.) which invaded your computer without your knowledge.
If you wonder how to get rid of a virus on your computer, and of other types of malicious software, the best way to fight adwares (and other types of malicious software) is to install an antivirus, antispyware or an adware removal tool. Malwarebytes' Anti-Malware, (for Windows and Mac OS), SuperAntiSpyware (for Windows only) and BitDefender Adware Removal Tool (for Windows and Mac OS) are the most downloaded and trusted. Install them and run periodic scans. Also, be careful what web pages you visit and make sure to install software from trustworthy webpages only (Cnet, Filehippo etc.).
Considered to be the worst computer virus, ransomware is a type of malware that restricts the users' access to the computer and forces the users to pay a "ransom" to the operators of the malware in order to remove the restriction. Although very rare to get, it can sometimes cause data loss (you will have to reinstall Windows, and the "C:" drive will be wiped). It can also prevent you from accessing Windows, encrypt files so you can't use them, stop certain software from running (e.g the web browser) make you complete surveys and etc.
If you wonder how to detect spyware on computer (which is considered the most dangerous computer virus, by a group of users) and remove it, try installing SuperAntiSpyware. SuperAntiSpyware is one of the top tools for removing malware, viruses and other threats. It detects and removes different types of malware (such as Spyware, Adware, Trojans and etc.).
It doesn't ask for a lot of resources from your computer (it won't slow it down), and it won't cause you trouble if you have already installed another antispyware or antivirus.
Download it from the official website, install it, click on Scan this computer and scan your computer from time to time.
Note: To unlock all the features SuperAntiSpyware has, install the full version (i.e. the Professional Edition).
To define computer spyware: it is a piece of software designed to steal personal data (especially credit card numbers, account passwords etc.), without your knowledge.
How do you get spyware on your computer? There are many ways for spywares to invade your computer, such as: visiting websites like "Enter our site and win an Iphone" or "Click here to download ..."(any software which is not free). This means that spywares are harmful only if you have access to the internet. Once they invade your computer they store everything you write and periodically send it to the creator of the spyware who most often "unloads" your credit card.
How to detect spyware on computer? The best way to detect and fight against them is to install an antivirus, antimalware or an antispyware software. Malwarebytes' Anti-Malware (for Windows and Mac OS) and SuperAntiSpyware (for Windows only) are known to protect many computers from being invaded by spywares. Install one of them and run periodic scans.
Note: If you use a computer and you have sensitive data stored on it, it would be better to buy the full version of one of these softwares (also called Internet security). It will run full scans in the background and the wait time will be shorter.
Keyloggers are designed to record every single letter you write on your keyboard. They are mostly used to steal personal data (credit card numbers, passwords) because they consume minimum resources and are hardly noticed by users. But, some people use them to control what their children do when they use the computer.
Although they share common traits with spywares (they both spy on the user's activity), they can be accessed by the user (if he manages to guess the secret combination, e.g. Ctrl + Shift + 1) and reprogrammed (change the location where the keylogger files are stored, change the email to which keylogger files are sent and etc.). Unless you have an access to the net, you cannot be harmed by keyloggers.
The best way to fight them is to install an antivirus or an antispyware software. Malwarebytes' Anti-Malware (a free computer virus removal tool, with an option for premium features) is one of the best options to fight keyloggers. Also, scan your computer more often and AVOID VISITING SUSPICIOUS PAGES, which is the best computer virus protection.
Note: If you want to use a keylogger to watch over your child(ren), download it from trustworthy sites only (e.g. Cnet), because you risk becoming someone else's "child" without your knowledge.
Scan for and remove zombie/bot malware infections
A botnet is a network consisting of hacked computers that are infected by malware and controlled by the botnet owner without the computer owner’s consent and knowledge.
The bots can be used to launch DDoS attacks that can cause a website to go offline, send spam messages, drive fake traffic, click advertisements and much more, depending on the botnet owner. Normally the user won’t even notice that their computer is a zombie bot being controlled because the malware is programmed to stay hidden as long as possible, by bypassing both known antivirus or firewall software and does not damage nor change any part of the operating system that may trigger the owner’s suspicion.
The best way to remove a Zombie/Bot malware infection is through Safe Mode. To get into Safe Mode:
If you use Windows versions other than Windows 8(.1)/10: Restart your computer and press F8 (or F12) before the Windows logo appears; *If you use Windows 8(.1)/10: hold the SHIFT key and click Restart at the login screen.
Once the Advanced boot screen appears highlight Safe mode with Networking out of the offered options and press Enter on your keyboard (if you are not sure how, read this);
The question does my computer have malware is sometimes difficult to answer, because malwares are available in all shapes and sizes. Junkware Removal Tool is a utility that searches for and removes common adwares, toolbars, and potentially unwanted programs (PUPs) from your computer. A common tactic among freeware publishers is to offer their products for free, but "equip" them with PUPs in order to earn revenue. This tool will help you remove these types of programs.
