Data hijack virus is still pretty useless
You need a good version hijack virus to get some decent bandwidth for the download. If even you manage to get one installed the target will just change IP before you've been able to make use it.
So I suggest a shorter activation time and to make this virus immune to IP change. Then it'd be awesome
Oh and let's not forget this issue which goes hand in hand with this:
http://www.hacker-project.com/forum/index.php?topic=2928.msg28289#new