27-06-2012, 01:14 PM
Seminar on Trojans
Seminar on Trojans.ppt (Size: 1.44 MB / Downloads: 40)
What is a Trojan?
Trojans are malware
Named after Odysseus’s mythical trick
Embedded in a program
Cause a variety of undesired effects
Not simple to define!
Why are Trojans Hard to Define?
Definition creep!
Should only refer only to infected file
Term expanded to refer to effects file has as well
Trickery used to prevent program removal commonly classified as trojan
A Trojan is Not A Virus
Confusion caused by virus scanners
Viruses infect other files
The goals are different
Viruses do not rely on tricking the user
Viruses do require action from the user
A Trojan is Not a Worm
Worms do not require action from the user
Worms exploit security flaws
Worms spread themselves
Worms typically make multiple copies of themselves
What are Some Properties of Trojans?
Use trickery in some form
Do not typically spread themselves
File they are attached to has to be put into use at least once
Have means to continue running
Can be added to virtually anything