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USB Killer 2.0: a Harmless-Looking USB Stick That Destroys Computers

An anonymous reader writes: Plugging in random USB sticks in your computer has never been more dangerous, as a researcher who goes by the name Dark Purple has demonstrated his new device: USB Killer 2.0. When plugged into a computer, the deadly USB draws power from the device itself. With the help of a voltage converter the device's capacitors are charged to 220V, and it releases a negative electric surge into the USB port. This surge "fries" the USB port and, in the researcher's demonstration, the motherboard — perhaps not always after the first surge, but the malicious USB device repeats the process until no more power can be drawn.

229 comments

  1. Bonus points by Anonymous Coward · · Score: 0

    Bonus points if it has some legitmate function before it's ready to strike: 802.11n adapter, etc.

    1. Re:Bonus points by Anonymous Coward · · Score: 5, Funny

      Bonus points if it has some legitmate function before it's ready to strike: 802.11n adapter, etc.

      Hypothetically of course ... Just make lots and lots of these. Get a Sharpie. Label each of them with things like TAX DOCUMENTS, ACCOUNT NUMBERS, and definitely lots of them labelled PORN COLLECTION. Drop them in hotels, restaurants, restrooms, subways, bus stops, just leave them all over town. Hilarity ensues!

      For more bonus points, act shocked when you hear about the mysterious computer-killing USB drives. Say you don't believe anyone would do such a thing.

    2. Re:Bonus points by rudy_wayne · · Score: 5, Interesting

      make lots and lots of these

      Label each of them with things like TAX DOCUMENTS, ACCOUNT NUMBERS, and definitely lots of them labelled PORN COLLECTION

      Drop them in hotels, restaurants, restrooms, subways, bus stops, just leave them all over town

      Open a computer repair shop

      Profit!!

    3. Re:Bonus points by Mr+D+from+63 · · Score: 5, Funny

      Anti espionage: Just leave one around the office if you suspect the cleaning crew.

      Russian roulette: Get 1 killer USB and five legits and a few friends... take turns plugging into your computers.

      Search and seizure revenge: "I warned you".

    4. Re:Bonus points by TWX · · Score: 3, Interesting

      What if I use a USB hub? Seeing as how I have only one USB port in this new-fangled era where apparently cables don't matter anymore...

      --
      Do not look into laser with remaining eye.
    5. Re:Bonus points by Anonymous Coward · · Score: 4, Funny

      And hub is connected to the ... ankle bone?

    6. Re:Bonus points by Mr+D+from+63 · · Score: 1

      You still might get some damage to the PC as the power and ground leads are fed from the PC.

    7. Re:Bonus points by Anonymous Coward · · Score: 0

      So then I guess I'm safe since MY 7-port hub runs off it's own wallwart (phone charge, worklight, battery charger, keyboard, mouse, oh yeah - and a usb stick too) - you can't expect a li'l ol' 2.5W port to do TOO much...

    8. Re:Bonus points by Anonymous Coward · · Score: 0

      Bonus points if it has some legitmate function before it's ready to strike: 802.11n adapter, etc.

      Hypothetically of course ... Just make lots and lots of these. Get a Sharpie. Label each of them with things like TAX DOCUMENTS, ACCOUNT NUMBERS, and definitely lots of them labelled PORN COLLECTION. Drop them in hotels, restaurants, restrooms, subways, bus stops, just leave them all over town. Hilarity ensues! For more bonus points, act shocked when you hear about the mysterious computer-killing USB drives. Say you don't believe anyone would do such a thing.

      Well that WOULD cure people of the foolishness of picking up (or stealing) USB drives and plugging them into computers.

    9. Re:Bonus points by fuzzyfuzzyfungus · · Score: 1

      Given the absurdly tiny USB peripherals you can get(typically circuit board and all components occupy the place where there is a plastic spacer under the 4 connectors; and have 4 pads on top where the connectors would be, so the entire device fits inside the connector); this seems like it would be quite doable.

      The current design appears to start hitting the host as soon as it has had enough time to charge; but presumably one could have the 'legitimate' peripheral switch the killer's access to V+ on and off; so it could lie in wait, doing whatever legitimate thing, until some condition is met. Probably not enough room to build GPS in, so 'geofencing with extreme prejudice' might not be an option; but any NIC could listen for signals from the wire/in RF broadcast; and any peripheral could be triggered by a signal from the host computer.

    10. Re:Bonus points by TheCarp · · Score: 1

      No, for bonus points, whenever you check into a hotel, ask to put some items in the hotel safe, always include one of these.

      Put another in the room safe.

      --
      "I opened my eyes, and everything went dark again"
    11. Re:Bonus points by Anonymous Coward · · Score: 1

      They still tend to be connected to the devices power and ground lines, so while it might give you some protection there's still a chance of it crossing over. And the hub chip will still be fried, it's conceivable in doing so that the data lines become live too and those definitely are connected to the PC.

    12. Re:Bonus points by Mr+D+from+63 · · Score: 2

      This thing might be more dangerous if plugged into one of those portable USB power supply battery packs. Not sure what would happen, but a fire is not out of the question.

    13. Re:Bonus points by fahrbot-bot · · Score: 4, Funny

      And hub is connected to the ... ankle bone?

      I tried that. The throughput was terrible. [ 0/10 do not recommend ]

      --
      It must have been something you assimilated. . . .
    14. Re:Bonus points by CohibaVancouver · · Score: 0

      Just make lots and lots of these. Get a Sharpie. Label each of them with things like TAX DOCUMENTS, ACCOUNT NUMBERS, and definitely lots of them labelled PORN COLLECTION. Drop them in hotels, restaurants, restrooms, subways, bus stops, just leave them all over town. Hilarity ensues!

      Linked story doesn't say how much it costs to make one of these, but lets say $15 each. Assuming 'lots and lots' is 100, then your prank is going to cost you $1500.

      What a waste of money. Use that $1500 to buy a plane ticket to London instead and go have a vacation.

    15. Re:Bonus points by dpidcoe · · Score: 2

      To make it more fair, put an "if found" text document in the root of the USB, then some other juicy folders ("passwords", "account information", etc) and set the thing to trigger the pulses only if those folders are accessed. Then you don't nail innocents who were just trying to find the owner of the stick, and the people who you actually are targeting will be more likely to keep the stick plugged in long enough for it to do its damage.

    16. Re:Bonus points by Anonymous Coward · · Score: 1

      But I live in Oxford, it's only about 40 minutes drive to London.

    17. Re:Bonus points by Anonymous Coward · · Score: 5, Interesting

      We had an office thief once. He would take anything and it didnt really matter the value. Shitty old drives, ram, a customers computer we were configuring and other random crap.

      I simply connected every line to Vcc on an old IDE hard disk and put it inside of a desk. The person who owned the desk I told them what was going on.

      Maybe two days later one of the technicians is complaining that his IDE controller no longer works. He would later admit to some drug problems and a predilection for theft.

    18. Re:Bonus points by MobileTatsu-NJG · · Score: 1

      Since when do people label usb drives?

      --

      "I like to lick butts!" by MobileTatsu-NJG (#32700246) (Score:5, Informative)

    19. Re:Bonus points by MiniMike · · Score: 5, Funny

      Label them in large letters 'BACKUPS', and then in small letters underneath 'always make backups!'.

    20. Re:Bonus points by amicusNYCL · · Score: 1

      and the people who you actually are targeting will be more likely to keep the stick plugged in long enough for it to do its damage.

      Watch the video, it looks like it takes less than a second, the OS doesn't even have time to try and mount it. There's a nice ominous buzzing sound and pop that accompanies it as well.

      I'd be lying if I said I didn't want to carry one of these around with me.

      --
      "Our two-party system is like a bowl of shit looking at itself in a mirror." - Lewis Black
    21. Re:Bonus points by amicusNYCL · · Score: 1

      It could definitely use a cord a few feet long that you can yank to retrieve it from whatever you just destroyed.

      --
      "Our two-party system is like a bowl of shit looking at itself in a mirror." - Lewis Black
    22. Re:Bonus points by ejasons · · Score: 1

      This thing might be more dangerous if plugged into one of those portable USB power supply battery packs. Not sure what would happen, but a fire is not out of the question.

      That is true -- I just got one that can supply enough current to jump-start my car!

    23. Re:Bonus points by Alypius · · Score: 1

      Especially if you're traveling to China.

    24. Re: Bonus points by WarJolt · · Score: 1

      Then build motherboards that fry the device back.

    25. Re:Bonus points by Anonymous Coward · · Score: 0

      When they don't want to toss their PORN COLLECTION

    26. Re:Bonus points by Golddess · · Score: 1

      So basically, what it sounds like, is that in addition to surge protectors for coax, ethernet, phone, and of course power (and anything else I am not aware of), we now also need surge protectors for USB ports.

