Trojan Horses

Definition:  Get them to run a program for you.

Difficulty Rating:  Easy if not targeted.  Moderate or worse otherwise.
 

Methods:

Idea:  Write a program that displays naughty pictures.  Have it also dial Rumania on the phone.
Problem:  Not targettable.  Need to write a useful program.  Owners of phone company in jail.

Idea:  Write a program that seems to be useful at first.
Problem:  Not targettable.

Idea:  Write a web page with a Java applet that asks for your AOL password.
Problem:  Not targettable.  The titlebar of the dialogbox.  AOL's repeated warnings.

Idea:  Send someone mail with a datafile containing an autorun macro.
Problem:  Many viewers won't run the macro.  The target might not have a viewer.
Bonus:  Probably the easiest of the targetted attacks.