Malware
TripleCross
According to its author, TripleCross is a Linux eBPF rootkit that demonstrates the offensive capabilities of the eBPF technology.
TripleCross is a Linux malware family.
Background
Per its author, TripleCross is a Linux rootkit built on eBPF that showcases how the eBPF technology can be turned to offensive use.
Source: Malpedia (Fraunhofer FKIE).