bpftool
TripleCross
| bpftool | TripleCross | |
|---|---|---|
| 2 | 11 | |
| 303 | 1,677 | |
| 6.6% | - | |
| 9.1 | 0.7 | |
| 7 days ago | about 1 year ago | |
| C | C | |
| GNU General Public License v3.0 or later | GNU General Public License v3.0 only |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
bpftool
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BPF for Hid Drivers
In the same way out-of-tree kernel modules are enforced to license themselves as GPL if they intend to use a lot (if not most) of the available functionality, eBPF programs fall under the same restrictions.
bpftool[0] allows to see which the programs are currently running in your system, their bpf asm instructions and whether they are GPL-compliant through `bpftool prog show`
Of course, we still need companies to actually release the source code of their eBPF programs somewhere for the promise to be fulfilled.
[0] https://github.com/libbpf/bpftool
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How to tell what created/owns each BPF program running in my system ?
Your distro might not ship the newer version but source is available on Github so you don't have to pull the entire kernel repo to build it.
TripleCross
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eBPF – Running sandboxed programs in a privileged context such as OS kernel
This is a good write-up and I like the diagrams. What appears to still be missing in an "off switch". AFAIK there are still no kernel boot time commands to disable eBPF entirely. I have to recompile the kernel to disable it.
eBPF has the potential for file-less malware to run hidden from detection and I foresee the ability to tickle ring -3 (and -4?) CPU within CPU functions while bypassing local firewalls.
Here is some example code of what people already know how to do today and this list will grow as people discover more capabilities. [1][2][3][4][5] These do require some privileges to insert but will remain running and hidden until reboot.
[1] - https://github.com/citronneur/pamspy
[2] - https://github.com/h3xduck/TripleCross
[3] - https://github.com/krisnova/boopkit
[4] - https://github.com/pathtofile/bad-bpf
[5] - https://doublepulsar.com/bpfdoor-an-active-chinese-global-su...
- TripleCross – Linux eBPF Rootkit
- GitHub - h3xduck/TripleCross: A Linux eBPF rootkit with a backdoor, C2, library injection, execution hijacking, persistence and stealth capabilities.
- Show HN: TripleCross – A Linux eBPF rootkit with a C2 system and more
- TripleCross: A Linux eBPF rootkit with a backdoor, C2, library injection, execution hijacking, persistence and stealth capabilities.
- TripleCross: A Linux eBPF rootkit framework
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Show HN: Credentials dumper for Linux using eBPF
Related: TripleCross - A Linux eBPF rootkit with a backdoor, C2, library injection, execution hijacking, persistence and stealth capabilities.
https://github.com/h3xduck/TripleCross
- TripleCross: Linux eBPF Rootkit
- TripleCross: A Linux eBPF rootkit with a backdoor, C2, library injection, execution hijacking, persistence and stealth capabilities
What are some alternatives?
libbpf - Automated upstream mirror for libbpf stand-alone build.
ebpfkit - ebpfkit is a rootkit powered by eBPF
traffico - Shape your traffic the BPF way
bad-bpf - A collection of eBPF programs demonstrating bad behavior, presented at DEF CON 29
bmc-cache - In-kernel cache based on eBPF.
tubular - BSD socket API on steroids
bpftune - bpftune uses BPF to auto-tune Linux systems
ebpfkit-monitor - ebpfkit-monitor is a tool that detects and protects against eBPF powered rootkits
pwru - Packet, where are you? -- eBPF-based Linux kernel networking debugger
honey-potion - Writing eBPF programs with Elixir!
bpf-developer-tutorial - eBPF Developer Tutorial: Learning eBPF Step by Step with Examples
bouheki - bouheki is KRSI(eBPF+LSM) based Linux security auditing tool.