      --
      "I'm not sure I like the fugnutish tone you used in your post!" -RogL (608926)-
    27. Re:Bonus points by thegarbz · · Score: 1

      Yours are unlabelled? How do you tell them apart? Mine are labelled:

      4GB
      16GB
      2GB
      Made in China - Do you want to play a game GB
      Number to small to be expressed in GB because some vendor gave you this and it isn't even big enough to hold their catalog GB.

    28. Re:Bonus points by Anonymous Coward · · Score: 0

      Pretty much what Gord did. http://www.actsofgord.com/Wrat...

    29. Re:Bonus points by dpidcoe · · Score: 1

      Watch the video

      Ha! Since when did we start bothering to rtfa or wtfv around here?

    30. Re:Bonus points by Quirkz · · Score: 1

      I had one labeled "Store 'n' Go" but I renamed it "Gore 'n' Stow". Seemed more fun.

    31. Re:Bonus points by amicusNYCL · · Score: 1

      Man, a story about a USB stick that fries electronics and you don't immediately watch the video? That's awful.

      --
      "Our two-party system is like a bowl of shit looking at itself in a mirror." - Lewis Black
    32. Re: Bonus points by Anonymous Coward · · Score: 0

      But I live in Oxford (...)

      Very well Sir.

      Then use 18 GBP for a return ticket to London on the Oxford Tube.

      The rest put it as a downpayment to get your teeth fixed.

      If you are not a Brit, then just go to a pub and spend the rest on pints and delicious local (i.e. Indian) food.

    33. Re:Bonus points by perryizgr8 · · Score: 1

      Mine are labeled, but in the file system, not on the plastic itself.

      --
      Wealth is the gift that keeps on giving.
    34. Re:Bonus points by perryizgr8 · · Score: 1

      how I have only one USB port

      Don't worry, that's just your shitty choice in hardware. My new Ultrabook has 4 USB 3.0 ports, a DisplayPort, a VGA port, an Ethernet port and couple others that I haven't bothered to figure out.

      --
      Wealth is the gift that keeps on giving.
  2. 110v/220v? by Zerc · · Score: 0

    So the first version only generated 110v while the second generated 220v, is this because of the different USA/Europe markets?

    1. Re:110v/220v? by Anonymous Coward · · Score: 0

      No.

    2. Re:110v/220v? by Anonymous Coward · · Score: 0

      Hmmm they need a 100v version for Japan market.

    3. Re:110v/220v? by Anonymous Coward · · Score: 0

      So the first version only generated 110v while the second generated 220v, is this because of the different USA/Europe markets?

      No my lazy simpleton friend. A quick Google search would have cleared this up very quickly. The search terms I used were "usb killer 110 volts". This is highly esoteric and counterintuitive, I know, but one day you'll catch on.

      Note: if you can post a stupid question to Slashdot, you should be able to reach google.com. If there is ever a rare network failure causing you to be able to reach slashdot.org but not google.com, I would love to see credible documentation of an such event.

    4. Re:110v/220v? by Mr+D+from+63 · · Score: 1

      Not just a killer USB, but standards compliant as well!

    5. Re:110v/220v? by Anonymous Coward · · Score: 0

      Charging a capacitor to double the line voltage is a rather simple circuit.

      https://en.wikipedia.org/wiki/Voltage_doubler#Dickson_charge_pump

    6. Re:110v/220v? by crimson+tsunami · · Score: 1

      I take it you have never heard of China...

    7. Re:110v/220v? by Anonymous Coward · · Score: 2, Insightful

      People ask on forums that are full of context-experts, instead of reverting to Google/Bing/etc. results that are full of context-amateurs, because they don't want to waste their time becoming a context-expert themselves as they would need to do in order to effectively filter the Google/Bing/etc. results.

      Note: if you can post a stupid statement to Slashdot, you should be able to reach your brain and extract the knowledge you have. If there is ever a rare network failure causing you to be able to type but not use your own brain, I would love to see the psychological case study of such an event.

    8. Re:110v/220v? by MachineShedFred · · Score: 1

      Except that in this case, the "line voltage" is 5V DC.

      It's USB.

      The whole 110 / 220 volt thing in the GP's post was a joke.

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
    9. Re:110v/220v? by Anonymous Coward · · Score: 0

      Try paying better attention next time: the voltage you're questioning comes from a capacitor charged to said voltage with the 5v in.

    10. Re:110v/220v? by KevReedUK · · Score: 1

      If there is ever a rare network failure causing you to be able to type but not use your own brain, I would love to see the psychological case study of such an event.

      Erm... AOL, 4Chan, MSN... need I go on?!?

      --
      Just my $0.03 (At current exchange rates, my £0.02 is worth more than your $0.02)
  3. USB usually means you have physic access to the PC by RobinH · · Score: 4, Insightful

    If you have local access to the PC you could just use a sledgehammer. The old 120V into the network port almost always fries the NIC as well. The fact that someone with physical access can damage your PC shouldn't be a big surprise.

    --
    "I have never let my schooling interfere with my education." - Mark Twain
  4. I'm just curious by abednegoyulo · · Score: 1

    I haven't done so and I won't, how bad will it be if the positive and ground terminals were shorted?

    1. Re:I'm just curious by Anonymous Coward · · Score: 0

      I haven't done so and I won't, how bad will it be if the positive and ground terminals were shorted?

      Not bad at all. Windows will complain that you have overloaded the port and that the connected device has a problem.

      The USB spec requires that overcurrent protection be installed on each port.

    2. Re:I'm just curious by Anonymous Coward · · Score: 0

      Shouldn't be bad at all. The OS will detect it and shut off the ports until you reboot. On windows you get a little notification message similar to http://i.imgur.com/hVKTezO.jpg

      At least that's what happens whenever I accidentally short my USB ports (usually by plugging in a cable I've modded for some reason or that one time I plugged my iphone charger in upsidedown).

    3. Re:I'm just curious by Mr+D+from+63 · · Score: 1

      Probably not too much of a spark, as the capacitor can't be very big. Shorting the pins would be an easy way to check it before you used it. But plugging any usb drive in from an unfamiliar source is just stupid.

    4. Re:I'm just curious by nitehawk214 · · Score: 1

      No, he means accidentally shorting the terminals on the USB killer stick.

      Basically shorting a small capacitor. The summary says "With the help of a voltage converter the device's capacitors are charged to 220V" which is next to useless if you don't know what size the capacitor is. Equally useless is "pumping voltage into the computer". Yeah without the number of milliamps there is no way to tell.

      My guess is the thing has to look like a real usb stick, so it will probably just give a small spark and be done. Shorting it with your tongue would be inadvisable, though. :)

      --
      I'm a good cook. I'm a fantastic eater. - Steven Brust
    5. Re:I'm just curious by petermgreen · · Score: 2

      The USB spec requires that auto-resetting overcurrent protection be provided but it doesn't require it to be specific to an individual port. So a shorted USB device can knock out several ports but is unlikely to bring down the whole computer (unless it's something like a raspberry pi).

      --
      note: i'm known as plugwash most places but i screwd up registering that here somehow in the past and now can't register
    6. Re:I'm just curious by Mr+D+from+63 · · Score: 1

      Check that last comment. Shorting won't help in advance assuming it uses the 5v usb to charge the capacitor, so it is not charged in advance. You'd have to apply some power to it first to check it, not simply short it.

    7. Re:I'm just curious by Lisandro · · Score: 1

      Not very. USB has overcurrent protection on ports by design, so they will simply shut down.

    8. Re:I'm just curious by Anonymous Coward · · Score: 0

      The USB spec requires that auto-resetting overcurrent protection be provided but it doesn't require it to be specific to an individual port. So a shorted USB device can knock out several ports but is unlikely to bring down the whole computer (unless it's something like a raspberry pi).

      Correct. I think it does require that the computer not become permanently fried due to an overcurrent.

    9. Re:I'm just curious by TheDarkMaster · · Score: 1

      If it is a quality board (and usually expensive). Shitty boards like the biostar ones can explode.

      --
      Religion: The greatest weapon of mass destruction of all time
    10. Re:I'm just curious by cdrudge · · Score: 1

      I had a laptop where the one of the plastic tabs in the usb port that the contacts are mounted to broke off. Inserting a plug into that port almost always caused a short of the 5v line to ground and the laptop would instantly turn off. Aside from having to reboot and any file system corruption that goes along with an unclean shut down, no harm was ever noticed.

    11. Re:I'm just curious by MyAlternateID · · Score: 1

      The USB spec requires that auto-resetting overcurrent protection be provided but it doesn't require it to be specific to an individual port. So a shorted USB device can knock out several ports but is unlikely to bring down the whole computer (unless it's something like a raspberry pi).

      Wouldn't "overcurrent protection" in the USB spec mean, "shut off if a connected device is trying to drain too much power (amperage) from the USB power pins"? Akin to your home's circuit breaker that prevents overloads?

