Top 4 anti-analysis open source projects

Public malware techniques used in the wild: Virtual Machine, Emulation, Debuggers, Sandbox detection.

ProTecT is an MS-DOS packer. While this packer is outdated, it uses a number of interesting anti-analysis techniques that are still relevant today.

This script allows you to create various artifacts on a bare-metal Windows computer in an attempt to trick malwares that looks for VM or analysis tools

AndrODet: An Adaptive Android Obfuscation Detector