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How to Prevent your Computer from a Virus?
• Download only legal software.
• Don’t open any unknown e-mail.
• Don’t open any e-mail attachment from unknown sources.
• Don’t download music, program or games from unknown sources on the Internet.
Prime (Ver. 2.2)-VII • Install an antivirus program in your computer system. COMPUTER VIRUS
• Scan Pen Drive, CD and any other external storage device for viruses before opening in
computer.
Malware
A malware is a type of malicious program designed to damage or carryout other unwanted
82 actions on a computer system. In Spanish, mal is a prefix that means bad, making the term 83
badware, which is a good way to remember it.
There are different types of malware programs that can affect the computer in the similar
way a virus do. Some of them are worm, trojan horse, spyware, ramsomware, rootkit and
backdoor.
Worms
A computer worm is a type of malware that has the capability to replicate itself without any
human interaction. It consumes lots of memory space during replication. Once a computer
has been infected by a worm, its processing speed slows down, works unexpectedly, and
halts other tasks. A computer worm can spread itself from one computer to the other by
replication process.
Trojan Horse
The purpose of a trojan horse is to conceal itself inside the software that seems legitimate.
When the software is installed on the system, the trojan gets activated and infects the host
system.
Spyware
Spyware is a type of malware program. The primary function of the spyware is to snoop on a
user’s activity and sends back the information it gathers to a hacker.