      It apparently does not mean, "shut off if a connected device unexpectedly has its own independent power source and applies it to the data pins". Normally a device plugged into a USB port drains power from that port and does not independently supply it.

    12. Re:I'm just curious by Lisandro · · Score: 1

      Maybe. Keep in mind that nowadays overcurrent protection is normally implemented on the USB controller itself so it is not a premium feature by any stretch.

      In any case it would certainly not hurt a Thinkpad.

    13. Re:I'm just curious by fuzzyfuzzyfungus · · Score: 1

      I think that some really nasty devices interpret 'resettable' protection rather loosely, and you may need to replace some teeny fuse to get +5v on that port at anything like 500ma again; but mere shorting definitely shouldn't damage anything else.

    14. Re:I'm just curious by Khyber · · Score: 2

      OverCURRENT, *NOT* overVOLTAGE.

      This is a voltage-based attack. Imagine an ESD except it's deliberately fed into the system instead of accidentally conducted through minor plasma arcing.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    15. Re:I'm just curious by Khyber · · Score: 1

      In case you weren't paying attention to the video in the article, the demo laptop WAS a Thinkpad.

      And it was thoroughly HOSED.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    16. Re:I'm just curious by Lisandro · · Score: 1

      Yes, by overvoltage. Not overcurrent, which is what the parent proposed.

      Pay attention.

    17. Re:I'm just curious by Khyber · · Score: 0

      "I haven't done so and I won't, how bad will it be if the positive and ground terminals were shorted?"

      Please show me where the word 'overcurrent' is in that entirety of OP's statement.

      No, you need to pay attention. Maybe take a few EE classes or something.

      VOLTAGE is what kills electronics. Hence VOLTAGE is what is being implied.

      YOU pay attention.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    18. Re:I'm just curious by Lisandro · · Score: 1

      For Pete's sake. Do you understand what happens when you short the +V rail into ground?

      Some reference material for you.

      Also, if voltage is what kills electronics i invite you to randomly start shorting connectors on your motherboard with a piece of wire. Delta V = zero. You'll have a lot of fun, i promise.

    19. Re:I'm just curious by Lisandro · · Score: 1

      It apparently does not mean, "shut off if a connected device unexpectedly has its own independent power source and applies it to the data pins". Normally a device plugged into a USB port drains power from that port and does not independently supply it.

      You're right. But that is not overcurrent nor the case the parent was proposing.

    20. Re:I'm just curious by Anonymous Coward · · Score: 0

      There is no excuse for ignorance of elementary physics. Go sit over there with the "popular" kids.

      When you short the positive and ground terminals of a USB port, you don't magically increase the voltage. I=U/R. A short is a very small resistance, so if you hold the voltage U constant, which the power supply behind the port tries to do, you get a very strong current. To protect the device and its user, there is self-resetting fuse in the path of that current, and that cuts off the power to the port. The "attack" described in the story feeds an externally produced high negative voltage into the port. This kills the port in a different and permanent way.

    21. Re:I'm just curious by Khyber · · Score: 1

      "Also, if voltage is what kills electronics i invite you to randomly start shorting connectors on your motherboard with a piece of wire."

      You apparently fail at understanding what ESD is.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    22. Re:I'm just curious by Lisandro · · Score: 1

      I understand perfectly what ESD is. I'm just not stupid enough to suggest that electronics can only be killed by overvoltage, which is what you proposed. In caps.

      Seriously, you're arguing over things you evidently do not understand.

    23. Re:I'm just curious by Khyber · · Score: 1

      "When you short the positive and ground terminals of a USB port, you don't magically increase the voltage"

      No, but you'll quite often kill the system because now you've got a constant power feed loop just generating shit tons of heat in the chip since it's going nowhere. Take a typical 3.7V e-cig atomizer coil, wire it up to hook to the 5V and ground terminals of a USB plug, plug it in, and activate it. Within five seconds your system will shut down and you'll likely have damage done to your ports, headers, or motherboard.

      "There is no excuse for ignorance of elementary physics. Go sit over there with the "popular" kids."

      Looks like you might've ignored elementary semiconductor physics in its entirety.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    24. Re:I'm just curious by Khyber · · Score: 1

      "I'm just not stupid enough to suggest that electronics can only be killed by overvoltage, which is what you proposed"

      Pay attention. I didn't say that was the ONLY way. QUOTE ME ON WHERE IT WAS STATED AS SUCH.

      You're fucking inserting words where they are not fucking stated. You are WRONG.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    25. Re:I'm just curious by Anonymous Coward · · Score: 0

      Fuse. In the path of the current. Don't sit with the popular kids either, sit in the corner, and STOP EATING THE GLUE!

    26. Re:I'm just curious by Lisandro · · Score: 1

      Sure:

      No, you need to pay attention. Maybe take a few EE classes or something. VOLTAGE is what kills electronics. Hence VOLTAGE is what is being implied. YOU pay attention.

      I took EE classes when i got my engineering degree. Voltage kills electronics alright, but it is not "what kills electronics" alone - see overcurrent, thermal damage, electromigration, overstress and semiconductor degradation for a couple other examples. And finally, no, voltage is NOT what the parent was implying when he proposed shorting the power (positive) terminal into ground.

      I don't feel like arguing over semantics any longer. II'd suggest you read a bit on the subject though (it is quite interesting) and tone down the moral superiority on your replies in the meantime.

    27. Re:I'm just curious by Lisandro · · Score: 1

      You wont. A e-cig coil is nothing but a loop of heating wire with low resistance (between 1 and 4 ohms) and negligible inductance - it would effectively short the USB power output for that port, triggering the overcurrent protection and shutting it down in the process.

    28. Re:I'm just curious by Khyber · · Score: 1

      " And finally, no, voltage is NOT what the parent was implying when he proposed shorting the power (positive) terminal into ground."

      There you go, reading into what someone says and talking without proper information.

      " II'd suggest you read a bit on the subject though (it is quite interesting) and tone down the moral superiority on your replies in the meantime."

      I design and repair electronics systems. I've worked for Google doing such. I design power distribution systems and horticultural automation systems.

      When people ask about what happens when something shorts, 95% of the time they're referring to the voltage aspect, not the current aspect, as they're thinking in terms of batteries. Shorting 3V to your tongue doesn't do shit, 9V starts to hurt, 12V makes white flash across your vision, etc.

      Go on, ask OP to clarify. Bet you 20:1 on them referring to voltage.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    29. Re:I'm just curious by Khyber · · Score: 0

      So, blow the fuse, still fucking dead system. And not all fuses work as intended, don't forget that.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    30. Re:I'm just curious by Lisandro · · Score: 1

      Don't need to. What the OP asked is "what happens when you short the positive and negative terminals on an USB port?". The answer is it shuts down, and the reason is that the overcurrent protection kicks in.

      All the mumbo jumbo about voltage was introduced by you, out of the blue. I honestly have no idea why.

    31. Re:I'm just curious by Lisandro · · Score: 2

      Dead USB port, at most. And most (if not all) USB ports nowadays have self-resetting overcurrent protection so there would be no permanent damage.

    32. Re:I'm just curious by Khyber · · Score: 1

      So I've got a vaporizer coil on a USB cable. Here's a USB 3.0 system. It's dead, Jim. Self-resetting protection means there's some way for power to leak versus a true fusible link which blows in its entirety.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    33. Re:I'm just curious by Anonymous Coward · · Score: 0

      That is not how over current protection works. If you draw more than x amps the protection kicks in, you don't need to sink power anywhere.

    34. Re:I'm just curious by MachineShedFred · · Score: 1

      The only voltages present on a USB connector is +5V DC on the power pin, and variable 0V to 3.6v on the data pins. Shorting the 5V DC to ground would allow as much current available in the circuit to flow through the short (overcurrent), which the USB controller should detect and disable, much like a circuit breaker.

      When talking about a short, you're talking about the unrestricted flow of current at whatever voltage is present. Even in your mostly irrelevant example of shorting a battery, the voltage out of the battery is still constant depending on the battery type, and your tongue is acting as a resistor, still limiting the amount of current that can flow in the "circuit." If you want to have fun, take a paper clip, un-bend it, and "short" a brand new 3V AA battery. It absolutely "doesn't do shit" - it's going to get really hot and burn you if you're holding it with just your fingers.

      That's a real short, and the low voltage matters very little.

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
    35. Re:I'm just curious by Anonymous Coward · · Score: 0

      This doesn't work like that. It charges capacitors to a high voltage from the 5V lines, using a DC-DC converter. the shorts the capacitors over the data lines, repeatedly, until the ESD protection wears out, and then start frying all chips connected to the USB data lines, often a south-bridge or other important chip.

    36. Re:I'm just curious by Anonymous Coward · · Score: 1

      Not on the data lines, which is where this device dump its capacitors. The power lines are only used to slowly charge the capacitors, within official current limits. The ESD protection in the data-lines will catch the first few pules, and then give up and let the high-voltage pulse through.

