| | 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 | + | |
