Virus:
Virus usually included in a file or a program, almost all virus included it self to an executable (*exe) file. Virus won't run if the infected program doesn't run. Virus can't duplicate it self without user helps.
Worm:
The difference between Worm and Virus is Worm may duplicate it self without user helps. Worm just duplicate it self, but Worm doesn't infect it self to file or program
Trojan:
The main idea of the maker of Trojan is to control victim's computer remotely
Backdoor:
Backdoor try to manipulate data using permission granted. Via logon or other authentication. Initially, Backdoor is made by programmer to have all access to their application (to repair application if crash or bug detected). But other developer use it to destroy.
Malware:
Malware is a program that try to find the weakness of other program
Spyware:
Spyware is used to send victim's data silently
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| Virus, Worm, Trojan, Backdoor, etc |
Worm:
The difference between Worm and Virus is Worm may duplicate it self without user helps. Worm just duplicate it self, but Worm doesn't infect it self to file or program
Trojan:
The main idea of the maker of Trojan is to control victim's computer remotely
Backdoor:
Backdoor try to manipulate data using permission granted. Via logon or other authentication. Initially, Backdoor is made by programmer to have all access to their application (to repair application if crash or bug detected). But other developer use it to destroy.
Malware:
Malware is a program that try to find the weakness of other program
Spyware:
Spyware is used to send victim's data silently
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