Worm virus.

[Izurin]

Worm virus.

It uses very low resources, and each time someone connects to a server infected with a worm, it uploads/installs itself to their server, at a very fast rate. Say, 1 minute for every v0.1 it is. (Or instantly.) (Also, its automatic. It will complete the isntallation itself.)
And the one time it requires ap is the intial installation.

It takes HPD from a target FACTION account!

And if the target cant support the worm, it wont upload itself.
There can be a program that blocks it from uploading itself, and its AV can have a 100% chance to disinfect it.
Also it can only spread itself to a specific amount of servers. (To prevent it from flooding all the servers in the game)
Say 5 servers at max.

And each child process can also have 2 child processes of its own.

The version will also drop by 50% each time it spreads, and doesnt go below v0.1
(Say, v1.0 spreads to someone and becomes v0.5...then that spreads again and becomes v0.25)

Also, if you disinfect its parent host, it will also remove all the child processes it has. (EG : You were infected by xx.xx.xx.xx and youre yyy.yy.yyy.yyy, if you disinfect xx.xx.xx.xx, you will also be disinfected.)
It will not upload itself if youre the one connecting to someone else.

We will also use process tracer (Or a new software for tracing it) To track it back to its host.

[GoS_Kingrick]

should be hidden at V.01 by default, that way its detectable even by newbs but it wont show up in the process list or HDD and be right out in the open. Also it cant be installed on yourself, or on public servers. only private and secret servers. with a cap of V 1.0 on secret servers and unlimited on private servers. that way its more profitable to install on other people. plus it should help prevent abuse.

[tn5421]

So the more 'child' worms you have, the more you profit?

[Izurin]

So the more 'child' worms you have, the more you profit?

You install a v0.1 and profit with it.
When it gains a child process, you gain from them both, but still only collect 1 virus

And you can only have up to 5 child processes, with each of them having their own child process (up to 2)

And each child process is 1/2 the version of its parent process, with it staying above v0.1

[Izurin]

Say what you guys think about it please.
This being my first suggestion, is making me very self-conscious. 

[Exousia]

Similar suggestions have been made. Search them out and see what others have said, maybe you'll get some ideas along these lines.