My suggestion for a new type of file that while running increases the maximum bandwidth on the server. The higher the version, the more BW you receive.
Have it take up a ridiculous amount of hardware and let it be killed remotely, which if done on a PvP target could easily force the target's hardware to overload.
0.1 - 10,000 CPU - 600,000 MEM - +25 BW
1.0 - 100,000 CPU - 6,000,000 MEM - +250 BW
Just a suggestion for how the numbers could work. The file could be used to temporarily increase BW on servers that don't have any, or you could upload it to remote servers and boost the BW there to steal files and such.
i would rather see data hijack virus buffed. and for your server use alpha-9's method - 250 BW + 5 x FS installed. selfdestruct when bw is needed and reinstall after that