Comment Imagine the rootkits... (Score 1) 103
If you were able to use the GPU to brute-force a password hash or similar authentication token for the system, you could install a rootkit on the card's option ROM.
1.It'd get to run with ring 0 access on each boot before the OS has a chance to do anything.
2. On EFI systems it'd have access to a TCP stack, full FAT and NTFS filesystem access, all included in the EDK. So it could update itself on the fly each boot.
The video card makes a great trojan horse to house your malware.
1.It'd get to run with ring 0 access on each boot before the OS has a chance to do anything.
2. On EFI systems it'd have access to a TCP stack, full FAT and NTFS filesystem access, all included in the EDK. So it could update itself on the fly each boot.
The video card makes a great trojan horse to house your malware.