Virus worms and Trojan horses in network security in Hindi |virus, worm and Trojan horse Distinction

What are viruses, worms and Trojan horses in Hindi? Lets also learn about difference between a virus, a worm and a Trojan horse. Network Security attack: http://youtu.be/Avyn759-4tI Viruses, Worms & Trojans What Are we going to learn? Definition of Virus Definition of worms Definition of Trojan horse Characteristics of Virus, worms and Trojan Horses Difference Between Virus, worms and Trojan Horses. Definition of Virus A computer virus is a piece of code, that attaches itself to another computer program and modifies the host program and runs SECRETLY in the background when the host program is running. Definition of Worms A computer worm is a program that replicates itself sends copies from computer to computer across the network connection. On arrival to a new computer the worm may be activated to replicate itself and propagate again. Definition of Trojan Horse A Trojan Horse is a program that does not modify the host program neither replicates itself but performs some separate malicious activity in the background. Characteristics of Viruses Viruses: Computer viruses modify the host program to perform unwanted functions. For example, suppose you download a virus infected gallery application, and run it, the gallery application can be modified by the virus to send your images to some Remote database. Characteristics of worms Worms: A worm is a computer program that replicates itself and propagates to other computers on the network. On arrival on the new computer it may again be activated to replicate itself. Worms SLOW DOWN the computers by eating up the resources. Worms may also rename itself as a system process to hide from being noticed. Characteristics of Trojan Horses Trojan Horses: Trojan horse is a program which performs malicious activity in the background. Unlike viruses, Trojan horses do not modify the host program, nor like worms it replicates itself. Trojan horse allows the original program to perform its function but also does malicious activity without being noticed as, Trojan horses cannot be detected by looking at the source code of the host software. For Example, A login program which is infected by Trojan horse, performs the login operation without any problem but also collects and stores the password in the background, which is a malicious activity. THANK YOU!!!! #virus #worm #Trojanhorse Chapters: 0:00-0:51 Introduction 0:51-1:32 Definition of virus 1:32-2:42 Definition of worms 2:42-3:22 Definition of Trojan Horse 3:22-4:25 Characteristics of virus 4:25-5:06 Characteristics of worms 5:06-6:18 Characteristics of Trojan Horse 6:18-7:45 Difference between virus worms and Trojan Horse