Its weird to see this question on this site but you are lucky that I am here to answer
About Trojan-Droppers
This type of trojan contains one or more malicious programs, which it will secretly install and execute.
A Trojan-Dropper is a type of trojan that drops different type of standalone malware (trojans, worms, backdoors) to a system. It is usually an executable file that contains a other files compressed inside its body. When a Trojan-Dropper is run, it extracts these compressed files and saves them to a folder (usually a temporary one) on the computer.
In many cases, Trojan-Droppers also drop and executes to display games, images or messages, which serve as decoys to avert attention from malicious activities.
How to Remove the Trojan Horse Dropper Generic
****://www.ehow.com/how_5019739_remove-trojan-horse-dropper-genericfwk.html