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Definition / Definition of Computer Virus, Worm, Trojan, Spyware, features and Infection Transmission Engineering


Meaning Definition / Definition of Virus and Virus Variants:

1. Meaning Definition / Definition of Computer Virus
A computer virus is a computer program that duplicates or duplicate themselves by inserting a copy or copies of itself into the media storage / document into the network and secretly without the knowledge of the computer user. The effects of computer viruses is very diverse ranging from only appear strange messages to damage the computer and delete files or documents we.

2. Meaning Definition / Definition Variant Worm Virus, Trojans and Spyware
a. Worm
Worm is a potential security weaknesses or gaps in our computers that allows an infected computer without the need to execute a file that usually occurs on the network.
b. Trojan
Trojan is a program that allows computer controlled others through the network or the Internet.
c. Spyware
Spyware is an application of data leaking information or user behavior habits in using the computer to outside parties without our knowing it. Usually used by the advertiser.

If we see irregularities in the storage medium such as a file called strange that we never made or not file the application type / application, but claimed as an application then do not we click, we go or we run that computer viruses are not transmitted to a computer that we use.

We Tanda-Tanda/Ciri-Ciri Computers Affected / Infected Computer Virus:
- Computer running slower than normal
- Often out error messages or odd-odd
- Change the display on the computer
- Storage media such as floppy disks, flash, and so strange file copying directly without our coffee when we connect to the computer.
- Computer restarts itself like or crash while walking.
- Like the message or writing strange
- Computer hangs or stops responding to us.
- Disk can not be accessed
- Printer and other devices can not be used although there is no problem of hardware and software drivers.
- Often a menu or dialog box that error or damaged.
- Loss of some basic functions a computer.
- Computer trying to connect with the Internet or network without we order.
- Files that we store on computers or storage media go away or hidden viruses. etc. ...

Sample forms of media from computer viruses that one computer to another computer:
- Media Storage (disk, flash, external hard drives, zipdisk, cd, dvd, BluRay disc, cartridge, etc.)
- Network lan, wan, man, internet and so on.
- File attachment or file attachments in emails or other electronic messages.
- File software (the software) who rode a computer virus.

The most powerful way that we are not exposed to computer viruses is to install an original computer program is not pirated or original is not saddled with the virus and friends, do not connect the computer to the network or the Internet, and never to open or execute files from a computer other.

But I like it too extreme and less use of slang in everyday computer because we usually do the exchange of data or files with other computers in the form of job files, image files, file attachments, music files, video files, and so forth.

So to avoid computer virus infected and then we must be alert to interact with files from other computers, storage media files from other people, email attachments, network file sharing, computer security holes, and others. Install a good antivirus is updated regularly and firewall programs for network and anti-spyware and adware to address other types of computer problems.
source:http://organisasi.org/

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