-Download Dark Comet (not the latest one cuz thatone asks permission on the slaveside)
-create no-ip account and make a host
-Open a port. just search youtube or google 'how to portforward'
-Make a server with DC that connects to the no-ip you made and the port you forwarded earlier.
**you are ready**
--tips--
-For best results to spread: be original, i used youtube but i reccomend a java drive-by
-Crypting the server is recomended cuz if you don't , the AV of the person you try to infect will immediately detect the server(virus). with crypters you can bind the server to an existing program like swiftkit and this program will still work.
-watch out for people trying to infect YOU while you are searching the internet, never download from youtube descriptions.
hope this helped a little bit
feel free to PM me