Which anti -virus is used to remove trojan horse,worms,viruses etc?

Which virus corrupts files and programs that are opened,closed,copied or renamed?

What type of virus resides in the RAM?

Which type of virus affects the boot sector of a floppy or hard disk?

Which type of virus enter the computer through a network like Internet while downloading or surfing various websites?

What helps you to scan files,folders,drives etc for viruses?

Which type of virus inserts unwanted text into documents and reduce the functionality of the computer?

Which type of  virus displays screen messages and destroys data?

Which is used to scan the system memory and locations that virus and security risks commonly attack?

VIRUS stands for