  5. Coming up at 11... by Viol8 · · Score: 1

    ... news on the CD which when hit with an infrared laser causes the embedded explosives to detonate!

  6. waste of time by Anonymous Coward · · Score: 0

    This is from the Daily Mail not the best British of newspapers. It making these takes lot of time and effort, dropping it in a bucket of tap water would be lot cheaper

    1. Re:waste of time by Rei · · Score: 1

      I second the idea of dropping the Daily Mail in a bucket of tap water.

      --
      The War of 1812... the good 'ol days when the federal government actually tried to save New Orleans.
    2. Re:waste of time by 3.5+stripes · · Score: 1

      Way to ruin a perfectly good bucket of water..

      --


      He tried to kill me with a forklift!
    3. Re:waste of time by MachineShedFred · · Score: 1

      it's not pre-charged.

      It uses the 5v DC power from the USB port to charge the capacitor, and then discharge -220V DC into the data pins once fully charged.

      Dropping this into a bucket of water would only result in a damp boost regulator and capacitor bank, if they built it with a bleed resistor.

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
  7. Home depot sells similar devices by Anonymous Coward · · Score: 0

    Sledge hammers, axes, picks, power drills, reciprocating saws...
    All relatively simple tools that accomplish the same thing if you are close enough to stick a thumb drive into a port.

    1. Re:Home depot sells similar devices by rudy_wayne · · Score: 2

      Sledge hammers, axes, picks, power drills, reciprocating saws...
      All relatively simple tools that accomplish the same thing if you are close enough to stick a thumb drive into a port.

      No, you miss the point. You don't need access to anyone's computer.

      YOU don't put the thumb dive into someone's computer. You just leave it somewhere and THEY put it into their computer.

    2. Re:Home depot sells similar devices by MyAlternateID · · Score: 1

      Sledge hammers, axes, picks, power drills, reciprocating saws... All relatively simple tools that accomplish the same thing if you are close enough to stick a thumb drive into a port.

      The idea is you trick someone into destroying their own computer by sending them an innocent looking device. From reading the comments here, I ask: how fucking hard to understand could this possibly be? Lots of people failed to grasp the concept and that's a shame because it's such a simple one.

      Here's a hint for you, one of those life hints that will serve you well: if you think you found the great big obvious thing that everybody else overlooked because you are just so clever -- it usually means you don't understand and you're missing the point.

    3. Re:Home depot sells similar devices by Rising+Ape · · Score: 1

      Yes, but what's the *point*? So you trick someone into destroying their computer... what does that gain you? It's not as though you can steal data or install malware that way (unless the idea is that they then throw their computer away and you "rescue" it. But that's a stretch.)

    4. Re:Home depot sells similar devices by Cederic · · Score: 1

      Your lack of imagination is distressing.

      Some people like exploring this type of attack, with no intent to ever deploy it.
      Some people are just vandals.
      Some people are malicious.
      Some people are looking for ways to damage target individual or organisation, for good or bad reasons.
      Some people manage to have both the intelligence to devise something like this, and the stupidity to then use it without good reason.
      Some people are stupid enough to use this now that someone else has devised it because they think it'll be a good prank.

      The whole 'computer repair business' angle is explored elsewhere.

  8. Re:USB usually means you have physic access to the by 0123456 · · Score: 4, Insightful

    Uh, no, it doesn't. You just drop a few of these in the parking lot outside a company, and wait for people to pick them up and stick them in their PC.

  9. I want my CD-ROM back! by Anonymous Coward · · Score: 0

    This was never a problem with passive media like CD-ROM. The worst that might happen is that a CD could be fabricated to shatter when it spins, but that would only damage the CD-ROM drive, not the motherboard.

    1. Re:I want my CD-ROM back! by Cederic · · Score: 1

      'only' ? Shit, good luck extracting a shattered CD from a case without damaging anything else, and what's so minimal about having to replace a CD-ROM drive anyway?

      Sure, it's easy - but so is replacing a motherboard.

      Anyway, what about the older version of this: Forcing a floppy disk head to damage itself, rendering the drive useless and consequently the entire machine it was built into inoperable until replaced.

  10. Re:USB usually means you have physic access to the by gurps_npc · · Score: 2
    The concern is not that I will sneak into your room and use my deadly USB killer on your computer.

    Instead, the concern is that someone (like say Uber) will print up 300 USB Killers, perhaps with a label that says something like "best porn", and scatter them around the competition's headquarters (like say Lyft - or vice versa).

    Then some curious Vice President or CEO picks them up and puts them in his computer...

    Found USB sticks - the poor man's 'super hack'.

    --
    excitingthingstodo.blogspot.com
  11. Re:USB usually means you have physic access to the by xxxJonBoyxxx · · Score: 4, Insightful

    >> someone with physical access can damage your PC

    This isn't a local access attack, though. Instead, you label your attacking USB stick with your target company's name and leave it in the parking lot or at a restaurant where you know a lot of your target's employees visit. Some foolish altruist will frequently pick it up and shove it into their computer when they get back to the office. This kind of thing works great for infecting someone's computer with command-and-control malware; if anything this "wreck the computer" attack seems less useful.

  12. Hackaday link with more informations by jcdr · · Score: 1
  13. Re:USB usually means you have physic access to the by stud9920 · · Score: 1

    YOU have physical access to your computer. YOU insert the "Free USB stick" you received totally free from the attacker. The attacker doesn't need to access your computer himself.

  14. AC to Ethernet by DownWithTheMan · · Score: 0

    I did something similar a few years back. I worked for a certain "fruit"-based tech company that has (had?) a policy in place that said if we repaired the same piece of hardware, through no detectable fault of the owner, 3 times in a 12 month period, that the customer was to get a brand new current model computer for free. So in an effort to get upgraded stuff for my family and friends, I spliced an AC power plug to a Cat5 ethernet cable. When I'd plug them all together, it would usually trip the breaker on the electrical panel and sometimes blow sparks out of the ethernet port, but within one or two attempts the logic board (or motherboard for you non-"fruit" techs) would be fried and no one was ever the wiser. o.0

    1. Re:AC to Ethernet by Anonymous Coward · · Score: 2

      Wouldn't this be fraud? I mean you intentionally break a working device and then claim somebody else has to pay for a new and better one. I highly suspect you could end up in jail if you are caught doing a scam like that.

    2. Re:AC to Ethernet by Anonymous Coward · · Score: 2

      Wow, admitting to felony fraud on a public forum while logged in. Great idea!

    3. Re:AC to Ethernet by Anonymous Coward · · Score: 0

      Granted it fits his handle, so hardly surprising.

    4. Re:AC to Ethernet by Anonymous Coward · · Score: 0

      Wow, admitting to felony fraud on a public forum while logged in. Great idea!

      Unless you took special steps to obscure your IP, then posting as AC wouldn't be much of a hurdle for a determined law enforcement agency. Startpage.com (and their parent company) is the only site I know of that claims not to log IP addresses. Slashdot either logs the IP address (like practically every other site) or at least stores a hash of the IP to enforce posting limits, and with the limited IPv4 address space, it would be trivial to find the address matching the hash.

      If you're imagining that Dice would defy a court order, or hire lawyers to dispute it, keep dreaming. It's not reasonable to expect any business to do that for you. The point is, checking Post Anonymously might be handy if you want to tell us what a great big shit-for-brains your boss is, but it won't protect you the moment you start talking about criminal acts.

    5. Re:AC to Ethernet by TheCarp · · Score: 2

      It sure is but, as long as it was only a few devices, how would you get caught? You would have to do something moronic like post about it on a forum or something.

      --
      "I opened my eyes, and everything went dark again"
    6. Re: AC to Ethernet by Bing+Tsher+E · · Score: 1

      True, but we are talking about defrauding Apple, not just any company. That's the equivalent of trash talking Scientology on a forum their zeolots frequent. It's pretty likely some martinet Apple follower has made a note.

  15. Menacing looking usb stick by thinkwaitfast · · Score: 4, Funny
    This is the best that I could find (in 6 seconds or less)

    http://i.ebayimg.com/00/$(KGrH...

  16. "Harmless-looking USB stick"? by jeffb+(2.718) · · Score: 4, Insightful

    If you believe that any unfamiliar USB stick looks "harmless", you clearly haven't been paying attention.

    1. Re:"Harmless-looking USB stick"? by Anonymous Coward · · Score: 0

      If that's a problem, just use familiar USB sticks...

    2. Re:"Harmless-looking USB stick"? by Anonymous Coward · · Score: 0

      Are you trying to make a joke? Because jokes are usually supposed to be something you didn't expect... not the actual solution to the problem. :D

    3. Re:"Harmless-looking USB stick"? by ripvlan · · Score: 1

      ya-know - another idea might be to charge the device to a higher voltage - and then have metal edges exposed through the stick. So that the shock is delivered to the User when they attempt to pull it out.

