A computer virus is found to be the reason for many computer issues and malfunctions. These computer viruses can spread rapidly if the computers are not protected adequately. If these viruses get unnoticed or untreated, it can make your computer unusable by opening up a host of connected issues such as hacking of emails or identity theft. So you must protect your computer systems and networks.
Human beings are infected by viruses and become ill. These computer viruses are named after viruses that cause infection in the human body. The doctors are trained to diagnose the virus infection based on the symptoms shown by the body during illness. The IT professionals trained in cyber security framework can identify the virus affected issues.
Signs of Computer Virus Infection
- Unexpected crashes or blue screen faults
- Slowing down of the working
- Missing of the files
- Low storage problem
- Unusual behavior
- Repeated browser pop-ups
- The appearance of unknown programs
- Disabling of security software
- Increased network activity
How does computer virus affect computer systems?
There are computer viruses that are programmed to harm your devices and systems. They can damage the files or delete the files and programs or reformat the hard drive. Other viruses generally replicate themselves or create a situation of having a flood of network traffic that is impossible to carry out any online activity.
Read More: one piece filler list link
Types of Computer Viruses
These computer viruses can infect any computer and can cause severe damage to the device. Installing an up-to-date anti-virus program is the best way of protecting your computer systems against viruses. There are several types of computer viruses that occupy the IT and web world.
- Macro Viruses: These computer viruses attach themselves to the files which support macros and the sequences of commands are executed easily with a keystroke. These viruses are commonly found in Microsoft Word and Excel sheets. These viruses get activated when you open the affected file. If the user downloads the file to its computer and then open it, these viruses will spread to other .xls and .docx files present on the computer.
- Browser Hijackers: These types of viruses affect and take control of certain features of the user’s browser. Such viruses change the homepage to some false search engine and rewrite the settings so that you can’t change it. It happens when you type the address and press the Enter key, the virus will take you to an unknown website and start demanding to click on a banner or sign up for something for accessing the site you want to search. Such viruses are intended for generating revenue by showing clickable ads in that browser.
- File Infectors: We know that Macro viruses infect files that are made of MS office. These file infectors get attached to the executable files with .exe or .com extensions. If you open the infected file to launch the program, it means you’re unknowingly launching the virus. Then, the virus takes over the program and spread it to other executable files in the hard drive or the computer network.
- Web Scripting Virus: The web-scripting virus generally targets popular websites in a very cunning way. It overwrites the website code by inserting links and videos that would install malicious software. In most cases, these website owners don’t even know they’re hosting harmful content. In some cases, these scripting viruses send textual and visual ads for generating revenue.
- Boot Sector Virus: There are times when the computers are booted from the floppy disks and can infect the system partition of the hard drive and launch on computer startup. Nowadays these viruses are rare and only served via remaining forms of USB and external hard drive.