The type of computer virus you are talking about is called a "file infector". A file infector, like you stated in your question, appends its code to an uninfected file. Computer viruses embed themselves inside another, normal program because they need read and write capabilities in order to execute its payload.
There are about nine types of computer viruses. They include the boot sector virus. the browser hijacker, direct action virus, file infector virus, macro virus, Multipartite Virus, Polymorphic Virus, Resident Virus, and Web Scripting Virus.
file infector infects files
1. Boot Sector Virus2. Browser Hijacker3. Direct Action Virus4. File Infector Virus5. Macro Virus6. Multipartite Virus7. Polymorphic Virus
1.Trojan Horse 2.Worm 3.Boot Sector virus 4.Macro viruses 5.Companion virus 6.File Infector 7.Memory Resident Viruses 8.Spyware 9.Adware 10.key loggers
1.Trojan 2.Worm 3.File infector 4.Macro 5.Boot Sector viruses
when you download a file that has a virus
A multipartite virus is a combination of a boot sector virus and a file virus. It can hide in either type of program.
Here you go... Browser Hijacker, File Infector, Macro Virus, Polymorphic Virus, Multipartite Virus, Direct Action Virus, Boot Sector Virus, Web Scripting Virus, Memory Resident Virus, FAT Virus.
drop and drag a made virus into the file and then e-mail it
(1) file virus (2) boot sector virus
i m like bassie for how to make virus