      The stick would do nothing to the computer - maybe even be empty or show an error. But zap the user could be the prank.

      Kind of a whoopie cushion for computers. Oooh oooh - it could emit blue smoke !!

      Yup - I see this being available for April 1 next year.

  17. Re:USB usually means you have physic access to the by PvtVoid · · Score: 2

    Uh, no, it doesn't. You just drop a few of these in the parking lot outside a company, and wait for people to pick them up and stick them in their PC.

    And then fire their asses for being enough of a dumbfuck to use a USB stick they found in a parking lot.

  18. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 0

    If people are picking up USB devices in the parking lot and plugging them into their work computers then a destroyed motherboard and USB port is hardly the worst consequence of this scenerio. Access to the data on the computer on what they can access with that computer would be much more damaging.

  19. Access to the machine by BlacKSacrificE · · Score: 1
    So we're not even reading TFS anymore peeps?

    Plugging in random USB sticks in your computer has never been more dangerous

    I think the point of this hack is to catch people who pick up random sticks and see whats on them, something I would never, ever do. Nothing to do with needing physical access to the machine, the rube who picked the stick up is all the "access" you need. Someone up there has already made the suggestion of using them for corporate sabotage (Uber vs Lyft), scattering these things around the right place could cause all sorts of drama.

    Also, that poor thinkpad :(

    --
    [Sorry, this signature is unavailable in your country/region]
    1. Re:Access to the machine by Anonymous Coward · · Score: 0

      I have a readme.txt on every usb with my name number and email if I lose it, but now if I find a usb I'm just going to ignore and someone might have to lose theirs D:

    2. Re:Access to the machine by MyAlternateID · · Score: 1

      I have a readme.txt on every usb with my name number and email if I lose it, but now if I find a usb I'm just going to ignore and someone might have to lose theirs D:

      You could pry the cover off. If you see a flash chip and a controller chip, you're good. If you see anything else, like lots of capacitors, don't use it.

    3. Re:Access to the machine by perryizgr8 · · Score: 1

      Also, that poor thinkpad :(

      Exactly what went through my head :( This is one of the thinkpads from the golden era. It is super small, the keyboard has proper keys (not those chiclet crap), and the only pointer input is the nipple. I bet the battery must have lasted 10-12 hours too.

      --
      Wealth is the gift that keeps on giving.
  20. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 0

    I think the dangers are

    1) A sledgehammer is very noticable, whereas a small USB device could be used to discretely (asuming the 220v surge doesn't create a sparking, popping, or other visable/audible indication) destroy computers in a public place (like a library). It may not seem like much of a difference, but you know how it is...give a script kiddie an easy to use tool and they'll cause mayhem just for the heck of it. I'm sure some a-hole will start selling these devices on ebay or something to make them easy to get your hands on

    2) Speaking of selling on ebay, I could also see some ahole selling these on ebay, pretending they are legit devices. If they wanted to maximize the mayhem, they'd do something like make it wait until after a certain date, or until the 100th power up before it does the damage, so that you could first get a lot of them out there before the destruction starts. And as a benefit, that would make it more difficult to locate the source of what went wrong (the vast majority of users would have no idea what went wrong, unless they had multiple computers destroyed by it and could start to connect the dots).

    3) I could also see someone leaving these around in various places for unsuspecting people to pickup and plug into their computer. I know I've done that before...found a usb stick and plugged it in to try to find out who it belongs to.

  21. In other news by Kinthelt · · Score: 1

    It has been discovered that repeatedly dropping a 20 pound sledgehammer on your laptop's keyboard is equally harmful.

    --

    "Evil will always triumph over good, because good is dumb." - Dark Helmet (Spaceballs)

  22. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 0

    Then some curious Vice President or CEO picks them up and puts them in his computer...

    ... and a company with 6-digit expenses has to add a low 4-digit expense to their list, with an extra 4 hours of restoring the backup. During those 4 hours, the VP has a discussion with IT about the dangers of plugging unknown devices into computers of any kind, and requests a resend of all relevant communications since the last nightly backup.

    Since the damage is contained to one system, and nothing is stolen, this attack is about as disruptive as an unexpected hardware failure. Which, honestly, it is. If a lot of employees try to use death-sticks like these, then it has the potential to become a catastrophic hardware failure situation.

  23. BREAKING NEWS by bsdasym · · Score: 3, Insightful

    Plugging random things into your computer can damage it.

    Be sure to watch our followup segment on what could be in that suspicious red can you found labeled "free gas!" The results are horrifying!

  24. Re:USB usually means you have physic access to the by nitehawk214 · · Score: 2

    And companies are absolute shit at keeping stuff secret. When it becomes public that company A pulled this stunt, company A will be sued out of existence.

    --
    I'm a good cook. I'm a fantastic eater. - Steven Brust
  25. Re:USB usually means you have physic access to the by phishybongwaters · · Score: 5, Interesting

    Worked for Stuxnet and most other state sponsored cyber attacks. Just saying. We recently ran a "security awareness" month at the UNI I work for, giving away free flash keys to students who could show us their phone was secured at least with a password or pattern. They seemed surprised that no one bothered and most people told them they are too lazy to have to swype a pattern to unlock their phones. My suggestion was to custom build some pseudo malware, load it on those flash keys, or a set of flash keys, and leave them around campus. Nothing nefarious would happen to the user who did insert it other than an autorun popup informing them that we could have owned them right there if we wanted. The didn't go with my plan, I might still do it on my own. I'm nice like that, when I taught myself to crack into WEP and weak WPA access points that had the management page accessible over wifi and the default admin passwords set, I promptly change their SSID and passwords, letting them know they need to lock that shit down. I'm nice like that

  26. It's totally not vandalism. It's performance art. by Anonymous Coward · · Score: 0

    Another great thing you can try: Pour sugar into a car's tank. Or how about this one: Throw a stone into a window. Most windows are not designed to withstand such a clever attack. WTF folks.

  27. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 0

    If people are picking up USB devices in the parking lot and plugging them into their work computers then a destroyed motherboard and USB port is hardly the worst consequence of this scenerio. Access to the data on the computer on what they can access with that computer would be much more damaging.

    For whom? Access to the data is an "externality" since it will never be traced to them and will probably only lose their company some money. Having your motherboard explode at the same time as many other people did so by plugging in a USB dongle might lose them their job. I think that's probably alot more important to them.

  28. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 1

    #4: Go to local retail store which has a big bin of discounted sticks. Buy some, modify them, put them back.

  29. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 0

    >> someone with physical access can damage your PC

    This isn't a local access attack, though. Instead, you label your attacking USB stick with your target company's name and leave it in the parking lot or at a restaurant where you know a lot of your target's employees visit. Some foolish altruist will frequently pick it up and shove it into their computer when they get back to the office. This kind of thing works great for infecting someone's computer with command-and-control malware; if anything this "wreck the computer" attack seems less useful.

    Less useful, except for one purpose: teaching them a valuable lesson about trust or at least verification. By contrast most malware tries not to be detected.

    I've heard it said that few things would benefit internet security as a whole, more than a virulent piece of malware that spreads for a while and then cryptographically wipes every writable volume on the machine (like the "bcwipe" utility). Then insecure machines run by the incompetent would be taken offline instead of participating in botnets and their owners would know with certainty that yes, there is a problem. Considering these are the same people who tend not to have good backups, it would be a lesson not soon forgotten. The whole "the computer is slow but that's normal they all do that after a while derp" affair is only increasing botnet membership which creates problems for those who have their shit together and therefore don't deserve them.

  30. Re:USB usually means you have physic access to the by phishybongwaters · · Score: 1

    But it's not a hack. Is smashing at router with a hammer a hack? This is pure destruction, no real hack involved. It's much more efficient to deliver your malware via those keys instead of just straight up trying to fry whatever you are connected to. That gives you away as soon as you insert it, and doesn't really do much because no enterprise relies on local storage on client machines, all the data is backed up, hosted in clusters, and perfectly usable. I suspect this "attack" much like the same deal but with an ethernet port, would probably be stopped by most PoE routers/switches as they typically have some surge protection. They detect voltages and resistance and determine the class of PoE device by the resistance offered, each port is configured for a min and max allowance. I don't see this getting past one of those. It seems nasty and scary but is effectively useless.

  31. Seems like this has limited usefulness by mitler · · Score: 2

    My question is, why would someone want to do this in the first place? Yes, it's possible, but destroying someone's computer is generally not profitable to the attacker. It's much more valuable to take over a computer for a botnet, to steal information, or hold information hostage. So while this is possible, I don't see it ever becoming a real problem. The only situation I could see is in trying to hurt competition or good old fashioned revenge. I have to believe the oldest danger is still the most realistic: hidden viruses that are much less obvious.

