Saturday, 17 September 2011

Virus Worms and Trojans Definatioin

Virus:- 

 Viruses are malicious files that attached themselves to a host file and depend on it for propagation across devices. Viruses do not have the capability to spread and infect devices on their own.
A virus could attach itself to a document file. When the infected file or document is transferred to another device, virus also get copied.

Worms

Like virus worms are also malicious files that cause harm to the target device, The main difference between virus and worm is that worm have their own mechanism for transmission and infection purpose they have ability to  automatically transmit itself.

Trojans

Trojans are malicioius files that can be best described as worms which can be used for carrying out harmful activities on target device.The main difference between Trojans and Worms is that Trojansrequire the user to explicitly install them on target device.  

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