It sounds like something
out of a B-grade Hollywood plot — a glimmer drive that you connect to a PC and
is fit for wrecking it inside seconds. A year ago, programmer Dark Purple
uncovered a USB streak drive intended to sear a cutting edge framework when you
connect it to. The drive works by releasing - 220V through the USB port.
The precise points of
interest on how the drive worked weren't quickly discharged. In any case,
there's presently a Hong Kong-based organization offering a USB Kill Drive 2.0
for just $50. Here's the way the organization depicts the item:
The USB Kill 2.0 is a testing device created to test USB ports against power surge attacks. The USB Kill 2.0 tests your device’s resistance against this attack. The USB Kill collects power from the USB power lines (5V, 1 – 3A) until it reaches ~ -240V, upon which it discharges the stored voltage into the USB data lines.
This charge / discharge cycle is very rapid and happens multiple times per second.
The process of rapid discharging will continue while the device is plugged in, or the device can no longer discharge – that is, the circuit in the host machine is broken.
The coordinated way of
advanced SoCs implies that impacting the USB controller with - 200V the way
this drive wills ordinarily cause serious harm, up to and including decimating
the SoC. While present day motherboards incorporate overcurrent security, this
regularly ensures against positive voltage. (The contrast amongst positive and
negative voltage is a reference to the voltage in respect to the ground). On
the off chance that the voltage source is associated with ground by a "-
" terminal, the voltage source is sure. In the event that it associates by
means of the ~ezentity_quot+ezentity_quot~ terminal, the voltage source is
negative.
The bigger inquiry, I
believe, is whether gadgets like this represent a risk to the normal purchaser.
At this moment, I think they don't. At $5, it's anything but difficult to
envision somebody requesting these in mass and scrambling them just to sink
with individuals general. At $50 every, you likely aren't going to falter over
a modest piece of death.
In the meantime, in any
case, ponders have demonstrated that up to half of individuals will merrily
connect to a USB drive they found on the ground without avoiding potential risk
for what sort of information or malware may be on the drive. In the event that
the USB Kill 2.0 is really dispatching in volume, it's presumably a smart
thought to return to that inclination — or if nothing else keep an old PC
around for testing.
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