A virus is a parasitic program written to intentionally enter a computer without the user’s permissions or knowledge. The word parasitic is used because a virus attaches to files or boot sectors and replicates itself, which allowed it to spread. Through some viruses do little more than copy themselves, other than cause serious damage or effect program and system performance. A virus should never be assumed harmless or left on a system.
1. Program: Executable programs file such as those ending with the
1. Program: Executable programs file such as those ending with the
extensions .Com,.Exe,.Ovl, .Drv, .Sys, .Bin
2. Boot: Boot Record, Master Boot, FAT and Partition Table.
Multipartite: Both program and boot infector.
2. Boot: Boot Record, Master Boot, FAT and Partition Table.
Multipartite: Both program and boot infector.
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