Bitcoin 6600GT

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A good Bitcoin mining rig is hard to find. They're expensive, they take up space, they wrack up huge energy bills. Not at all practical for your average ESEA gaming network employee. Nefarious code that turns 14, 000 of your users into an unwitting personal bitcoin botnet? Totally doable.

Like so many great schemes, it must have seemed perfect at the start, like Richard Pryor pulling half-cents out of thin air in Superman III. ESEA is one of the largest competitive gaming leagues in North America, if not the world, with cash prizes if given a gentle nudge in the right direction. ed there at gunpoint.

The best/worst part? The as-yet-unnamed rogue employee didn't even have to come up with any clever code himself. ESEA did that bit for him.

The Trojan Mine

Recently, ESEA decided to experiment with Bitcoin mining. Specifically, with building the feature into its product so that its users could, if they wanted to, harness their powerful GPUs for digital cash instead of digital kills. ording to an goes on to describe, one of the employees involved in the test decided that the code was too good to just abandon. In fact, it could be incredibly useful if you were enterprising enough—and immoral enough—to figure out how to deploy to the rigs of 14, 000 of your network's most valued members. Just hide it somewhere that they need but would never question. Somewhere like, say, ESEA's anti-cheat client, the pride of the company.

And that's where it hid, until a user—not ESEA—found out what was going on. Yesterday.

Quitting Time

At just after midnight yesterday, ESEA user unisolsz discovered that his GPU was being used for something other than, well, anything he intended. Specifically, that it was mining Bitcoins. He sent out a warning in the ESEA forums, and the company pulled the plug.

In just those two weeks, though, the damage was done. The employee had racked up close to BTC30, which is $3, 713.55 in dollars today (and either twice or half that tomorrow, given the variability of Bitcoin).