It's absolutely impossible.
You even can't burn somenthing in computer through network. Of course you can put 600v in network wires but i think admins will slice you very very slowly...
EMP weapons ? One of three -
1) short range, huge size
2) long range and even bigger size plus extremely high cost and important parts is classified
3) small size pistol-like thing but mad price and.... you never guess what... battery is top secret thing. Of course money can build road to the moon but
flushing megabucks in wc ?
Maximum you can do from distance is nuke
victim's machine but what if he uses some kind of *nix ? Of course there's a way to crash Linux machine (Linux is weakiest of common *nix systems in terms of security)
but it's not for 10 years old k3wl h@c|<eRz . DoS ? Booooooring. And what
if somebody is behind tank-like proxy (guess who ? : ) ) - f#ck 0ff trojans
And how to send that trojan ?
Only complete dumbassez use Outf#ck
Express. I, for example use text browser and web interface. Or at least more secure mailers such as The Bat!
Bigass.mp3 .exe ?
For complete "know how to click" lamers.
Never had any virus since 1995. It was Onehalf but it was killed before anything happened.
Huh, forgot about CIH on my 486 laptop. But it was impossible to run it - i have only DOS on this machine.