new PCIe Screamer R02 connected to PCIe extension cable will work OK?

ufrisk / pcileech-fpga

FPGA modules used together with the PCILeech Direct Memory Access (DMA) Attack Software

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new PCIe Screamer R02 connected to PCIe extension cable will work OK? #32

Closed genknife closed 4 years ago

genknife commented 5 years ago

new PCIe Screamer R02 connected to PCIe extension cable will work OK? Because I not have much money, so I want to verify before I purchase one. THX!

ufrisk commented 5 years ago

It works much better than the original one, also it will work ok with an extension cable from what I've seen.

But if stability is paramount for you I still suggest the Xilinx dev boards; the PCIeScreamer R02 (from what I have noticed) is not as good for hot-plugging as the Xilinx dev boards. I have not looked into this much further. As long as the link is detected it works ok though - at least my board.

Also, please understand that I publish a open source software as-is, I'm not involved directly with the PCIeScreamer. I'm not able to give you financial advice on which boards you should get.

genknife commented 5 years ago

What does hot-plugging means? PCIeScreamer works with ExpressCard(case A)? or After laptop into sleep mode then replace m.2 wifi chip with PCIeScreamer connect to PCIe m.2 extension cable(case B)? I bought one original PCIeScreamer several months ago but in case B it didnot work. And I notice the PCIeScreamer R02 has released. So if the PCIeScreamer R02 works with case B, the world is nice. Thank you very much!

ufrisk commented 5 years ago

hot-plugging = inserting the expresscard or powering on the device while the computer is running already - i.e. not having it plugged in when the computer is booting.

yes, it now r02 works with extension cable. I have not tested your configuration though. But for standard PCIe extension cable of "bitcoin mining" model it works for me.

Mera-balou commented 5 years ago

I've just discovered your repo ufrisk, and i am impressed by your work. I have just few notions about DMA and i understand that thunderbolt 3 (which deals with PCIe protocol) is now embedded in most of USB-C/3.1 connectors (tell me if i'm wrong). I have few questions if the DMA attack target is a laptop:

if i buy PCIe Screamer R02 (which i understand that is it the best value for money, even if the stability isn't perfect), is it possible to plug it into a thunderbolt USB-C/3.1 connectors (of a laptop for example)?
if so, which connector/dock might be works to plug PCIe Screamer R02 to the USB-C/3.1 laptop connector?
if not, is it possible to perform DMA attack to a laptop?

ufrisk commented 5 years ago

Thunderbolt3 is mostly secure by default. Also not all USB-C have Thunderbolt3.

In some circumstances it may be possible to change the default behaviour to insecure/legacy in the BIOS though. But even so, more recent versions of Windows hade additional security around Thunderbolt.

An adapter like this may be used.

About DMA, it depends, your best should would probably be the Wifi M.2 key A+e card inside the laptop (if you unscrew the back cover) - many laptops have it (but not all) - and then you would need an M.2 key A+E to PCIe adapter.

Also, in both scenarios the PCIeScreamer would have to be powered externally.

Mera-balou commented 5 years ago

I understand that Thunderbolt3 is mostly secure by default in the bios (i guess that user authorization to approve device before functionality is needed) and fully patched Windows add additional security.

Is-it possible to bypass theses security with UEFI DMA attack? (load a special kernel module for example)
If not, and as you told me, my best might be the wifi M.2 key (or ExpressCard for older one i guess). Wich adapter (M.2 key to PCIe and/or Express Card to PCIe) do you recommend?

Thanks

ufrisk commented 4 years ago

I'm closing this issue due to old age.