|Trojans are programs that start up
silently and send information out to a hacker. They are dangerous to you
because they can allow the hacker to steal information such as passwords,
credit card numbers, and banking information. This program is a safe way
to see how well you are protected from a real attack.
Quote from the website http://www.misec.net/trojansimulator/
For years you have been able to test your virus scanner with the harmless "Eicar" test file. Using the just released "Trojan Simulator" you can now test your trojan scanner in the same manner, using a harmless demonstration trojan. This is a risk-free way to see how your security software behaves in a real-world situation.