BeaEngine.lib is a library coded in C (thanks to the IDE Code::Blocks and the compiler Pelles C ) created to decode instructions from 32 bits and 64 bits intel architectures. Actually, the only function available is called Disasm. It includes standard instruction set and instruction set from FPU, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, VMX technologies. For those who like analyzing malicious codes and more generally obfuscated codes, BeaEngine decodes undocumented instructions called “alias” on the web site sandpile. In all scenarios, it sends back a complex structure that describes precisely the analyzed instructions.