Packing is the compression or encryption of an executable file, distinguished from ordinary compression in that it is typically decompressed during runtime, in memory, as opposed to being decompressed to disk, prior to execution. Packers pose an obfuscation challenge to analysts.
A packer called VMProtect, for example, protects its content from analyst eyes by executing in a virtual environment with a unique architecture, making it a great challenge for anyone to analyze the software.
Amber is a reflective PE packer for bypassing security products and mitigations. It can pack regularly compiled PE files into reflective payloads that can load and execute themselves like a shellcode. It enables stealthy in-memory payload deployment that can be used to bypass anti-virus, firewall, IDS, IPS products, and application whitelisting mitigations. The most commonly...
