Trojans are malicious applications that pose themselves as legitimate software in order to trick users to install them. Once on the victim's machine, it may run any number of malicious process to steal vital information or inflict damage to other software.
FoxPass poses as an application designed to crack into Myspace accounts. Its true purpose is to trick the user's attempting to steal myspace login credentials. FoxPass displays an error tricking the user into thinking the application is broke. It instead steals all the username and password information stored by Mozilla FireFox and stores it in a text file in the C:\Windows directory.