    1. Re:Seems like this has limited usefulness by BlacKSacrificE · · Score: 2

      The first thing I thought was "well, that will be the first and last time that person takes a security risk like that", but you're average Joe may never make the connection. I would call it a lesson in security, but again, it's not clear enough for most people to cotton onto.

      --
      [Sorry, this signature is unavailable in your country/region]
    2. Re:Seems like this has limited usefulness by coolmoe2 · · Score: 1

      This message will self destruct in one ....
      Would be easier then setting fire to a whole room like in the movies. So I could see the usefulness in some applications where you want to destroy data in a hurry.
      Im sure spies have had something similar for a long time.

    3. Re:Seems like this has limited usefulness by Anonymous Coward · · Score: 0

      Petty, corporate conflict revenge. One of your coworkers hates you and sticks this in your laptop while you are out for lunch. Even with your laptop locked and chained up, there is nothing to stop anyone from doing this.

      And you have to explain to IT that it's not your fault that your laptop breaks every other week.

    4. Re:Seems like this has limited usefulness by PPH · · Score: 4, Interesting

      TSA: "We're going to have to take a look through all your laptops, memory devices and phones, sir."

      Didn't they just have a big computer outage recently?

      --
      Have gnu, will travel.
    5. Re:Seems like this has limited usefulness by Anonymous Coward · · Score: 0

      Hmmm.. I think I need to bring one (zapper USB) with me next time thru customs!

    6. Re:Seems like this has limited usefulness by Hognoxious · · Score: 1

      This message will self destruct in one ....
      Would be easier then setting fire to a whole room like in the movies.

      Well it would be stupid to do it the other way round - once the fire starts there'll be nobody there to see the warning.

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    7. Re:Seems like this has limited usefulness by Kernel+Kurtz · · Score: 1

      I bought a cheap USB iPhone charging cable someplace thinking wow, that is way better than paying for an Apple one. Just plugging it in would crash the PC (but seemed to do no lasting harm).

      Yes, you certainly should not plug in a USB drive you just found somewhere into a PC, but it does not really have to look like a USB drive to be potentially dangerous.

  32. Re:USB usually means you have physic access to the by 0123456 · · Score: 2

    The stick could download crap from the network and send it out over the Internet first, then fry the computer when it's done to destroy any evidence.

  33. Re:USB usually means you have physic access to the by avandesande · · Score: 1

    Except that even if they follow policy and hand them into cyber security, the cyber guys will want to know if they have company information on them, and their computer gets fried!

    --
    love is just extroverted narcissism
  34. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 0

    Give the stick to some secretary and you can use THEIR physical access. Good luck leaving sledgehammers in the parking lot and hoping the local employees bash the computers with them.

  35. Re:USB usually means you have physic access to the by leuk_he · · Score: 1

    The real evil will not the data that is lost (probably none, since you run your station from a VDI somewhere in the enterprise cloud), the real evil is getting a 3-4 digit amount approved to spend.

  36. This should be preventable by cosmin_c · · Score: 1

    There should be extension cables that would have a trip switch for voltages that are that high. Trip switches should really be included in the computing device itself, really. Since when people connect light bulbs or any appliance directly to the main generator without anything inbetween?

    1. Re:This should be preventable by Khyber · · Score: 1

      "Since when people connect light bulbs or any appliance directly to the main generator without anything inbetween?"

      All the time. Welding is one example. Incandescent lights don't need anything more than the right voltage and some current. If that genhead is pushing ~170V peak to peak then pretty much anything US power-based plugged right in will work.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    2. Re:This should be preventable by bobbied · · Score: 1

      A couple of MOV's and a fuse or two will do the trick... If you insist, a "crowbar" circuit that shorts the pins to ground if the voltage exceeds about 10 volts. Easy fix with a handful of components if the board makers wanted to.

      I just seriously doubt this idea will catch on. It's too expensive to duplicate the devices, the device is physical evidence which could aid in tracing it to it's source and the result is basically vandalism so it's of little use to the criminals looking for a profit.

      --
      "File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
    3. Re:This should be preventable by MachineShedFred · · Score: 1

      True. Most appliances and devices meant to be plugged into the wall will tolerate an amazingly wide variance in AC voltage. I have a power conditioner in my home that all my comm gear is plugged into, and it constantly shows that the line voltage is ~130V. Nothing has ever cared.

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
  37. Hub by fulldecent · · Score: 1

    Do USB hubs sufficiently insulate computers from this attack?

    --

    -- I was raised on the command line, bitch

    1. Re:Hub by allcoolnameswheretak · · Score: 1

      I broke a front USB port recently - my headphones were connected, I tripped on the cable and a jerk twisted the USB port.
      Windows 10 reported an error on screen that "There has been a power surge on a USB port and the device has been disabled" or some such. So perhaps, at least Windows 10, seems to be able to detect power surges.

    2. Re:Hub by Anonymous Coward · · Score: 0

      it should, because the usb hub is pretty much (if not) the same chips inside your pc that provide usb functionality in the first place.

    3. Re:Hub by Anonymous Coward · · Score: 0

      That message only means that the overcurrent protection fuse tripped. It's a mandatory part of all USB host implementations. The circuit does not protect against negative voltages or too high voltages though.

    4. Re:Hub by hey! · · Score: 1

      Probably some but not necessarily enough. It depends on how much energy the device packs. I'm guessing not much, because it uses tiny, high voltage capacitors to store energy; they're not going to be able to deliver much current.

      In principle the discharge could travel through the damaged circuits of the hub, up the host cable to the computer, but damaging the hub is work and takes energy so you might luck out, although I wouldn't count on it. Instead I'd get a USB hub with electrostatic discharge (ESD) protection; they're a lot more expensive but a good idea if you live in a lightning prone area.

      Littlefuse makes a small PPTC array specifically designed to provide lightning protection for high speed interconnects like HDMI and USB 3. It's based on PPTC technology so it acts like a self-resetting fuse. I haven't seen it built into cables, but that would be a good idea. The app sheet has a sample PCB layout for a small inline adapter.

      --
      Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
    5. Re:Hub by JakartaDean · · Score: 1

      I could have used this a couple of years back. Long story short, I cross-connected 220V live and ground on a solid state relay connected to a Raspberry Pi and a USB hub on the other side which was in turn connected to another Pi and then a TV. I burned out almost everything (1 Pi, hub, maybe an HDMI cable and an HDMI input to my TV). The HDMI 2 port on the TV was hot, not passive (thanks LG) but there were many possible avenues to ground the charge before damage was done. The device you describe would have saved me a great deal of time and money.

      --
      The subject who is truly loyal to the Chief Magistrate will neither advise nor submit to arbitrary measures (Junius)
  38. How does one protect against this? by invictusvoyd · · Score: 1

    Can this be identified by physical examination? This is disturbing because it can be used to damage an unsuspecting Noob's machine and he wont know what cause it .. Not good.

    1. Re:How does one protect against this? by GungaDan · · Score: 1

      Simple - lick all random USB sticks that you find just like you would with a 9-volt battery you aren't sure has any juice left.

      --
      Eloi are stupid, throw morlocks at them!
    2. Re:How does one protect against this? by Anonymous Coward · · Score: 1

      Plug it into a cheap USB power bank first. The next round in advanced vandalism is to only zap the computer after enumeration. Eventually you'll have to learn not to plug in random USB hardware.

    3. Re:How does one protect against this? by amicusNYCL · · Score: 1

      This is disturbing because it can be used to damage an unsuspecting Noob's machine and he wont know what cause it .. Not good.

      When the Noob puts a random USB stick into his computer and immediately hears a buzz and a pop, and the screen goes blank, I think that the Noob should know exactly what caused it.

      --
      "Our two-party system is like a bowl of shit looking at itself in a mirror." - Lewis Black
    4. Re:How does one protect against this? by MachineShedFred · · Score: 1

      If they implement a simple bleed resistor, the capacitors would have nothing in them shortly after being unplugged from the last 'victim.'

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
  39. Mission Possible! by NMBob · · Score: 1

    The secretary is going over the disavowing guidelines in the employee handbook.

  40. Easy Fix by Anonymous Coward · · Score: 0

    Use a mini hub.

  41. Another idiot... by Anonymous Coward · · Score: 0

    Is going to say just take a sledge hammer to the computer. sigh.

  42. Guess we'll be seeing lock sales by RogueWarrior65 · · Score: 1

    I can envision computers at tradeshows being equipped with these:
    http://www.amazon.com/Lindy-US...

  43. Re:USB usually means you have physic access to the by 140Mandak262Jamuna · · Score: 4, Insightful

    My suggestion was to custom build some pseudo malware, load it on those flash keys, or a set of flash keys, and leave them around campus. Nothing nefarious would happen to the user who did insert it other than an autorun popup informing them that we could have owned them right there if we wanted.

