FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -File viruses attach themselves to files that start up programs. So when the file is activated the virus then turns active and then tries to work its way into the memory and infect other files as well. Multipartite virus is a hybrid virus between a file virus and a boot-sector virus. This makes it really hard to detect.

Detailed explanation-2: -Computer viruses hijack your system’s code and resources in order to replicate, causing performance issues on all device types. When executed, a computer virus releases its payload and begins its attack. Almost immediately, you’ll start to see the impact of what computer viruses can do.

Detailed explanation-3: -A virus is a computer program that replicates itself by modifying system or application software and then traveling from computer to computer, via disks or a network.

Detailed explanation-4: -Since the MBR executes every time a computer is started, a boot sector virus is extremely dangerous. Once the boot code on the drive is infected, the virus will be loaded into memory on every startup. From memory, the boot virus can spread to every disk that the system reads.

Detailed explanation-5: -A computer worm is a type of malware whose primary function is to self-replicate and infect other computers while remaining active on infected systems. A computer worm duplicates itself to spread to uninfected computers.