There are 2 repositories under evasion-attacks topic.
Evasive shellcode loader for bypassing event-based injection detection (PoC)
Taller de Adversarial Machine Learning
Mostly malicious or abusable powershell I've written
Evaluating adversarial machine learning attacks in network intrusion detection systems.
POC developed while writing the paper "A weakness in eBPF-based runtime security applications"