    Don't do it on your own. Don't do it with serious back up and written guarantee for support from higher ups. What you are doing is very similar to finding homes with unlatched/unlocked back porches, walking in sitting in the living room sofa and shouting boo when the home owners walk in. No matter how sensible and helpful your advice is, the homeowners are going to be jumpy, irritated, made to look like fools and they will hate you intensely.

    Try to do it differently. Create these USB warning devices as you planned, but give them to students, tell them what it does and ask them to "educate" their friends and relatives. Watermark each device so that they don't prank unsuspecting people.

    --
    sed -e 's/Chuck Norris/Rajnikant/g' joke > fact
  44. Re:USB usually means you have physic access to the by Kokuyo · · Score: 1

    So in your world accessing an open website with default credentials counts as 'cracking'?

  45. I want one. by fraxinus-tree · · Score: 1

    Seriously. People keep "borrowing" USB flashes from me all the time.

  46. Re:USB usually means you have physic access to the by fuzzyfuzzyfungus · · Score: 1

    This attack is hardly high on my list of concerns(since, as you say, there are more unpleasant things to do if you have access); but it might be an issue for 'kiosk' type systems.

    If you go into a CVS or other place that does photo printing, they usually have a couple of computers so you can plug in your camera or flash drive and self-serve, maybe do a few cheesy edits. Kinkos and the like do the same thing for printing from or scanning to flash drives. Those are the sorts of places where you can't really get out a hammer or just plug one end of a cord into the wall and the other end into the USB port; but plugging in a flash drive and playing the hapless technophobic customer who doesn't understand why it isn't working if anyone confronts you would be doable.

    Still a lot of trouble for a little petty destruction; but we are talking about humans here.

  47. Re:USB usually means you have physic access to the by dave420 · · Score: 1

    All the evidence apart from the logs held on the hard disk...

  48. Nasty by dskoll · · Score: 1

    To protect against that, you'd need some beefy diodes or zener diodes to divert any harmful energy. Can't see MB manufacturers doing that any time soon.

    1. Re:Nasty by pz · · Score: 1

      A fuse works really well.

      --

      Put my fist through my alarm clock with its ding-dong death inside my ear. - The Blackjacks.
    2. Re:Nasty by Anonymous Coward · · Score: 0

      It's already dead before the fuse blows, you need usb -> fuse -> diodes -> usb controller

  49. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 0

    It is a 'social hack' in that you trick someone into doing something nefarious. One wouldn't plug these devices into computers themselves, that would be silly. The goal is to get others to fry their own machines.

    Like someone else posted earlier, you could have malware on this too. If the malware was successfully installed, it does _not_ trigger the self-destruct (so the malware can exfiltrate data), but if the malware fails to embed itself, the USB device fries the machine.

  50. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 0

    Depends on your aim. Malware isn't going to harm them directly. It'll slow down the computer but they'll likely detect and quarantine it. More useful is targetted espionage, collecting files, password, key strokes etc. But that's if they have information you want. If your only aim is to harm the company (disgruntled ex-employee / fed up customer) then you might be happy with just costing them money to replace their hardware. Bonus points if they brick several computers before they realise it's the dongle.

  51. Re:USB usually means you have physic access to the by Dutch+Gun · · Score: 1

    I wonder how many of these people would also inject themselves with a syringe filled with glowing green goo they happened to find labeled "Super-serum"?

    --
    Irony: Agile development has too much intertia to be abandoned now.
  52. Re:USB usually means you have physic access to the by squiggleslash · · Score: 1

    It's easier than that in most of Europe (well, things might have improved since I left but...)

    Once upon a time a friend of mine was leaving the company. He didn't much care for my co-worker, who sat next to me, and nor did most of the rest of the company. So on his way out, passing by our desks, he quietly flipped the voltage selector on the PSU of my co-workers PC, which was at the time (and possibly now?) on the outside of the case at the rear of the PC where virtually anyone can access it, from 220V to 110V.

    Which might have been slightly funny, if abusive and unprofessional, except the fucker got the PC wrong and killed my PC instead (or rather, I did when I turned my PC on in the morning.)

    I got a free drink and many apologies after it was discovered what had happened. So there's that.

    --
    You are not alone. This is not normal. None of this is normal.
  53. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 0

    That may be "nice" but never let that sort of activity be traceable. Still counts as "hacking" to people who would spend time and money prosecuting you

  54. Re:USB usually means you have physic access to the by Red+Herring · · Score: 1

    If you live in the same world as Andrew Auernheimer (for slightly different but very related case), then yes, the jury does seem to think that accessing unsecured data that someone else doesn't want you to counts as 'cracking' and can lead to jail time.

    --
    #include "standard_disclaimer.h"
  55. Re: USB usually means you have physic access to th by Anonymous Coward · · Score: 0

    The method of delivery is a hack. The payload isn't.

  56. Re:USB usually means you have physic access to the by gstoddart · · Score: 2

    And, yet, it apparently works. As in people have done it before. And, if dropping them in the parking lot doesn't work, stamp a logo on them, put them in a package with official looking marketing glossy, and send them as targeted attacks.

    See, the problem is the humans are always the weak links in your chain.

    Of course, you can't target what machines might be impacted. But if the general plan is mayhem, that's always easy to achieve.

    --
    Lost at C:>. Found at C.
  57. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 0

    You talk about planning to commit a felony, and your profile appears to use your real name, Rob MacDonald. Are you an idiot?

  58. Etherkiller by Anonymous Coward · · Score: 0

    I'm just going to leave this here: http://www.fiftythree.org/etherkiller/

  59. Re: USB usually means you have physic access to th by Anonymous Coward · · Score: 0

    That's why you make it erase the HD first then fry it. Come on, you know this.

  60. A whole now definition... by bobbied · · Score: 1

    This gives us a whole new thing we can call a "Flash Drive"... Imagine the confusion this will cause..

    --
    "File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
    1. Re:A whole now definition... by U2xhc2hkb3QgU3Vja3M · · Score: 1

      Could be a good new prank hardware though... a real "Flash Drive". Plug it into a USB port and after a three seconds it flashes a powerful white LED light for 1/10 of a second.

    2. Re:A whole now definition... by neminem · · Score: 1

      And then disconnects itself and drives off!

  61. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 0

    no enterprise relies on local storage on client machines

    Hey, don't make me shoot coffee out my nose!

  62. What about powered USB hubs? by justthinkit · · Score: 1

    What happens if you plug this into a powered USB hub? Does it fry the hub?

    At least hub makers could (re)design their products to handle this.

    --
    I come here for the love
  63. Emergency Anti-Seizure Tool? by Anonymous Coward · · Score: 0

    Looks like it could be used to deliberately zap your own PC if it seemed imminently threatened with physical seizure by "authorities"...

    1. Re:Emergency Anti-Seizure Tool? by MachineShedFred · · Score: 1

      Except the storage devices would be largely unaffected, and could still be removed and used for forensic analysis. This wouldn't prevent anything except a working device.

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
  64. Re:USB usually means you have physic access to the by amicusNYCL · · Score: 1

    If you have local access to the PC you could just use a sledgehammer.

    Yeah, I suppose you could carry a 10 pound sledgehammer around and spend time beating a computer and making plenty of noise doing it. Or, you could carry a USB stick a few grams in your pocket and take a second to fry the electronics while making hardly any noise (depending on what you're frying, of course).

    You can also carry a gun and just shoot the computer. Or throw it out a window, or into water. All of those "use cases" for computer destruction are different than the use case for the USB stick.

    The fact that someone with physical access can damage your PC shouldn't be a big surprise.

    That's not what this story is about. The headline doesn't say "man figures out how to damage computer".

    --
    "Our two-party system is like a bowl of shit looking at itself in a mirror." - Lewis Black
  65. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 0

    It worked for Google...no jail time.

  66. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 0

    ATMs have USB ports. I'm just sayin'...

  67. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 0

    Was that the ../../ in the address bar guy?

  68. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 0

    One better, how about making it look like HP Smart Start.... ouch

  69. Re:USB usually means you have physic access to the by bill_mcgonigle · · Score: 2

    if anything this "wreck the computer" attack seems less useful.

    Imagine that you're a CIO tasked with protecting data worth billions of dollars.

    Drop a few of these in the parking lot or cafeteria, and write off a few $800 Dells to find and eliminate the employees who cannot be trained to not do stupid things that will severely damage the company.

    I'd do it.

    --
    My God, it's Full of Source!
    OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
  70. This has happened before... by Anonymous Coward · · Score: 0

    In the early 1990s, before USB, there was a push for parallel port dongles and ISA port cards. The company I was working for at the time was about to do exactly this -- the software would be scanned and the CRCs executables sent to the dongle or card. If they didn't match, the card would use a voltage multiplier to fry the computer. Since this was noted in the EULA that "physical damage can occur if the software is tampered with",

  71. Re:110v/220v? voltage converter by clay_buster · · Score: 1

    TFA said there was a previous version that was 110V. They probably changed the charge pump / aconverter design to increase the zap voltage.

