A backdoor is a kind of a Trojan horse virus. A Trojan horse virus is a file that appears to be one thing but is really a virus, for instance if you downloaded a certain screensaver, it would actually be a virus.
On the other hand, a backdoor is a term that means unauthorized access to a computer. It attacks either by spam e-mail, downloading files, or visiting certain websites. The way a hacker writes a backdoor is by using a program that builds an internet server, the hacker puts in a random IP address, and a TCP port number to communicate with it. They can then see everything you do, they can log keystrokes, look at files, and even launch webcams.
The Melissa virus is a mass-mailing macro virus. It can effect email that is sent and infect the computer when the email is opened.
how do viruses effect your computer
That entirely depends on the design of the virus.
No known computer virus has ever had a good effect. They are malicious and damaging.
do not worry about anything if we have a good antivirus program then it cant affect our computer with a virus
1 second
no, ROM cannot be wriitten
name the computer virus
Virus
yes, a computer virus can effect the way a video plays back. It can slow down the video, and take quite alot longer to load.
the effect of a virus in a computer can harm and crash your computer if it isn't scanned by a security program but if your talking about a virus in the human body it makes you sick or just multiplies and leaves
it is a virus that comes from certain game websites witch can effect your computer turning it into to a zombie iphones and ipods can be damaged if connected to your computer