| No |
computer viruses |
effects to the computer |
how to get rid of it |
| 1 |
boot sector virus |
Boot Sector virus infects the storage device’s master boot record (MBR). Any media, whether it is bootable or not can trigger this virus. These viruses inject their code into the hard disk’s partition table. It then gets into the main memory once the computer restarts.
| You need to force power off during booting and you will get options for booting. Go to safe mode, go to run (windows key + r), type shell:startup and then enter. Delete files that may cause restart (usually some bat files or virus) and then check in task manager for unidentified startup programs. Finally, restart.
|
| 2 |
direct action virus |
Direct Action Virus quickly gets into the main memory, infects all programs/files/folders defined in Autoexec.bat path, and then deletes itself. It can also destroy the data present in a hard drive disk or USB attached to the computer.
| Restart Your Computer. In many cases, restarting your computer can remove a direct action virus. |
| 3 |
overwrite virus |
They have affected a wide range of operating systems including Windows, DOS, Macintosh, and Linux. They simply delete the data (partially or completely) and replace the original code with their own. They replace file content without changing its size. And once the file is infected, it cannot be restored and you will end up losing all data.
| Ensure that you create data backup from time to time to avoid any data loss.Use a strong Antivirus tool.
Never fall for phishing emails consisting of infected links and attachments. |
| 4 |
web scripting virus |
It breaches web browsers security, allowing attackers to inject client-side scripting into the web page. It propagates quite faster than other conventional viruses.
| The will help connect different devices to the internet. |
| 5 |
directory virus |
It infects the file by changing the DOS directory information. It changes DOS in such a way that it points to the virus code rather than pointing to the original program.
| Download antivirus software.Run a virus scan. Delete or quarantine infected files.Restart your computer. |
| 6 |
polymorphic virus |
Polymorphic viruses encode themselves using different encryption keys each time they infect a program or create a copy of themselves. Because of different encryption keys, it becomes very difficult for the antivirus software to find them.
| Press the Win + R keys at the same time to open the Run box.
Type rstrui in the box and press Enter to open System Restore.
Click Next, choose a restore point from the list and then click Next again.Confirm your restore point and then click Finish. Click Yes. Then wait for the process to complete.
Reboot your PC to see if the problem is resolved. |
| 7 |
macro virus |
Macro viruses are designed to corrupt data, insert words or pictures, move text, send files, format hard drives, or deliver even more destructive kinds of malware. They are transmitted through phishing emails. And they mostly target MS Excel, Word, and PowerPoint files.
| If you think one of your Microsoft Word or Excel files has a macro virus, open the document in Safe Mode. Then select View and double-click the Macros icon. From there, go to Organizer and then use the dropdown to find the infected file. Then, all you need to do is delete it and it should remove it from the file.. |
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