  72. What challenging "Research" by Anonymous Coward · · Score: 0

    Totally useless technology produced from a malicious waste of time. Destroying things is very, very easy. Try doing something that makes a difference in our survival.

    ~daedlanth

  73. bite the hand that feeds you by yes-but-no · · Score: 1
    Interesting from a philosophical point of view -- the USB got energy little by little from the mother board -- saved up enough in its storage (capacitors) and then sent back one lethal shot to the "mother" back.

    So always ask for expense report so you know where your money is going.

  74. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 0

    Stuxnet was most definitely deployed by spies working inside the enrichment facility.

  75. RIP Thinkpad by Anonymous Coward · · Score: 0

    RIP Thinkpad

  76. Do you want incarceration? by rsborg · · Score: 1

    TSA: "We're going to have to take a look through all your laptops, memory devices and phones, sir."

    Didn't they just have a big computer outage recently?

    Because this is how you get incarceration.

    --
    Make sure everyone's vote counts: Verified Voting
  77. Re:110v/220v? voltage converter by MachineShedFred · · Score: 1

    Very likely. Why overvolt by 30.5x when you can go all the way to 61x?

    --
    Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
  78. Yawn by Muad'Dave · · Score: 1

    Why is this even a thing? It's in no way ingenious, just destructive. Voltage doublers/transformers are old school - how do you think camera flashes work? This is just another case of $OLD_INVENTION "... in a USB stick!" syndrome.

    --
    Tiller's Rule: Never use a word in written form that you've only heard and never read. You will end up looking foolish.
    1. Re:Yawn by U2xhc2hkb3QgU3Vja3M · · Score: 1

      I think it's more of a proof of concept, to show that people plugging unknown/found devices into USB ports really can be dangerous for the hardware.

  79. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 0

    We recently ran a "security awareness" month at the UNI I work for, giving away free flash keys to students who could show us their phone was secured at least with a password or pattern. They seemed surprised that no one bothered and most people told them they are too lazy to have to swype a pattern to unlock their phones.

    Did they also ask if the students that didn't bother had anything important on their phone? Perhaps they realized that password and patterns are easily circumvented and instead made sure that anyone who got access to the phone didn't get anything important.

    Perhaps they never leave their phone unattended and decide that that security is enough. It's not like my house or car keys are protected by a pin-code, and those are far more important than my phone.

    Essentially, they could easily have made a far more advanced security decision than what was tested for.

  80. Re:USB usually means you have physic access to the by Golddess · · Score: 1

    Yeah, even if it wasn't one of these devices from TFA, that's still a pretty stupid thing to do. For all you know there could be kiddie porn on it. And you're sticking that thing in your work PC with all the associated monitoring that comes with the territory?

    --
    "I'm not sure I like the fugnutish tone you used in your post!" -RogL (608926)-
  81. What about the OS? by U2xhc2hkb3QgU3Vja3M · · Score: 1

    But I use a Mac running OS X... I'm immune to this, right? /sarcasm

  82. Micro USB? by RayHs · · Score: 1

    Couldn't the same thing be applied to micro USB and kill cell phones? Though I suppose it may take longer time to build the necessary charge.

  83. Re:USB usually means you have physic access to the by Darinbob · · Score: 3, Funny

    Someone left a sledgehammer lying in the parking lot. Cool, I thought. So I picked it up, went inside, then smashed my computer. Whoops, I was fooled.

  84. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 0

    Or label it with "Widgets Inc Salary Data". Nobody can resist taking a peek at that.

  85. Re:USB usually means you have physic access to the by painandgreed · · Score: 4, Insightful

    if anything this "wreck the computer" attack seems less useful.

    Imagine that you're a CIO tasked with protecting data worth billions of dollars.

    Drop a few of these in the parking lot or cafeteria, and write off a few $800 Dells to find and eliminate the employees who cannot be trained to not do stupid things that will severely damage the company.

    I'd do it.

    Ya, watch the person you catch to be the CEO.

  86. Re:USB usually means you have physic access to the by tlhIngan · · Score: 1

    We recently ran a "security awareness" month at the UNI I work for, giving away free flash keys to students who could show us their phone was secured at least with a password or pattern. They seemed surprised that no one bothered and most people told them they are too lazy to have to swype a pattern to unlock their phones.

    Why do you think Apple did TouchID? It was because Apple realizes that most people don't use a PIN code or whatever because it's a hassle. And looking at usage patterns of phones, it's not really a big surprise - those things are used literally 1000 times a day for seconds to minutes per use. Entering even a 4 digit PIN 1000 times a day gets old, quick.

    So most people don't actually use it.

    Apple realized the only way to fix this is to have some sort of thing where users don't have to do anything - unlocking their phone happens automatically within seconds of picking it up.

    Doing this means users can have a PIN (or even a complex one!) to lock their phone, yet still have the convenience of being able to use their phone at a moment's notice.

    Because having a PIN is way better than not having one. And having one is a PITA when you want to quickly look at something and it takes a few seconds to enter your pin/swipe your pattern/scan your face.

    No, TouchID is not perfect, and Apple treats fingerprints as lower security than passcodes or PINs (hence the requirement to use a PIN after 48 hours, or on a reboot). But if it brings up the PIN code usage from 10% to 60% or more, that's a net benefit to security.

  87. Re:USB usually means you have physic access to the by Technician · · Score: 1

    120 V into the NIC does very little. NIC's are transformer coupled and the transformers couple very little low frequency. Most NIC magnetics provide about 1,500 Volts isolation. This provides protection from lightning induced surges. If you apply 120V on one pair of wires in the NIC, you simply burn out the transformer, but the power does not cross any further.

    Caveot, POE has some DC coupling and could be damaged by excessive voltage. Most PC NIC's do not have POE.

    --
    The truth shall set you free!
  88. Nice! by Greyfox · · Score: 1

    When will they be selling them on Thinkgeek?

    --

    I'm trying to teach myself to set people on fire with my mind... Is it hot in here?

  89. a squirt gun would be faster by Anonymous Coward · · Score: 0

    A squirt gun with salt water in it.
    Shoot the USB port and the computer will have problems.
    WTF would someone spend time making something like this?
    Are they trying to sell voltage protectors for USB ports?

  90. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 0

    Except this isn't a small usb stick. Watch the video closely.
    There are wires coming out the back of the usb stick that go to the big transformer to the right.
    Not something you're just going to pocket, and too big to be subtle.

  91. Re:USB usually means you have physic access to the by KGIII · · Score: 2

    *raises hand slowly*

    --
    "So long and thanks for all the fish."
  92. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 0

    "Alot" is not a word. Do you type afew? Alittle? Abunch? No? Then why would 'alot' be a word?

  93. Re:USB usually means you have physic access to the by Jack+Griffin · · Score: 1

    Slight variation, some bored kids were always hanging down the park just up the street. One of my friends decides to test a theory and pick up rocks whenever he finds them and leave in the park near where the kids hangout. After a few weeks the pile of rocks grows bigger until one day the building next door ended up with smashed windows.
    Theory proven.

  94. Re:USB usually means you have physic access to the by Anonymous Coward · · Score: 0

    This.

    IF I lose my phone, or if it gets stolen very little information of interest to a common thief is going to be found.

    Oh, they'll get all my contacts and see a few text messages and they'll be able to use the phone until I do something about it.

    losing my wallet or my keys (especially at the same time) would be much more troublesome.

  95. bah by adhdengineer · · Score: 1

    I already did this when playing with an arduino and stepper motors. Accidentally bridged the 12v motor power supply with the 5v usb rail and poof! computer rebooted and came back up without sound. turns out i'd release the magic smoke from the on board sound controller.

  96. Re:USB usually means you have physic access to the by dodobh · · Score: 1

    That's a question of who your opponent is. If you are worried about the police, don't use the fingerprint.

    --
    I can throw myself at the ground, and miss.
  97. Re:USB usually means you have physic access to the by Cinnamon+Beige · · Score: 1

    Funny, I keep anything I need to access quickly that isn't worth securing on my lock screen--that is to say, when locked my phone is an excellent clock and I can see if I want to bother checking now any messages since it displays the number and what service it came in through. I want to be able to let people see my lock screen, if nothing else because it has a picture of one of a cute hamster.

    Anything else? Because I use my pattern so often I don't even need to wake up, and I don't need to unlock my phone to answer calls--if my phone gets lost I want to be able to call it, and if somebody's found it I want them able to answer! (You have to unlock the phone to actually call anyone.)

  98. Reverse? by silanea · · Score: 1

    Has anyone ever implemented this in reverse,ie.: modified a USB port to kill unauthorised devices? I am currently sketching up a design for doing so on a ThinkPad but would love some input on the electrical side.

    --
    Rudolf Hess edited Mein Kampf. He was the very first grammar nazi.