1 | | - | Jellyfish is a Linux based userland gpu rootkit proof of concept project utilizing the LD_PRELOAD technique from Jynx (CPU), as |
2 | | - | well as the OpenCL API developed by Khronos group (GPU). Code currently supports AMD and NVIDIA graphics cards. However, the |
3 | | - | AMDAPPSDK does support Intel as well. |
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5 | | - | Advantages of gpu stored memory: |
6 | | - | - No gpu malware analysis tools available on web |
7 | | - | - Can snoop on cpu host memory via DMA |
8 | | - | - Gpu can be used for fast/swift mathematical calculations like xor'ing or parsing |
9 | | - | - Stubs |
10 | | - | - Malicious memory may be retained across warm reboots. (Did more conductive research on the theory of malicious memory still being in gpu after shutdown) |
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12 | | - | Requirements for use: |
13 | | - | - Have OpenCL drivers/icds installed (Fun fact: Mac OS X boxes come pre-installed with OpenCL) |
14 | | - | - Nvidia or AMD graphics card (intel supports amd's sdk) |
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16 | | - | Stay tuned for more features: |
17 | | - | - client listener; let buffers stay stored in gpu until you send magic packet from server |
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19 | | - | Disclaimer: |
20 | | - | Educational purposes only; authors of this project/demonstration are in no way, shape or form responsible for what you may use this |
21 | | - | for whether illegal or not. |
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23 | | - | PLEASE READ: |
24 | | - | - For some arbitrary reason this project as well as Demon, has been getting a decent amount of attention. That being said, we just |
25 | | - | want to notify everyone reading this that jellyfish is not complete nor has it even reached the expectations we wanted it to yet. |
26 | | - | We're still circling around ideas and pseudo code upon what we think is cool, so apologies to anyone disappointed that they still have |
27 | | - | a buggy still-in-beta application. Our goal was to make everyone AWARE that gpu based malware IS REAL; and obviously, telling |
28 | | - | from what's been publicized, we succeeded. |
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30 | | - | Also, to an individual that commented on an arstechnica article about us. Yes, we're very early in development for both projects, |
31 | | - | so sit tight and enjoy the show. |
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33 | | - | Heads up: |
34 | | - | - New and upcoming Windows GPU rootkit PoC on the way @ /WIN_JELLY. We have some source available for anyone interested. |
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