Community service college in mahd al dahab كلية المجتمع بالمهد Viruses, Worms and Trojan horse. PREPERARED BY: AHMED YOUNES SHDEFAT YOUNES IBRAHEM GELY. Outline. Definitions. Historical view. Types of Malicious Software . Impacts of Malicious Software . Prevention. References.
PREPERARED BY:AHMED YOUNES SHDEFAT
YOUNES IBRAHEM GELY
Viruses, Worms, and Trojan Horses
infects only executable file those with extension .EXE, .COM, etc. some virus destroy data files while the others with an intention of spreading by infecting only the executable files
reside in the boot sector of the disk and spread by coping onto the boot sector of all the floppies used on the machine. These virus infect a system only when the system is booted from a infected floppy or disk
There are at least three layers of physical security: