| 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. |
| 4 | | - | |
| 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) |
| 11 | | - | |
| 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) |
| 15 | | - | |
| 16 | | - | Stay tuned for more features: |
| 17 | | - | - client listener; let buffers stay stored in gpu until you send magic packet from server |
| 18 | | - | |
| 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. |
| 22 | | - | |
| 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. |
| 29 | | - | |
| 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. |
| 32 | | - | |
| 33 | | - | Heads up: |
| 34 | | - | - Windows GPU rootkit PoC official release @ /WIN_JELLY |
| 35 | | - | |
