Effect of Computer Virus
Different Types of Computer Viruses
Computer virus is a software program written with malicious intentions. There are number of computer viruses that can impede the functioning of your computer system. Let us find out the different types of computer viruses.
Did You Know?
In 2010, Stuxnet virus targeted Siemens Industrial Software and Equipment. There are allegations that this virus is a part of a U.S. and Israeli intelligence operation named "Operation Olympic Games" and it hit Iran's nuclear plant Natanz.
Computer virus is a harmful software program written intentionally to enter a computer without the user's permission or knowledge. It has the ability to replicate itself, thus continuing to spread. Some viruses do little but replicate, while others can cause severe harm or adversely affect the program and performance of the system. A virus should never be assumed harmless and left on a system.
There are different types of viruses which can be classified according to their origin, techniques, types of files they infect, where they hide, the kind of damage they cause, the type of operating system, or platform they attack. Let us have a look at few of them.
Memory Resident Virus
These viruses fix themselves in the computer memory and get activated whenever the OS runs and infects all the files that are then opened.
Hideout: This type of virus hides in the RAM and stays there even after the malicious code is executed. It gets control over the system memory and allocate memory blocks through which it runs its own code, and executes the code when any function is executed.
Target: It can corrupt files and programs that are opened, closed, copied, renamed, etc.
Examples: Randex, CMJ, Meve, and MrKlunky
Protection: Install an antivirus program.
Direct Action Viruses
The main purpose of this virus is to replicate and take action when it is executed. When a specific condition is met, the virus will go into action and infect files in the directory
Computer virus is a software program written with malicious intentions. There are number of computer viruses that can impede the functioning of your computer system. Let us find out the different types of computer viruses.
Did You Know?
In 2010, Stuxnet virus targeted Siemens Industrial Software and Equipment. There are allegations that this virus is a part of a U.S. and Israeli intelligence operation named "Operation Olympic Games" and it hit Iran's nuclear plant Natanz.
Computer virus is a harmful software program written intentionally to enter a computer without the user's permission or knowledge. It has the ability to replicate itself, thus continuing to spread. Some viruses do little but replicate, while others can cause severe harm or adversely affect the program and performance of the system. A virus should never be assumed harmless and left on a system.
There are different types of viruses which can be classified according to their origin, techniques, types of files they infect, where they hide, the kind of damage they cause, the type of operating system, or platform they attack. Let us have a look at few of them.
Memory Resident Virus
These viruses fix themselves in the computer memory and get activated whenever the OS runs and infects all the files that are then opened.
Hideout: This type of virus hides in the RAM and stays there even after the malicious code is executed. It gets control over the system memory and allocate memory blocks through which it runs its own code, and executes the code when any function is executed.
Target: It can corrupt files and programs that are opened, closed, copied, renamed, etc.
Examples: Randex, CMJ, Meve, and MrKlunky
Protection: Install an antivirus program.
Direct Action Viruses
The main purpose of this virus is to replicate and take action when it is executed. When a specific condition is met, the virus will go into action and infect files in the directory