Click here to download it and once you've had it downloaded, install it.
Once you run the Junkware Removal Tool, it will scan your computer and remove every trace of these programs including their files, registry keys, and folders stored in your computer quickly and efficiently.
Does my computer have malware? Sometimes, this question is difficult to answer because there are different types of malware (some easily noticeable, others not). Browser hijacker is a type of malware that alters the search and error page of web browser and redirects the user to a page set by the developer of the hijacker (which is often malicious). Browser hijacker is created for a number of reasons among which your personal data (Credit card number). A computer can get affected with browser hijacker virus through a software, e-mail and etc.
Your computer is infected with hijacker if:
The Default search engine (Google, Yahoo, Bing) of your browser alters without your permission
The default home page of your browser is not the one you've set as default (e.g. Google, Yahoo, Bing or other)
You are flooded with advertisements
You are automatically directed to another webpage you had no intention to visit (e.g. you want to open facebook.com, but you end up being redirected to anywebpage.com)
Removing it in the Control Panel (Start -> Control Panel -> Programs and Features/Uninstall a program) is a temporary solution because once you restart your browser (or computer) everything will be the same.
How to clean computer from malware, including hijackers? You can remove hijackers using Malwarebytes' Anti-Malware, which is one of the best for the task. Enter the Safe Mode and run a full scan of your computer. To get into the safe mode:
If you use Windows versions other thanWindows 8(.1)/10: Restart your computer and press F8 (or F12) before the Windows logo appears
If you use Windows 8(.1)/10: hold the SHIFT key and click Restart at the login screen
Once the Advanced boot screen appears, highlight Safe mode with Networking out of the offered options and press Enter on your keyboard.
Turn on your computer and press and hold the Shift key until you see the Apple logo and a small progress bar
After you enter the safe mode, install Malwarebytes and run a full scan. Once the scan is completed, and the hijacker deleted, restart your computer.
AdwCleaner is a program that scans for and deletes Adwares, Toolbars and other Potentially Unwanted Programs (PUPs) from your computer. By using AdwCleaner you can easily remove many of these types of malware and have a better user experience on your computer while browsing the web.
The types of programs that AdwCleaner targets are usually free programs that you download from the net. These programs are usually installed along with the program you downloaded. Unless you perform a Custom install, these unwanted programs will automatically be installed on your computer leaving you with extra browser toolbars, adware, and other unwanted programs. AdwCleaner is designed to prevent this.
You will then be presented with a screen that contains a Scan and Clean button. Click the Scan button to scan your computer for unwanted programs and then display all the files, folders, and registry entries found on your computer that are used by adware programs.
Once the scan is completed, look through the scan results and uncheck any entries you have no desire to remove.
Then, click the Clean button, which will cause AdwCleaner to reboot your computer and remove the files and registry entries associated with the various adware that you are removing.
After the removal process is completed, AdwCleaner will display a log showing the files, folders, and registry entries that were removed on the next startup.
A browser toolbar is usually a horizontal line with shortcut icons on it that resides within a browser's window. Its primary purpose is to provide a better user experience. However, some toolbars can be harmful. Almost every computer user has come across browser toolbars that he/she didn't (want to) install showing up on the screen. They usually get installed when you install a piece of software, without your awareness or consent, and certain toolbars can make way for a virus in your computer, by redirecting you to a malicious website automatically.
A Backdoor Trojan is a malicious software that usually finds a way into its victim's computers without their knowledge or consent, through websites, software and etc. It allows the software developer that created it to control the computer of the victim and steal sensitive data.
To delete a Backdoor Trojan, and every trojan computer virus, you need an antivirus software and free time. Malwarebytes' Anti-Malware is one of the best for the task. The best way to remove a Backdoor Trojan is through safe mode:
Boot your computer in safe mode and once it is in safe mode, install a fresh copy of Malwarebytes Anti-Malware (or other antivirus software) and run a FULL scan, to ensure that everything is scanned thoroughly. Once the Trojan is deleted, restart your computer.
If you use a mobile device, you can download Malwarebytes Anti-Malware for free, from Google Play (Android) and App Store (iOS). Once you install it in your mobile device, run periodic scans to keep your data safe.
Scan for viruses in Safe Mode / Safe Boot (Mac)
Viruses are designed to deprive you of the pleasure to browse the net and download files quickly. The solution is to remove them; however, there are some viruses which may incapacitate your antivirus and prevent it from operating normally. If you try reinstalling it or install a different one, the result will be the same.
In a situation like this, you need to access the safe mode or safe boot (so that the virus remains inactive). If you are not sure how to get into safe mode, click don't know how to boot in Safe Mode guide.
Once you are in safe mode, download a fresh copy of an antivirus software and scan your computer. Since the virus (or viruses) is inactive it will be easier for the antivirus to delete it (them). Also, you can run a full malware scan with Malwarebytes' Anti-Malware to make sure that the virus(es) is(are) removed.